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1. VM MONITOR STATUS icons are not displayed when w viewing enhanced DTCs In the case of long code definitions or when viewing Sr Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the and buttons as necessary to view the additional information OBD2 47 Using the Diagnostic Tool VIEWING ABS DTCs m The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No Enhanced DTC s are presently stored in the vehicle s computer is displayed Press the FF M en button to return to the Toyota Lexus Enhanced menu ES No Enhanced DTCs are presently stored in the vehicle s computer Press FF M to exit 3 If more than one code was retrieved press the DTC SCROLL ES button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again 4 When the last retrieved DTC has been displayed and the DTC SCROLL E button is pressed the Diagnostic Tool returns to the Toyota Lexus Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the FF M button The Di
2. D Oxygen Sensor Monitor The Oxygen Sensor monitors how much oxygen is in the vehicle s exhaust It generates a varying voltage of up to one volt based on how much oxygen is in the exhaust gas and sends the signal to the computer The computer uses this signal to make corrections to the air fuel mixture If the exhaust gas has a large amount of oxygen a lean air fuel mixture the oxygen sensor generates a low voltage signal If the exhaust gas has very little oxygen a rich mixture condition the oxygen sensor generates a high voltage signal A 450mV signal indicates the most efficient and least polluting air fuel ratio of 14 7 parts of air to one part of fuel The oxygen sensor must reach a temperature of at least 600 650 F and the engine must reach normal operating temperature for the computer to enter into closed loop operation The oxygen sensor only functions when the computer is in closed loop A properly operating oxygen sensor reacts quickly to any change in oxygen content in the OBD2 23 Onboard Diagnostics OBD2 MONITORS exhaust stream A faulty oxygen sensor reacts slowly or its voltage signal is weak or missing The Oxygen Sensor Monitor is supported by spark ignition vehicles only The Oxygen Sensor Monitor is a Two Trip monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at
3. Use the UP and DOWN buttons as necessary to highlight Adjust Brightness in the Menu then press the ENTER button m The Adjust displays Brightness screen m The Brightness field shows the current brightness setting from 1 to 4 Press the UP Gi button to decrease the brightness of the display make the display darker Press the DOWN button to increase the brightness of the display make the display lighter Tool Setting Menu 1 7 Audible Tone Display Backlight DTC Library Press FF M to exit Tool Setting Menu 1 7 Adjust Brightness Audible Tone Press FF M to exit Brightness 3 Darker Lighter Press FF M to exit When the desired brightness is obtained press the ENTER a button to save your changes and return to the Menu Enabling the Audible Tone 1 Use the UP and DOWN buttons as necessary to highlight Audible Tone in the Menu then press the ENTER button m The Audible Tone screen displays Press the UP Gi or DOWN button as necessary to highlight ON or OFF as desired When the desired option is selected press the ENTER button to save your changes and return to the Menu Tool Setting Menu 2 7 Adjust Brightness Audible Tone Display Backlight DTC Library Press FF M to exit Audible Tone ON OFF Press FF M to exit OBD2 Additional Tests ADJUSTMENTS AND SETTINGS Using the Backlight 1 Use the UP
4. F Sensor 2 Command XXX X Commanded EGR EGR Command XXX X Commanded Evaporative Purge EVAP Command XXX X Commanded Throttle Actuator TAC Dist DTC Clr km XXXXX Distance since DTC Cleared mile Dist MIL ON km XXXXX Distance Traveled while MIL ON mile E ECT C XXX XXX Engine Coolant Temp F ECU Volts V XX XXX Control Module Voltage EGR Error XXX X EGR Error Eng RPM min XXXXX Engine RPM EQ Ratio X XXX Commanded Equivalence Ratio EQ Ratio 11 X XXX Bank 1 Sensor 1 Equivalence Ratio EQ Ratio 12 X XXX Bank 1 Sensor 2 Equivalence Ratio EQ Ratio 13 A XXX Bank 1 Sensor 3 Equivalence Ratio EQ Ratio 14 X XXX Bank 1 Sensor 4 Equivalence 68 OBD2 Generic Global OBD2 PID List Tool Display Unit Value PID Description Ratio EQ Ratio 21 X XXX Bank 2 Sensor 1 Equivalence Ratio EQ Ratio 22 X XXX Bank 2 Sensor 2 Equivalence Ratio EQ Ratio 23 X XXX Bank 2 Sensor 3 Equivalence Ratio EQ Ratio 24 X XXX Bank 2 Sensor 4 Equivalence Ratio EVAP Press Pa XXXX XX Evap System Vapor Pressure in IXX XXX H20 FP Vac kPa XXXX XXX Fuel Rail Pressure relative PSI IXXX X toVacuum Fuel Level XXX X Fuel Level Input Fuel Press kPa XXX Fuel Rail Pressure PSI XX X Fuel Press kPa XXXXX Fuel Rail Pressure PSI IXXXX X Fuel Sys 1 OL Fuel System 1 Status Fuel Sys 1 CL Fuel System 1 Status F
5. Use the UP and DOWN buttons as necessary to highlight Vehicle Info then press the ENTER button m The Vehicle Info Menu displays Use the UP and DOWN buttons Test Mode View Freeze Frame Tool Settings 2 3 Press FF M to exit as necessary to highlight Vehicle ID then press the ENTER CH button A One moment please message displays while the requested information is retrieved from the vehicle s computer The first time the Vehicle ID function is used it may take several minutes to retrieve the information from the vehicle s computer the vehicle ID information is shown on the Diagnostic Tool s display Use the UP and DOWN buttons as necessary to view the entire list Vehicle Info Menu 1 3 Vehicle ID Available Modules IPT Press FF M to exit Vehicle Information VIN 2G2GT22QPT3200012 Module 20 Cal ID HYBGH31x HEX CVN ES 6C 02 6E Press FF M to exit When you have finished viewing the retrieved vehicle ID information press the FF M button to exit Viewing Available Modules The Diagnostic Tool can retrieve a list of modules supported by the vehicle under test 1 OBD2 While linked to the vehicle press and release the FF M button m The Test Mode Menu displays Test Mode View Freeze Frame 2 3 Vehicle Info Tool Settings Press FF M to exit 61 Additional Tests VIEWING VEHICLE INFORMATION 62 2 Use the UP CG and
6. light OBD1 On Board Diagnostics Version 1 also referred to as OBD OBD2 83 Glossary GLOSSARY OF TERMS AND ABBREVIATIONS 84 OBD2 On Board Diagnostics Version 2 also referred to as OBD II On Board Computer The central processing unit in the vehicle s computer control system PCM Powertrain Control Module Pending Code A code recorded on the first trip for a two trip code If the fault that caused the code to be set is not detected on the second trip the code is automatically erased PID Parameter Identification STFT Short Term Fuel Trim is a program in the vehicle s computer designed to add or subtract fuel from the vehicle to compensate for operating conditions that vary from the ideal A F ratio The vehicle uses this program to make minor fuel adjustments fine tune on a short term basis Trip Drive Cycle Vehicle operation that provides the necessary driving condition to enable a vehicle Monitor to run and complete its diagnostic testing VECI Vehicle Emission Control Information Decal OBD2 Warranty and Servicing LIMITED ONE YEAR WARRANTY The Manufacturer warrants to the original purchaser that this unit is free of defects in materials and workmanship under normal use and maintenance for a period of one 1 year from the date of original purchase If the unit fails within the one 1 year period it will be repaired or replaced at the Man
7. light to warn the driver and sets a Diagnostic Trouble Code DTC to identify where the problem occurred A special diagnostic tool such as the Enhanced OBD2 Diagnostic Tool is required to retrieve these codes which consumers and professionals use as a starting point for repairs The Enhanced OBD2 Diagnostic Tool provides the additional ability to retrieve enhanced DTCs from most Chrysler Jeep Ford Mazda GM Izusu Honda Acura and Toyota Lexus vehicles as well as Anti Lock Brake System ABS DTCs Supplemental Restraint System SRS DTCs and vehicle information The types of enhanced data available depends on the vehicle make OBD2 1 You Can Do It EASY TO USE EASY TO VIEW EASY TO DEFINE Easy ToUse m Connect the Diagnostic Tool to the p3 vehicle s test connector ER m Turn the ignition key On m The Diagnostic Tool will automatically link to the vehicle s computer Easy To View m The Diagnostic Tool retrieves stored codes Freeze Frame data and I M SQOLSSODSO ll Readiness status SSSSOOS D P2247 Generic m Codes I M Readiness status and 02 sensor reference voltage Freeze Frame data are displayed on the circuit open bank 2 sensor 1 Diagnostic Tool s display screen System status is indicated by LED indicators Easy To Define TUTO ES FREEZE FRAME m Read code definitions from the Diagnostic Tool s display m View Freeze Frame data 2 OBD2 Safety Precautions SAFET
8. CODE RETRIEVAL PROCEDURE m DTC s that start with P1 and some P3 are Manufacturer specific codes and their code definitions vary with each vehicle manufacturer When a en Manufacturer specific DTC is retrieved Aw Ro er the LCD display shows a list of vehicle manufacturers Use the UP A and DOWN buttons as necessary to highlight the appropriate manufacturer then press the ENTER button to display the correct code definition for your vehicle A confirmation message shows on the LCD display If the correct manufacturer is shown press the ENTER button to continue You have selected Acura If the correct manufacturer is not shown press the DTC SCROLL ves press E button to return to the list of En vehicle manufacturers Se If the manufacturer for your vehicle is not listed use the UP 8 and DOWN buttons as necessary to select Other manufacturer and press the ENTER button for additional DTC information Se If the definition for the currently displayed code is not available an Sessel advisory message shows on the OSDSSOD nur C Diagnostic Tool s LCD display P1639 Pome The DTC Definition is not 10 If more than one DTC was retrieved available please visit www innova com press and release the DTC SCROLL Wa button as necessary to view additional codes m Each time the DTC SCROLL F button is pressed and released the Diagnostic Tool will scroll and display the
9. Exhaust Gas Recirculation EGR Monitor The Exhaust Gas Recirculation EGR system helps reduce the formation of Oxides of Nitrogen during combustion Temperatures above 2500 F cause nitrogen and oxygen to combine and form Oxides of Nitrogen in the combustion chamber To reduce the formation of Oxides of Nitrogen combustion temperatures must be kept below 2500 F The EGR system recirculates small amounts of exhaust gas back into the intake manifold where it is mixed with the incoming air fuel mixture This reduces combustion temperatures by up to 500 F The computer determines when for how long and how much exhaust gas is recirculated back to the intake manifold The EGR Monitor performs EGR system function tests at preset times during vehicle operation The EGR Monitor is supported by both spark ignition vehicles and compression ignition vehicles The EGR Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory D Evaporative System EVAP Monitor OBD2 vehicles are equipped with a fuel Evaporative system EVAP that helps prevent fuel vapors from evaporating into the air The EVAP system carries fumes from the fuel tank to the engine where they are
10. if prompted the Toyota Lexus i j Hist DTC Enhanced menu displays Depending on es the protocol used to communicate with your Press FF M to exit vehicle the Toyota Lexus Enhanced menu provides options to view m Current DTCs History DTCs or Pending DTCs m Current DTCs Historical DTCs or Toyota Lexus Enhanced Readiness DTCs Historical DTCs 1 Use the UP and DOWN buttons keins DIE as necessary to highlight the desired option then press the ENTER button m A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs Toyota Lexus Enhanced j j i H Unable t tablish a link m lf the Diagnostic Tool fails to link to Wh the vehldie Verity the the vehicle s computer a Linking ignition is ON and press Failed message shows on the Diagnostic Tool s Display Verify the ignition is ON then press the ENTER button to continue 2 To read the display Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements m A visible e icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m The upper right hand corner of the display shows the number of the code currently being displayed the de total number of codes retrieved PO100 corrente Mass or Volume Air Flow m The Diagnostic Trouble Code DTC circuit and related code definition are shown in the lower section of the LCD display
11. the Enhanced Main Menu m To exit the enhanced mode press the FF M button The Diagnostic Tool returns to the OBD2 DTC screen Erasing SRS DTCs If you plan to take the vehicle to a Service Center for repair DO NOT erase the SRS DTCs from the vehicle s computer If the codes are erased valuable information that might help the technician troubleshoot the problem will be erased 52 1 With the Diagnostic Tool in SRS Mode gt see Reading SRS DTCs on page 51 for f details press the ERASE button Prasiigicirals ASRS DIGS Are you sure 2 A confirmation message shows on the NO E te eit LCD display OBD2 Using the Diagnostic Tool ERASING DIAGNOSTIC TROUBLE CODES DTCs m lf you are sure you want to proceed press the ERASE button to erase the SRS DTCs from the vehicle s computer m f you do not want to continue with the erase process press the FF M e button to exit the erase mode and return to the Enhanced Main Menu 3 If you chose to erase SRS DTCs a progress screen displays while the erase function is in progress Erase was successful Press the 2333 button to m f the erase was successful a relink ye module confirmation message shows on the LCD display Press the POWER LINK button to re link the Diagnostic Tool to the vehicle m lf the erase was not successful an advisory message shows on the Erase has failed _ LCD display Verify that the Verify the connection atte Diagnosti
12. 2002 2003 IS F 2008 ES 330 2004 2006 LS 430 2001 2006 ES 350 2007 2008 LS 460 2007 2008 GS 300 1998 2006 LS 600h 2008 GS 350 2007 2008 LX 470 2001 2007 GS 400 1998 2005 LX 570 2008 GS 430 1998 2006 RX 300 2001 2003 GS 450h 2007 2008 RX 330 2004 2006 GS 460 2008 RX 350 2007 2008 GX 470 2003 2008 RX 400h 2006 2008 IS 250 2006 2008 SC 430 2002 2008 IS 300 2001 2005 OBD2 81 Vehicle Applications SRS SCION Model Year Model Year TC 2005 2008 xB 2004 2008 xA 2004 2006 xD 2008 TOYOTA Model Year Model Year 4 Runner 2000 2008 MR2 2001 2005 Avalon 2000 2008 MR2 Spyder 2001 2005 Camry 2000 2008 Prius 2001 2008 Camry Solara 2004 2008 Rav4 2003 2008 Celica 2001 2005 Sequoia 2001 2008 Corolla 2000 2008 Sienna 1998 2008 FJ Cruiser 2007 2008 Tacoma 1996 2008 Highlander 2001 2008 Tundra 2000 2008 Land Cruiser 2000 2008 Yaris 2008 Matrix 2003 2008 82 OBD2 Glossary GLOSSARY OF TERMS AND ABBREVIATIONS GLOSSARY OF TERMS AND ABBREVIATIONS CARB California Air Resources Board CCM Central Control Module Computer Control System An electronic control system consisting of an on board computer and related sensors switches and actuators used to ensure peak performance and fuel efficiency while reducing pollutants in the vehicle s emissions DIY Do It Yourself DLC Data Link Connector Drive Cycle An extended set of driving procedur
13. 3 O2S Voltage O2S B1 S4 V X XXX Bank 1 Sensor 4 O2S B1 S4 mA X XXX Bank 1 Sensor 4 O2S Current mA 02S B1 S4 V V X XXX Bank 1 Sensor 4 O2S Voltage O2S B2 S1 V X XXX Bank 2 Sensor 1 O2S B2 S1 mA X XXX Bank 2 Sensor 1 O2S Current mA 02S B2 S1 V V X XXX Bank 2 Sensor 1 02S Voltage 02S B2 S2 V X XXX Bank 2 Sensor 2 O2S B2 S2 mA X XXX Bank 2 Sensor 2 O2S Current mA 02S B2 S2 V V X XXX Bank 2 Sensor 2 02S Voltage 02S B2 S3 V X XXX Bank 2 Sensor 3 O2S B2 S3 mA X XXX Bank 2 Sensor 3 O2S Current mA O2S B2 S3 V V X XXX Bank 2 Sensor 3 O2S Voltage 02S B2 S4 V X XXX Bank 2 Sensor 4 O2S B2 S4 mA X XXX Bank 2 Sensor 4 025 Current mA 02S B2 S4 V V X XXX Bank 2 Sensor 4 O2S Voltage O2S Location 02811 Oxygen Sensor Bank 1 Sensor 1 O2S Location i 02812 Oxygen Sensor Bank 1 Sensor 2 O2S Location 02S13 Oxygen Sensor Bank 1 Sensor 3 O2S Location 02814 Oxygen Sensor Bank 1 Sensor 4 O2S Location 02821 Oxygen Sensor Bank 2 Sensor 1 O2S Location 02522 Oxygen Sensor Bank 2 Sensor 1 O2S Location 02523 Oxygen Sensor Bank 2 Sensor 3 O2S Location i 02524 Oxygen Sensor Bank 2 Sensor 4 O2S Location 02811 Oxygen Sensor Bank 1 Sensor 1 O2S Location 02812 Oxygen Sensor Bank 1 Sensor 2 O2S Location S 02521 Oxygen Sensor Bank 2 Sensor 1 O2S Location i 02522 Oxygen Sensor Bank 2 Sensor 2 O2S Location 02831 Oxygen Sensor Bank 3 Sensor 1 O2S Location 02532 Oxygen Sensor Bank 3 Sensor 2 O2S Loca
14. DOWN buttons as necessary to highlight Vehicle Info then press the ENTER button m The Vehicle Info Menu displays 3 Use the UP and DOWN buttons as necessary to highlight Available Modules then press the ENTER Vehicle Info Menu 2 3 button 4 A One moment please message displays while the requested information Press FF M to exit is retrieved from the vehicle s computer 5 When the retrieval process is completed a complete list of modules supported by the vehicle under test is shown on the Diagnostic Tool s display Use the UP and DOWN buttons as necessary to view the entire list Available Modules Protocol ISO9141 Module 10 Press FF M to exit 6 When you have finished viewing the list of available modules press the FF M button to return to the Menu Viewing In use Performance Tracking IPT The Diagnostic Tool can retrieve In use Performance Tracking IPT statistics for monitors supported by the vehicle under test Two values are returned for each monitor the number of times that all conditions necessary for a specific monitor to detect a malfunction have been encountered XXXCOND and the number of times that the vehicle has been operated under the specific conditions for the monitor XXXCOMP Statistics are also provided for the number of times the vehicle has been operated in OBD monitoring conditions OBDCOND and the number of times the vehicle s engine has been
15. a different part of the engine or emissions system the Trip Drive Cycle needed for each individual Monitor to run and complete varies OBD2 15 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs m OBD2 Drive Cycle An OBD2 Drive Cycle is an extended set of driving procedures that takes into consideration the various types of driving conditions encountered in real life These conditions may include starting the vehicle when it is cold driving the vehicle at a steady speed cruising accelerating etc An OBD2 Drive Cycle begins when the ignition key is turned On when cold and ends when the vehicle has been driven in such a way as to have all the Enabling Criteria met for all its applicable Monitors Only those trips that provide the Enabling Criteria for all Monitors applicable to the vehicle to run and complete their individual diagnostic tests qualify as an OBD2 Drive Cycle OBD2 Drive Cycle requirements vary from one model of vehicle to another Vehicle manufacturers set these procedures Consult your vehicle s service manual for OBD2 Drive Cycle procedures Do not confuse a Trip Drive Cycle with an OBD2 Drive Cycle A Ir Trip Drive Cycle provides the Enabling Criteria for one specific Monitor to run and complete its diagnostic testing An OBD2 Drive Cycle must meet the Enabling Criteria for all Monitors on a particular vehicle to run and complete their diagnostic testing m Warm up
16. a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the O and buttons as necessary to view the additional information The Diagnostic Tool will display a code only if codes are present in the vehicles computer memory If no codes are present a No Enhanced DTC s are presently stored in the vehicles computer is displayed Press the FF M button to return to the Honda Acura Enhanced menu No Enhanced DTCs are presently stored in the vehicle s computer Press FF M to exit If more than one code was retrieved press the DTC SCROLL E button as necessary to display additional codes one at a time Whenever the Scroll function is used to view additional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again When the last retrieved DTC has been displayed and the DTC SCROLL button is pressed the Diagnostic Tool returns to the Honda Acura Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the FF M button The Diagnostic Tool returns to the OBD2 DTC screen OBD2 Using the Diagnostic Tool VIEWING ENHANCED DTCs Toyota Lexus Enhanced DTCs When the Diagnostic Tool enters the enhanced mode and Toyota Lexus is Toyota Lexus Enhanced selected
17. an Emissions Test Smog Check to be performed Other areas only require that some but not all Monitors have run their self diagnostic testing before an Emissions Test Smog Check may be performed From the code retrieval procedure determine the status of each Monitor a solid Monitor icon shows Monitor Has Run status a flashing Monitor icon indicates Has Not Run status Take this information to an emissions professional to determine based on your test results if your vehicle is ready for an Emissions Test Smog Check 3 RED LED Indicates there is a problem with one or more of the vehicle s Ae A CS D systems A vehicle displaying a red LED SO ESS male is definitely not ready for an Emissions P0743 Feier Test Smog Check The red LED is Torque Converter Clutch also an indication that there are Splengle Circuit Electrical Diagnostic Trouble Code s present displayed on the Diagnostic Tool s screen The Malfunction Indicator O Check Engine Lamp on the vehicle s instrument panel will light steady The problem that is causing the red LED to light must be repaired before an Emissions Test Smog Check can be performed It is also suggested that the vehicle be inspected repaired before driving the vehicle further If the Red LED was obtained there is a definite problem present in the system s In these cases you have the following options m Repair the vehicle yourself If you are going to perform the repairs
18. board diagnostic system capable of addressing all of these problems was needed This new system is known as On Board Diagnostics Generation Two OBD2 The primary objective of the OBD2 system is to comply with the latest regulations and emissions standards established by CARB and the EPA The Main Objectives of the OBD2 System are m To detect degraded and or failed emissions related components or systems that could cause tailpipe emissions to exceed by 1 5 times the Federal Test Procedure FTP standard m To expand emissions related system monitoring This includes a set of computer run diagnostics called Monitors Monitors perform diagnostics and testing to verify that all emissions related components and or systems are operating correctly and within the manufacturer s specifications m To use a standardized Diagnostic Link Connector DLC in all vehicles Before OBD2 DLCs were of different shapes and sizes m To standardize the code numbers code definitions and language used to describe faults Before OBD2 each vehicle manufacturer used their own code numbers code definitions and language to describe the same faults m To expand the operation of the Malfunction Indicator Lamp MIL m To standardize communication procedures and protocols between the diagnostic equipment Scan Tools Code Readers etc and the vehicle s on board computer OBD2 Terminology The following terms and their definitions are related
19. button See A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs m lf the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the Diagnostic Tool s display GM Isuzu Enhanced E d ianiti j Unable t tablish a link Verify the ignition is ON then press with the vehicle Verify the the ENTER CH button to continue ignition is ON and press 2 To read the display Refer to DISPLAY FUNCTIONS Cr on page 8 for a description of LCD display elements m A visible icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m The upper right hand corner of the display shows the number of the 2 OL code currently being displayed the bi total number of codes retrieved P1250 Current m The Diagnostic Trouble Code DTC an control and related code definition are shown in the lower section of the LCD display IM MONITOR STATUS icons are not displayed when viewing enhanced DTCs In the case of long code definitions or when viewing SS Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the A and buttons as necessary to view the additional information OBD2 Using the Diagnostic Tool m The Diagnostic Tool will display a code only if codes are present in the vehicle s compu
20. computers memory Se To turn the Diagnostic Tool On you must press and hold the 5 OBD2 POWER LINK button for approximately 3 seconds FF M button When pressed while linked to a vehicle places the Diagnostic Tool in Test Mode Three options are available Freeze Frame Vehicle Info and Tool Settings Diagnostic Tool Controls DISPLAY FUNCTIONS 6 10 11 12 DOWN button When in MENU mode scrolls DOWN through the menu and submenu selection options When LINKED to a vehicle scrolls DOWN through the current display screen to display any additional data UP button When in MENU mode scrolls UP through the menu and submenu selection options When LINKED to a vehicle scrolls UP through the current display screen to display any additional data GREEN LED Indicates that all engine systems are running normally all Monitors on the vehicle are active and performing their diagnostic testing and no DTCs are present YELLOW LED Indicates there is a possible problem A Pending DTC is present and or some of the vehicle s emission monitors have not run their diagnostic testing RED LED Indicates there is a problem in one or more of the vehicle s systems The red LED is also used to show that DTC s are present DTCs are shown on the Diagnostic Tool s display In this case the Malfunction Indicator Check Engine lamp on the vehicle s instrument panel will light steady
21. is present in the vehicle s computer the repair was unsuccessful Refer to the vehicle s service manual and recheck repair procedures 59 Additional Tests VIEWING FREEZE FRAME DATA VIEWING FREEZE FRAME DATA In OBD2 systems when an emissions related engine malfunction occurs that causes a DTC to set a record or snapshot of engine conditions at the time that the malfunction occurred is also saved in the vehicle s computer memory The record saved is called Freeze Frame data 1 While linked to the vehicle press and release the FF M button m The Test Mode menu displays Test Mode 1 3 2 Use the UP and DOWN buttons Vehicle Info Tool Settings as necessary to highlight View Freeze Frame then press the ENTER button Press FF M to exit m The Freeze Frame screen displays gt I M MONITOR STATUS m Saved engine conditions include but BOOS ODES anu are not limited to engine speed P1639 open or closed loop operation fuel system commands coolant tem Calc Load perature calculated load value fuel sale pressure vehicle speed air flow rate and intake manifold pressure If more than one malfunction is present that causes more I than one DTC to be set only the code with the highest priority will contain Freeze Frame data The code designated 01 on the Diagnostic Tool s display is referred to as the PRIORITY code and Freeze Frame data always refers to th
22. on Display Displays settings Menu and submenus test results Diagnostic Tool functions and Monitor status information See DISPLAY FUNCTIONS following for more details CABLE Connects the Diagnostic Tool to the vehicle s Data Link Connector DLC DISPLAY FUNCTIONS 11 12 13 NEE NANA I M MONITOR STATUS Cite p gt a 2 BEOOSOGC vow ns a 7 1P0743 our Ga 1 Torque Converter Clutch x Solenoid Circuit Electrical Figure 2 Display Functions See Figure 2 for the locations of items 1 through 14 following 1 1 M MONITOR STATUS field Identifies the UM Monitor status area OBD2 10 11 12 13 OBD2 Diagnostic Tool Controls DISPLAY FUNCTIONS Monitor icons Indicate which Monitors are supported by the vehicle under test and whether or not the associated Monitor has run its diagnostic testing Monitor status When a Monitor icon is solid it indicates that the associated Monitor has completed its diagnostic testing When a Monitor icon is flashing it indicates that the vehicle supports the associated Monitor but the Monitor has not yet run its diagnostic testing gt Vehicle icon Indicates whether or not the Diagnostic Tool is being properly powered through the vehicle s Data Link Connector DLC A visible icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector ab Link icon Indicates whether or not the Diagnostic Tool is commun
23. open loop and closed loop The vehicle operates in open loop when the engine is cold before it reaches normal operating temperature The vehicle also goes to open loop mode at other times such as heavy load and full throttle conditions When the vehicle is running in open loop the oxygen sensor signal is ignored by the computer for air fuel mixture corrections Engine efficiency during open loop operation is very low and results in the production of more vehicle emissions Closed loop operation is the best condition for both vehicle emissions and vehicle operation When the vehicle is operating in closed loop the computer uses the oxygen sensor signal for air fuel mixture corrections In order for the computer to enter closed loop operation the oxygen sensor must reach a temperature of at least 600 F The oxygen sensor heater helps the oxygen sensor reach and maintain its minimum operating temperature 600 F more quickly to bring the vehicle into closed loop operation as soon as possible The Oxygen Sensor Heater Monitor is supported by spark ignition vehicles only The Oxygen Sensor Heater Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory
24. sup ported on most Chrysler Jeep ve hicles manufactured prior to 2002 40 Chrysler Jeep Enhanced Engine DICs Transmission DTCs Press FF M to exit OBD2 Using the Diagnostic Tool VIEWING ENHANCED DTCs A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs Chrysler Jeep Enhanced m If the Diagnostic Tool fails to link to Se E link the vehicle s computer a Linking ignition is ON and press Failed message shows on the Diagnostic Tool s display Verify the ignition is ON then press the ENTER button to continue 2 To read the display Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements m A visible oe icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m The upper right hand corner of the display shows the number of the DL code currently being displayed the ne total number of codes retrieved P1250 awe Vacuum reservoir control m The Diagnostic Trouble Code DTC circuit open and related code definition are shown in the lower section of the LCD display Se I M MONITOR STATUS icons are not displayed when viewing enhanced DTCs In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the Gi
25. the word PENDING on the Diagnostic Tool s display UM READINESS B MONITOR NOT RUN STATUS If the Diagnostic Tool s display shows E 00 serio gt PEOOOLGO a zero indicating there are no GeGsOoe H DTC s present in the vehicle s Freeze Frame data presenti computer memory but the yellow stored in the vehicle s LED is illuminated it may be an button to view your indication that some of the Enhanced DTCs Monitors supported by the vehicle have not yet run and completed their diagnostic testing Check the Diagnostic Tool s display for confirmation All Monitor icons that are blinking have not yet run and completed their diagnostic testing all Monitor icons that are solid have run and completed their diagnostic testing Red LED Indicates there is a roblem with one or more of the EST SC systems The red LED is III mele also used to indicate that DTC s P0743 Seno are present displayed on the Torque Converter Clutch Diagnostic Tool s screen In this case the Malfunction Indicator Check Engine lamp on the vehicle s instrument panel will be illuminated DTC s that start with PO P2 and some P3 are considered Generic Universal All Generic DTC definitions are the same on all OBD2 equipped vehicles The Diagnostic Tool automatically displays the code definitions if available for Generic DTC s Solenoid Circuit Electrical 36 OBD2 Using the Diagnostic Tool
26. the condition exists If the condition that caused the MIL to flash is no longer present the MIL will light steady On A DTC is saved in the computer s memory for later retrieval A Freeze Frame of the conditions present in the engine or emissions system when the MIL was ordered On is saved in the Computers memory for later retrieval This information shows fuel system status closed loop or open loop engine load coolant temperature fuel trim value MAP vacuum engine RPM and DTC priority When a Type B DTC is found on the First Trip the following events take place m The computer sets a Pending DTC but the MIL is not ordered On Freeze Frame data may or may not be saved at this time depending on manufacturer The Pending DTC is saved in the computer s memory for later retrieval m If the failure is found on the second consecutive trip the MIL is ordered On Freeze Frame data is saved in the Computers memory m If the failure is not found on the second Trip the Pending DTC is erased from the computer s memory The MIL will stay lit for both Type A and Type B codes until one of the following conditions occurs 18 OBD2 Onboard Diagnostics OBD2 MONITORS m f the conditions that caused the MIL to light are no longer present for the next three trips in a row the computer automatically turns the MIL Off if no other emissions related faults are prese
27. the self diagnosis and testing of its assigned engine system it means the Monitor HAS NOT RUN The Monitor Run Not Run status does not show whether gr or not a problem exists in a system Monitor status only indicates whether a particular Monitor has or has not run and performed the self diagnosis and testing of its associated system Performing I M Readiness Quick Check When a vehicle first comes from the factory all Monitors indicate a HAVE RUN status This indicates that all Monitors have run and completed their diagnostic testing The HAVE RUN status remains in the computer s memory unless the Diagnostic Trouble Codes are erased or the vehicle s computer memory is cleared The Diagnostic Tool allows you to retrieve Monitor System Status Information to help you determine if the vehicle is ready for an Emissions Test Smog Check In addition to retrieving Diagnostic Trouble Codes the Diagnostic Tool also retrieves Monitor Run Not Run status This information is very important since different areas of the state country have different emissions laws and regulations concerning Monitor Run Not Run status Before an Emissions Test Smog Check can be performed your vehicle must meet certain rules requirements and procedures legislated by the Federal and state country governments where you live 56 OBD2 Using the Diagnostic Tool I M READINESS TESTING 1 In most areas one of the requirements that must b
28. transmission Block the drive wheels with suitable blocks Connecting or disconnecting test equipment when the ignition is ON can damage test equipment and the vehicle s electronic components Turn the ignition OFF before connecting the Diagnostic Tool to or disconnecting the Diagnostic Tool from the vehicle s Data Link Connector DLC OBD2 3 Safety Precautions SAFETY FIRST To prevent damage to the on board computer when taking vehicle electrical measurements always use a digital multimeter with at least 10 megOhms of impedance Fuel and battery vapors are highly flammable To prevent an explosion keep all sparks heated items and open flames away from the battery and fuel fuel vapors DO NOT SMOKE NEAR THE VEHICLE DURING TESTING Don t wear loose clothing or jewelry when working on an engine Loose clothing can become caught in the fan pulleys belts etc Jewelry is highly conductive and can cause a severe burn if it makes contact between a power source and ground OBD2 About the Diagnostic Tool VEHICLES COVERED VEHICLES COVERED The Enhanced OBD2 Diagnostic Tool is designed to work on all OBD2 compliant vehicles All 1996 and newer vehicles cars and light trucks sold in the United States are OBD2 compliant Federal law requires that all 1996 and newer cars and light SP trucks sold in the United States must be OBD2 compliant this includes all Domestic Asian and European vehicles Some 1
29. yourself proceed by reading the vehicle service manual and following all its procedures and recommendations m Take the vehicle to a professional to have it serviced The problem s causing the red LED to light must be repaired before the vehicle is ready for an Emissions Test Smog Check Using the I M Readiness Monitor Status to Confirm a Repair The I M Readiness Monitor Status function can be used after repair of a fault has been performed to confirm that the repair has been performed correctly and or to check for Monitor Run Status Use the following procedure to determine I M Readiness Monitor Status 58 OBD2 OBD2 Using the Diagnostic Tool I M READINESS TESTING Using retrieved Diagnostic Trouble Codes DTCs and code definitions as a guide and following manufacturer s repair procedures repair the fault or faults as instructed After the fault or faults have been repaired connect the Diagnostic Tool to the vehicle s DLC and erase the code or codes from the vehicle s computer memory m See page 53 for procedures for ERASING DIAGNOSTIC TROUBLE CODES DTCs from the vehicle s on board computer m Write the codes down on a piece of paper for reference before erasing After the erase procedure is performed most of the Monitor icons on the Diagnostic Tool s display will be flashing Leave the Diagnostic Tool connected to the vehicle and perform a Trip Drive Cycle for each flashing Monitor Misfire Fu
30. 02 2008 Renegade Grand Cherokee 1999 2008 Liberty Sport 2002 2008 Laredo Grand Cherokee 1999 2008 Patriot 2007 2008 Limited Grand Cherokee 1999 2008 Wrangler 2007 2008 SE Grand Cherokee 1999 2008 Sport OBD2 73 Vehicle Applications ABS Ford FORD Model Year Model Year Crown Victoria 1996 2008 F 250 1997 2008 w o traction w 4 wheel ABS control E 150 2000 2007 F 350 1997 2008 w 4 wheel ABS E 250 2000 2007 Five Hundred 2005 2007 E 350 2000 2007 Focus 2000 2008 Edge 2007 2008 Freestar 2004 2007 Escape 2001 2008 Fusion 2006 2008 Escort 1997 2003 Mustang w o 1996 2008 traction control Excursion 2000 2005 Ranger w o 1996 2008 traction control Expedition 1997 2008 Taurus w o 1996 2008 w 4 wheel ABS traction control Explorer w o 1996 2008 Taurus X w o 1996 2008 traction control traction control Explorer Sport 1996 2008 Windstar 1996 2003 w o traction control Explorer Sport 1996 2008 Zephyr 2006 2007 Trac w o traction control F 150 1997 2008 Zephyr MKZ 2006 2007 w 4 wheel ABS LINCOLN Model Year Model Year Aviator 2003 2005 Mark VIII 1997 1998 Blackwood 2002 2003 MKX 2007 2008 Continental 1996 2002 MKZ 2007 2008 LS 2002 2006 Navigator 1998 2008 Mark LT 2006 2008 Town Car 1996 2008 MERCURY Model Year Model Year Contour 1996 2000 Montego 2005 2007 Cougar 1999 2002 Mountaineer 199
31. 08 Canyon 2004 2008 Sierra 1500 2003 2008 Envoy 2000 2008 Sierra 2500 2003 2008 Envoy XL 2000 2008 Sierra 3500 2003 2008 Jimmy 1999 2005 Sierra Denali 2003 2008 K1500 1999 2008 Sonoma 1996 2004 K2500 1999 2008 Yukon 1999 2008 K3500 1999 2008 Yukon XL 1999 2008 HUMMER Model Year Model Year H2 2003 2007 OLDSMOBILE Model Year Model Year Achieva 1996 1998 Cutlass 1997 1999 Alero 1999 2004 Intrigue 1998 2002 Aurora 1996 2003 LSS 1996 1999 Bravada 1996 2004 Silhouette 1999 2004 80 OBD2 Vehicle Applications SRS PONTIAC Model Year Model Year Aztek 2001 2005 Grand Am 1996 2005 Bonneville 2000 2005 Grand Prix 1996 2008 Bonneville SE 2000 2005 GTO 2004 2006 Bonneville SLE 2000 2005 Montana 1999 2005 Bonneville SSEi 2000 2005 Montana SV6 2005 2007 Firebird 1996 2002 Solstice 2006 2008 G5 2007 2008 Sunfire 2000 2005 G6 2005 2008 Torrent 2006 2008 G8 2008 Vibe 2003 2006 SRS APPLICATIONS IMPORT Honda ACURA Model Year Model Year CL 1997 1999 RSX 2002 2006 MDX 2001 2008 SLX 2004 2008 NSX 1996 2005 TSX 2003 2008 RDX 2007 2008 HONDA Model Year Model Year Accord 1996 2008 Odyssey 1996 2008 Civic 2001 2007 Pilot 2003 2008 CR V 1997 2008 Prelude 1996 2001 Element 2003 2008 2000 2000 2008 Fit 2007 2008 Toyota LEXUS Model Year Model Year 400h 2006 2008 IS 350 2006 2008 ES 300
32. 7 2008 Grand Marquis 1996 2008 Mystique 1996 2000 Marauder 2003 2004 Sable 1996 2008 Mariner 2006 2008 Tracer 1997 1999 Milan 2006 2008 74 OBD2 Vehicle Applications ABS GM BUICK Model Year Model Year Century 1998 2005 Regal 1998 2004 LaCrosse 2005 2008 Rendezvous 2002 2005 LeSabre 2000 2005 Skylark 1998 Park Avenue 1997 2005 Terraza 2005 2007 Rainier 2004 2005 CADILLAC Model Year Model Year CTS 2003 2008 Escalade 2000 2008 DeVille 1997 2005 Seville 1997 2004 DTS 2006 2008 SRX 2004 2008 Eldorado 1997 2002 XLR 2004 2005 CHEVROLET Model Year Model Year Astro 1999 2005 K2500 2000 2003 Avalanche 2002 2006 K3500 2000 2003 Aveo 2004 2008 Lumina 2001 Blazer 1996 2005 Malibu 1997 2008 C1500 2000 2003 Malibu Classic 2004 2008 C2500 2000 2003 S 10 1996 2004 C3500 2000 2003 Silverado 1500 2000 2005 Camaro 1999 2002 Silverado 2500 2000 2005 Cavalier 1996 2005 Silverado 3500 2000 2005 Cobalt 2005 2008 SSR 2003 2006 Colorado 2004 2005 Tracker 1999 2004 Corvette 1997 2008 Trailblazer 2002 2005 Equinox 2005 2008 Trailblazer EXT 2002 2005 Express 2003 2006 Uplander 2005 2008 Impala 2000 2005 Venture 2000 2005 K1500 2000 2003 GMC Model Year Model Year Arcadia 2006 2008 Safari 1999 2005 C1500 2000 2003 Savana 2003 2007 C2500 2000 2003 Sierra 2003 2008 C3500 2000 2003 Sierra 1500 2003 2008 Ca
33. 994 and 1995 vehicles are OBD2 compliant To find out if a 1994 or 1995 vehicle is OBD2 compliant check the following 1 The Vehicle Emissions Control Information VECI Label This label is located under the hood or by the radiator of most vehicles If the vehicle is OBD2 compliant the label will state OBD Il Certified VEHICLE EMISSION CONTROL INFORMATION ENGINE FAMILY EFN2 6YBT2BA OBD II DISPLACEMENT 2 6L CERTIFIED o VEHICLE THIS VEHICLE CONFORMS TO U S EPA AND STATE 4 MANUFACTURER OF CALIFORNIA REGULATIONS APPLICABLE TO 1999 MODEL YEAR NEW TLEV PASSENGER CARS OB D Il REFER TO SERVICE MANUAL FOR ADDITIONAL INFORMATION TUNE UP CONDITIONS NORMAL OPERATING ENGINE TEMPERATURE C ERTI Fl E D ACCESSORIES OFF COOLING FAN OFF TRANSMISSION IN NEUTRAL EXHAUST EMISSIONS STANDARDS STANDARD CATEGORY CERTIFICATION TLEV IN USE TLEV INTERMEDIATE re CATALYST lll GAP 1 1MM 2 Government Regulations require that all OBD2 compliant vehicles must have a O1 12 345 elrls common sixteen pn Data Link ee Connector DLC Some 1994 and 1995 vehicles have 16 pin connectors but are Se not OBD2 compliant Only those vehicles with a Vehicle Emissions Control Label stating OBD Il Certified are OBD2 compliant Data Link Connector DLC Location The 16 pin DLC is usually located under the instrument panel dash within 12 inches 300 mm of center of t
34. 999 2001 Magnum 2005 2008 Stratus Sedan 1999 2006 Neon 2000 2005 Viper 1999 2007 JEEP Model Year Model Year Commander 2006 2008 Liberty Limited 2007 2008 Compass 2007 2008 Liberty 2007 2008 Renegade Grand Cherokee 1999 2008 Liberty Sport 2007 2008 Grand Cherokee 1999 2008 Patriot 2007 2008 Laredo Grand Cherokee 1999 2008 Patriot Limited 2007 2008 Limited Grand Cherokee 1999 2008 Patriot Sport 2007 2008 SE Grand Cherokee 1999 2008 Wrangler 2007 2008 Sport Liberty 2007 2008 78 OBD2 Vehicle Applications SRS Ford FORD Model Year Model Year Contour 1996 2000 F 250 1997 2008 Crown Victoria 1996 2008 F 350 1997 2008 E 150 1996 2008 Five Hundred 2000 2007 E 250 1996 2008 Focus 2000 2008 E 350 1996 2008 Freestar 2004 2007 Edge 2007 2008 Fusion 2006 2008 Escape 2001 2008 Mustang 1996 2008 Escort 1996 2003 Ranger 1996 2008 Excursion 2000 2005 Taurus 1996 2008 Expedition 1997 2008 Tempo 1990 1992 Explorer 1996 2008 Thunderbird 1996 2005 Explorer Sport 1996 2008 Windstar 1996 2003 Explorer 1996 2008 ZX2 2001 2003 SportTrac F 150 1997 2008 LINCOLN Model Year Model Year Aviator 2003 2005 MKX 2007 2008 Blackwood 2002 2003 MKZ 2007 2008 Continental 1996 2002 Navigator 1998 2008 LS 2002 2006 Town Car 1998 2008 Mark LT 2006 2008 Zephyr 2006 2007 Mark VIII 1996 1998 Zephyr MKZ 2006 2007 2006 MERCURY Model Year Mode
35. Actuators are output devices They perform actions in response to commands received from the computer The on board computer receives information inputs from sensors and switches located throughout the engine These devices monitor critical engine conditions such as coolant temperature engine speed engine load throttle position air fuel ratio etc The computer compares the values received from these sensors with its preset reference values and makes corrective actions as needed so that the sensor values always match the preset reference values for the current driving condition The computer makes adjustments by commanding other devices such as the fuel injectors idle air control EGR valve or Ignition Module to perform these actions TYPICAL COMPUTER OUTPUT DEVICES CONTROL SYSTEM Fuel Injectors Idle Air Control EGR Valve Ignition Module A BANN On Board Computer INPUT DEVICES Coolant Temperature Sensor Throttle Position Sensor Fuel Injectors INPUT DEVICES Oxygen Sensors 12 OBD2 Onboard Diagnostics COMPUTER ENGINE CONTROLS Vehicle operating conditions are constantly changing The computer continuously makes adjustments or corrections especially to the air fuel mixture and spark timing to keep all the engine systems operating within the preset reference values On Board Diagnostics First Generation OBD1 With the exception of some 1994 and 1995 vehicles most vehicles from 1982 to 1995 are equipp
36. Cs Select Enhanced DTCs from the Enhanced Main Menu then choose the appropriate manufacturer if prompted Refer to VIEWING ENHANCED DTCs on page 40 to view enhanced DTCs for your vehicle To view ABS DTCs Select ABS DTCs from the Enhanced Main Menu then choose the appropriate manufacturer H prompted Refer to VIEWING ABS DTCs on page 48 to view ABS DTCs for your vehicle To view SRS DTCs Select SRS DTCs from the Enhanced Main Menu then choose the appropriate manufacturer H prompted Refer to VIEWING SRS DTCs on page 51 to view SRS DTCs for your vehicle VIEWING ENHANCED DTCs Enhanced Menu 1 3 View ABS DTCs View SRS DTCs Press FF M to exit Enhanced Menu 2 3 View Enhanced DTCs View SRS DTCs Press FF M to exit Enhanced Menu 3 3 View Enhanced DTCs View ABS DTCs Press FF M to exit Refer to the appropriate paragraph to view enhanced data for your vehicle m Chrysler Jeep iii Ford Mazda sa GM ISUZU Honda Acura Toyota Lexus Chrysler Jeep Enhanced DTCs When the Diagnostic Tool enters the page 40 page 42 page 44 page 45 page 46 enhanced mode and Chrysler Jeep is selected if prompted the Chrysler Enhanced menu displays You may view either Engine DTCs or Transmission DTCs 1 Use the UP and DOWN buttons as necessary to highlight the desired option then press the ENTER button Transmission DTCs are not
37. Cs were retrieved and View ABS DTCs View SRS DTCs or View Enhanced DTCs is selected tre E vehicles H the Select Manufacturer screen Geesse displays Use the UP and DOWN buttons as necessary to highlight the appropriate manufacturer then press the ENTER CH button to view the selected information If the manufacturer of the vehicle from which codes were retrieved Enhanced DIES are available for the following vehicles is not listed press the FF M EI button to retum to the OBD2 Nee erry DTC screen Enhanced data is not available for your vehicle m f a Manufacturer specific DTC was retrieved and the manufacturer selected for the code was Chrysler Jeep Ford ES Mazda General Motors Isuzu Honda gedd Acura Toyota or Lexus the Select Data menu displays as appropriate Use the a E ress FF M to exit UP and DOWN buttons as necessary to highlight the desired option the press the ENTER button to view the selected information or press the FF M button to return to the OBD2 DTC screen OBD2 39 Using the Diagnostic Tool VIEWING ENHANCED DTCs m f a Manufacturer specific DTC was retrieved and the manufacturer selected for the code was not Chrysler Jeep Ford Mazda General Motors Isuzu Honda Acura Toyota or Lexus the enhanced mode is bypassed and the OBD2 DTC screen shows the first code retrieved Enhanced data is not available for your vehicle To view Enhanced DT
38. Cycle Vehicle operation after an engine off period where engine temperature rises at least 40 F 22 C from its temperature before starting and reaches at least 160 F 70 C The PCM uses warm up cycles as a counter to automatically erase a specific code and related data from its memory When no faults related to the original problem are detected within a specified number of warm up cycles the code is erased automatically DIAGNOSTIC TROUBLE CODES DTCs Diagnostic Trouble Codes DTCs are meant to guide you to the proper Diagnostic Trouble service procedure in the vehicle s Codes DTCs are service manual DO NOT replace parts codes that identify a based only on DTCs without first specific problem area consulting the vehicle s service manual for proper testing procedures for that particular system circuit or component DTCs are alphanumeric codes that are used to identify a problem that is present in any of the systems that are monitored by the on board computer PCM Each trouble code has an assigned message that identifies the circuit component or system area where the problem was found OBD2 diagnostic trouble codes are made up of five characters m The 1st character is a letter It identifies the main system where the fault occurred Body Chassis Powertrain or Network m The 2nd character is a numeric digit It identifies the type of code Generic or Manufacturer Specific Generic DTCs are code
39. DIGITAL AZ Can Ef Diagnostic Tool OWNER S MANUAL The Easiest And Best Way To Troubleshoot 1996 and Newer OBD2 Vehicles Table of Contents INTRODUCTION WHAT IS OB 1 YOU GAN DOTT siii Eege 2 SAFETY PRECAUTIONS SAFETY RIES incendi 3 ABOUT THE DIAGNOSTIC TOOL VEHIGLES COVERED icp AAA GARA Ri 5 BATTERY REPLACEMENT iii 6 DIAGNOSTIC TOOL CONTROLS CONTROLS AND INDICATORS iii 7 DISPLAY FUNCTIONS 8 ONBOARD DIAGNOSTICS COMPUTER ENGINE CONTROLS ccccccccciconinnninoniononioninnonanonannans 11 DIAGNOSTIC TROUBLE CODES DTCs 16 OBD2 MONITORS 2 ENEE 19 PREPARATION FOR TESTING PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET 28 BEFORE YOU BEGIN wesen 31 VEHICLE SERVICE MANUALS iii 32 USING THE DIAGNOSTIC TOOL CODE RETRIEVAL PROCEDURE ii 33 THE ENHANCED MAIN MENU 39 VIEWING ENHANCED DTCS iii 40 VIEWING ABS DT S cuina rai 48 VIEWING SRS DTCS AAA 51 ERASING DIAGNOSTIC TROUBLE CODES DTOs 53 IM READINESS TESTING ii 55 ADDITIONAL TESTS VIEWING FREEZE FRAME DATA 60 VIEWING VEHICLE INFORMATION 60 ADJUSTMENTS AND SETTINGS eneemnenen 63 GENERIC GLOBAL OBD2 PID LIST in 68 VEHICLE APPLICATIONS ABS ABS APPLICATIONS DOMESTIC iii 73 ABS APPLICATIONS IMPORT coccccoconioniconionioniniocinconicnocinconinianas 76
40. ENTER button m A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs m lf the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the Diagnostic Tool s display Verify the ignition is ON then press the ENTER button to continue OBD2 Honda Acura Enhanced Select and Press Confirmed DTCs Temporary DTCs Press FF M to exit Honda Acura Enhanced Select and Press Confirmed DICs Pending DTCs Press FF M to exit Honda Acura Enhanced Unable to establish a link with the vehicle Verify the ignition is ON and press 45 Using the Diagnostic Tool VIEWING ENHANCED DTCs 46 2 Toread the display Refer to DISPLAY FUNCTIONS on page 8 for a description of 3 LCD display elements m A visible e icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display viewing enhanced DTCs E P1456 Honda 90 01 Permanent EVAP Emission Control System Leak Detected Fuel Tank System IM MONITOR STATUS icons are not displayed when In the case of long code definitions or when viewing Freeze Frame data
41. Testing BEFORE YOU BEGIN BEFORE YOU BEGIN The Enhanced OBD2 Diagnostic Tool aids in monitoring electronic and emissions related faults in your vehicle and retrieving fault codes related to malfunctions in these systems Mechanical problems such as low oil level or damaged hoses wiring or electrical connectors can cause poor engine performance and may also cause a fault code to set Fix any known mechanical problems before performing any test See your vehicle s service manual or a mechanic for more information Check the following areas before starting any test m Check the engine oil power steering fluid transmission fluid if applicable engine coolant and other fluids for proper levels Top off low fluid levels if needed m Make sure the air filter is clean and in good condition Make sure all air filter ducts are properly connected Check the air filter ducts for holes rips or cracks m Make sure all engine belts are in good condition Check for cracked torn brittle loose or missing belts m Make sure mechanical linkages to engine sensors throttle gearshift position transmission etc are secure and properly connected See your vehicle s service manual for locations m Check all rubber hoses radiator and steel hoses vacuum fuel for leaks cracks blockage or other damage Make sure all hoses are routed and connected properly m Make sure all spark plugs are clean and in good condition Check for
42. URE CODE RETRIEVAL PROCEDURE Retrieving and using Diagnostic Trouble Codes DTCs for troubleshooting vehicle operation is only one part of an overall diagnostic strategy Never replace a part based only on the DTC definition Each DTC has a set of testing procedures instructions and flow charts that must be followed to confirm the location of the problem This information is found in the vehicle s service manual Always refer to the vehicle s service manual for detailed testing instructions Check your vehicle thoroughly before performing Sr any test See BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety precautions whenever working on a vehicle See SAFETY PRECAUTIONS on page 3 for more information 1 Turn the ignition off 2 Locate the vehicle s 16 pin Data Link Connector DLC See page 5 for connector location Se Some DLCs have a plastic cover that must be removed before connecting the Diagnostic Tool cable connector If the Diagnostic Tool is ON turn it SP OFF by pressing the POWER LINK button BEFORE connecting the Diagnostic Tool to the DLC 3 Connect the Diagnostic Tool cable connector to the vehicle s DLC The cable connector is keyed and will only fit one way m If you have problems connecting the cable connector to the DLC rotate the connector 180 and try again m If you still have problems check the DLC on the vehicle and on the Diagnostic Tool Refer to yo
43. VEHICLE APPLICATIONS SRS SRS APPLICATIONS DOMESTIC iii 78 SRS APPLICATIONS IMPORT 81 GLOSSARY GLOSSARY OF TERMS AND ABBREVIATIONS 83 WARRANTY AND SERVICING LIMITED ONE YEAR WARRANTY ee 85 SERVICE PROCEDURES vrea ttar ers 85 i OBD2 Introduction WHAT IS OBD WHAT IS OBD The Enhanced OBD2 Diagnostic Tool is designed to work on all OBD2 compliant vehicles All 1996 and newer vehicles cars light trucks and SUVs sold in the United States are OBD2 compliant One of the most exciting improvements in the automobile industry was the addition of on board diagnostics OBD on vehicles or in more basic terms the computer that activates the vehicle s CHECK ENGINE light OBD1 was designed to monitor manufacturer specific systems on vehicles built from 1981 to 1995 Then came the development of OBD2 which is j on all 1996 cars and light trucks sold in the U S Like its predecessor OBD2 was adopted as part of a government mandate to lower vehicle emissions But what makes OBD2 unique is its universal application for all late model cars and trucks domestic and import This sophisticated program in the vehicle s main computer system is designed to detect failures in a range of systems and can be accessed through a universal OBD2 port which is usually found under the dashboard For all OBD systems if a problem is found the computer turns on the CHECK ENGINE
44. Version 1 Use the UP and DOWN buttons as necessary to highlight Firmware Version in the Menu then press the ENTER button m The Firmware Version screen displays m The screen shows the Diagnostic Tool s current firmware version Press the ENTER button to return to the Menu Selecting the Display Language 1 Use the UP and DOWN buttons as necessary to highlight Select Language in the Menu then press the ENTER button m The Select Language screen dis plays Tool Setting Menu 5 7 Audible Tone Display Backlight DTC Librar Press FF M to exit Firmware Version v1 00 00 Press FF M to exit Tool Setting Menu 6 7 Display Backlight DTC Library Firmware Version Press FF M to exit OBD2 Additional Tests ADJUSTMENTS AND SETTINGS m The currently selected display Language is highlighted 2 Press the UP or DOWN button as necessary to highlight the desired display language When the desired display language is highlighted press the ENTER button to save your changes and return to the Language Espanol Francais Press FF M to exit Menu shown in the selected display language Setting the Unit of Measurement 1 Use the UP and DOWN buttons as necessary to highlight Unit of Measurement in the Menu then press the ENTER button Press the UP or DOWN button as necessary to highlight the desired Unit of Me
45. Y FIRST SAFETY FIRST To avoid personal injury instrument damage and or damage to your vehicle do not use the OBD2 Diagnostic Tool before reading this manual This manual describes common test procedures used by experienced service technicians Many test procedures require precautions to avoid accidents that can result in personal injury and or damage to your vehicle or test equipment Always read your vehicle s service manual and follow its safety precautions before and during any test or service procedure ALWAYS observe the following general safety precautions When an engine is running it produces carbon monoxide a toxic and poisonous gas To prevent serious injury or death from carbon monoxide poisoning operate the vehicle ONLY in a well ventilated area To protect your eyes from propelled objects as well as hot or caustic liquids always wear approved safety eye protection When an engine is running many parts such as the coolant fan pulleys fan belt etc turn at high speed To avoid serious injury always be aware of moving parts Keep a safe distance from these parts as well as other potentially moving objects Engine parts become very hot when the engine is running To prevent severe burns avoid contact with hot engine parts Before starting an engine for testing or troubleshooting make sure the parking brake is engaged Put the transmission in park for automatic transmission or neutral for manual
46. agnostic Tool s memory and may be viewed at any time by turning the unit On If the Diagnostic Tool s batteries are removed or if the Diagnostic Tool is re linked to a vehicle to retrieve codes data any prior codes data in its memory are automatically cleared OBD2 Using the Diagnostic Tool THE ENHANCED MAIN MENU THE ENHANCED MAIN MENU Following the code retrieval procedure see CODE RETRIEVAL PROCEDURE on page 33 when the last retrieved DTC has been displayed and the DTC SCROLL button is pressed the Diagnostic Tool enters the enhanced mode The enhanced mode provides the ability to retrieve enhanced DTCs from most Chrysler Jeep Ford Mazda GM Isuzu Honda Acura and Toyota Lexus vehicles The types of enhanced data available depends on the vehicle make You can also retrieve Anti Lock Brake System ABS DTCs and Supplemental Restraint System SRS DTCs The screen shown when the Diagnostic Tool enters the enhanced mode depends on the type s of DTC s returned during the code retrieval process m When the last retrieved DTC has been displayed and the DTC SCROLL PE button is pressed the Enhanced Menu displays Use the UP and DOWN Enhanced Meng 1 3 buttons as necessary to highlight the desired option then press the ENTER el button to view the selected information We or press the FF M e button to return to the OBD2 DTC screen If no DTCs were retrieved or only generic DT
47. agnostic Tool returns to the OBD2 DTC screen VIEWING ABS DTCs Refer to Vehicle Applications ABS on page 73 for vehicles covered Reading ABS DTCs 1 The screen shown when ABS DTCs is selected from the Enhanced Main Menu and the appropriate vehicle manufacturer is selected if prompted depends on the vehicle make 48 For Chrysler Jeep vehicles ONLY The Chrysler Jeep ABS Menu displays Use the UP and DOWN buttons as necessary to highlight Read ABS DTCs then press the ENTER button Proceed to step 2 For GM Isuzu vehicles ONLY The GM Isuzu ABS Menu displays Use the UP and DOWN buttons as necessary to highlight the desired option Current DTC or History DTC then press the ENTER button Proceed to step 2 For Ford Mazda Honda Acura Chrysler Jeep ABS Select and press 4 Read ABS DTCs Press FF M to exit GM Isuzu ABS Select and press Current DIC History DTC Press FF M to exit and Toyota Lexus vehicles Proceed to step 2 OBD2 2 A One moment please message displays while the Diagnostic Tool Using the Diagnostic Tool retrieves the selected DTCs If the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the Diagnostic Tool s display Verify the ignition is ON then press the ENTER CH button to continue If the vehicle does not support ABS communication an advisory message shows on the Diagnostic Tools disp
48. agnostic Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No Enhanced ln DTC s are presently stored in the vehicle s computer vehicle s computer is displayed Press FF M to exit Press the FF M button to return to the Ford Mazda Enhanced menu 4 If more than one code was retrieved press the DTC SCROLL E button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again OBD2 43 Using the Diagnostic Tool VIEWING ENHANCED DTCs 5 When the last retrieved DTC has been displayed and the DTC SCROLL E button is pressed the Diagnostic Tool returns to the Ford Mazda Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 5 above m To exit the enhanced mode press the FF M button The Diagnostic Tool returns to the OBD2 DTC screen General Motors Isuzu Enhanced DTCs 44 When the Diagnostic Tool enters the enhanced mode and General Motors Isuzu is selected if prompted the GM Isuzu Enhanced menu displays You may view the MIL DTC Current DTC Fail Since Clear DTC or History DTC 1 Use the UP and DOWN buttons as necessary to highlight the desired option then press the ENTER
49. and buttons as necessary to view the additional information m The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no No Enhanced DTCs are codes are present a No Enhanced presently stored in the DTC s are presently stored in the YES computer vehicle s computer is displayed Press FF M to exit Press the FF M E button to return to the Chrysler Enhanced menu 3 If more than one code was retrieved press the DTC SCROLL PE button as necessary to display additional codes one at a time Whenever the Scroll function is used to view additional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again OBD2 41 Using the Diagnostic Tool VIEWING ENHANCED DTCs 4 When the last retrieved DTC has been displayed and the DTC SCROLL E button is pressed the Diagnostic Tool returns to the Chrysler Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the FF M button The Diagnostic Tool returns to the OBD2 DTC screen Ford Mazda Enhanced DTCs Mazda Enhanced DTCs are available for Mazda branded 42 Ford vehicles only When the Diagnostic Tool enters the enhanced mode and Ford Mazda is selected if prompted the Ford Mazda Enhanced menu displays You may view DTCs for either the Contin
50. and DOWN buttons as necessary to highlight Display Backlight in the Menu then press the ENTER button m The Display Backlight screen displays 2 Press the UP Gi or DOWN button as necessary to select the desired backlight mode either ON or OFF 3 When the desired backlight mode is selected press the ENTER button to save your changes m The display returns to the Menu and the backlight turns on or off as selected Searching for a DTC Definition Using the DTC Library 1 Use the UP and DOWN buttons as necessary to highlight DTC Library in the Menu then press the ENTER button m The Enter DTC screen displays The screen shows the code P0001 with the P highlighted 2 Use the UP and DOWN buttons as necessary to scroll to the desired DTC type P Powertrain U Network B Body C Chassis then press the DTC SCROLL E button Tool Setting Menu 3 7 Adjust Brightness Audible Tone DTC Library Press FF M to exit Display Backlight ON OFF Press FF M to exit Tool Setting Menu 4 7 Adjust Brightness Audible Tone Display Backlight DTC Librari Press FF M to exit DTC Library DTC P0001 Press DTC to select Press to view Press FF M to exit m The selected character displays solid and the next character is highlighted 3 Select the remaining characters in the DTC in the same way pressing the DTC SCROLL butt
51. asurement When the desired Unit of Measurement value is selected press the ENTER button to save your changes and return to the Menu Exiting the Tool Setting Menu 1 OBD2 Press the FF M a button Tool Setting Menu 7 7 DTC Library Firmware Version Select Language Pr Unit of Measurement Unit of Measurement Press FF M to exit Select Unit Metric Press FF M to exit The LCD display returns to the DTC screen if data is currently stored in the Diagnostic Tool s memory or the To Link screen if no data is stored 67 Generic Global OBD2 PID List The following is a list of Generic Global PIDs and their descriptions Tool Display Unit Value PID Description ACC Pedal D XXX X Accelerator Pedal Position D ACC Pedal E XXX X Accelerator Pedal Position E ACC Pedal F XXX X Accelerator Pedal Position F Air Status UPS DNS Commanded Secondary Air Status OFF Ambient C XXX Ambient Air Temperature F Aux Input On Off Auxiliary Input Status Status BARO kPa XXX Barometric Pressure inHg XX X Calc LOAD XXX X Calculated LOAD Value CAT Temp 11 C XXXX X Catalyst Temperature Bank 1 F Sensor 1 CAT Temp 12 C XXXX X Catalyst Temperature Bank 1 Ss Sensor 2 CAT Temp 21 C XXXX X Catalyst Temperature Bank 2 F Sensor 1 CAT Temp 22 C XXXX X Catalyst Temperature Bank 2
52. burned during combustion The EVAP system may consist of a charcoal canister fuel tank cap purge solenoid vent solenoid flow monitor leak detector and connecting tubes lines and hoses Fumes are carried from the fuel tank to the charcoal canister by hoses or tubes The fumes are stored in the charcoal canister The computer controls the flow of fuel vapors from the charcoal canister to the engine via a purge solenoid The computer energizes or de energizes the purge solenoid depending on solenoid design The purge solenoid opens a valve to allow engine vacuum to draw the fuel vapors from the canister 22 OBD2 Onboard Diagnostics OBD2 MONITORS into the engine where the vapors are burned The EVAP Monitor checks for proper fuel vapor flow to the engine and pressurizes the system to test for leaks The computer runs this Monitor once per trip The EVAP Monitor is supported by spark ignition vehicles only The EVAP Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the PCM commands the MIL On and saves the code in its long term memory Oxygen Sensor Heater Monitor The Oxygen Sensor Heater Monitor tests the operation of the oxygen sensor s heater There are two modes of operation on a computer controlled vehicle
53. c Tool is proper Verify that the ignition _ See to the vehicle s DLC and ne E that the ignition is on then repeat steps 2 and 3 above Erasing SRS DTCs does not fix the problem s that caused the Sp code s to be set If proper repairs to correct the problem s that caused the code s to be set are not made the code s will appear again as soon as the vehicle is driven long enough for the problem to recur ERASING DIAGNOSTIC TROUBLE CODES DTCs When the Diagnostic Tool s ERASE function is used to Se erase DTCs from the vehicle s on board computer Freeze Frame data and manufacturer specific enhanced data are also erased If you plan to take the vehicle to a Service Center for repair DO NOT erase the codes from the vehicle s computer If the codes are erased valuable information that might help the technician troubleshoot the problem will also be erased Erase DTCs from the computer s memory as follows When DTCs are erased from the vehicle s computer memory Sr the I M Readiness Monitor Status program resets the status of all Monitors to a not run flashing condition To set all of the Monitors to a DONE status an OBD2 Drive Cycle must be performed Refer to your vehicle s service manual for information on how to perform an OBD2 Drive Cycle for the vehicle under test OBD2 53 Using the Diagnostic Tool ERASING DIAGNOSTIC TROUBLE CODES DTCs The Diagnostic Tool must be Ir connected to the ve
54. cks pings or rattles Surges Dieseling or run on 29 Preparation for Testing PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET AUTOMATIC TRANSMISSION PROBLEMS if applicable D No symptoms O Vehicle does not move D Shifts too early or too late when in gear D Changes gear incorrectly D Jerks or bucks PROBLEM OCCURS O Morning O Afternoon D Anytime ENGINE TEMPERATURE WHEN PROBLEM OCCURS D Cold O Warm O Hot DRIVING CONDITIONS WHEN PROBLEM OCCURS O Short less than 2 miles O With headlights on D 2 10 miles O During acceleration O Long more than 10 miles O Mostly driving downhill O Stop and go O Mostly driving uphill O While turning O Mostly driving level O While braking O Mostly driving curvy D At gear engagement roads O With A C operating O Mostly driving rough roads DRIVING HABITS O Mostly city driving O Drive less than 10 miles per day O Highway D Drive 10 to 50 miles per day O Park vehicle inside D Drive more than 50 miles per O Park vehicle outside day GASOLINE USED O 87 Octane O 91 Octane O 89 Octane O More than 91 Octane WEATHER CONDITIONS WHEN PROBLEM OCCURS O 32 55 F 0 13 C O Above 55 F 13 C O Below freezing 32 F 0 C CHECK ENGINE LIGHT DASH WARNING LIGHT O Sometimes ON O Always ON O Never ON PECULIAR SMELLS O Hot O Gasoline O Sulfur rotten egg O Burning oil O Burning rubber O Electrical STRANGE NOISES D Rattle O Squeak O Knock D Other 30 OBD2 Preparation for
55. d by the Federal Government is called I M 240 On I M 240 the vehicle under test is driven under different speeds and load conditions on a dynamometer for 240 seconds while the vehicle s emissions are measured Emissions tests vary depending on the geographic or regional area in which the vehicle is registered If the vehicle is registered in a highly urbanized area the I M 240 is probably the type of test required If the vehicle is registered in a rural area the stricter dynamometer type test may not be required UM Readiness Monitors IM Readiness shows whether the various emissions related systems on the vehicle are operating properly and are ready for Inspection and Maintenance testing State and Federal Governments enacted Regulations Procedures and Emission Standards to ensure that all emissions related components and systems are continuously or periodically monitored tested and diagnosed whenever the vehicle is in operation It also requires vehicle manufacturers to automatically detect and report any problems or faults that may increase the vehicle s emissions to an unacceptable level The vehicle s emissions control system consists of several components or sub systems Oxygen Sensor Catalytic Converter EGR Fuel System etc that aid in reducing vehicle emissions To have an efficient Vehicle Emission Control System all the emissions related components and systems must work correctly whenever the vehicle is in o
56. damaged loose disconnected or missing spark plug wires m Make sure the battery terminals are clean and tight Check for corrosion or broken connections Check for proper battery and charging system voltages m Check all electrical wiring and harnesses for proper connection Make sure wire insulation is in good condition and there are no bare wires m Make sure the engine is mechanically sound If needed perform a compression check engine vacuum check timing check if applicable etc OBD2 31 Preparation for Testing VEHICLE SERVICE MANUALS VEHICLE SERVICE MANUALS Always refer to the manufacturers service manual for your vehicle before performing any test or repair procedures Contact your local car dealership auto parts store or bookstore for availability of these manuals The following companies publish valuable repair manuals m Haynes Publications 861 Lawrence Drive Newbury Park California 91320 Phone 800 442 9637 Web www haynes com m Mitchell 1 14145 Danielson Street Poway California 92064 Phone 888 724 6742 Web www miproducts com Motor Publications 5600 Crooks Road Suite 200 Troy Michigan 48098 Phone 800 426 6867 Web www motor com FACTORY SOURCES Ford GM Chrysler Honda Isuzu Hyundai and Subaru Service Manuals Helm Inc 14310 Hamilton Avenue Highland Park Michigan 48203 Phone 800 782 4356 Web www helminc com 32 OBD2 Using the Diagnostic Tool CODE RETRIEVAL PROCED
57. definitions a small arrow is shown in the upper lower right hand corner of the Diagnostic Tool display area to indicate the presence of additional information Use the and buttons as necessary to view the additional information un If a definition for the currently displayed code is not available an advisory message shows on the Diagnostic Tool s display La 9 Read and interpret Diagnostic Trouble Codes system condition using the display and the green yellow and red LEDs OBD2 35 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE The green yellow and red LEDs are used with the display as SP visual aids to make it easier to determine engine system conditions m Green LED Indicates that all H Di UM Pu uns 00 engine systems are OK and Ke operating normally All monitors ni i A o Powertrain DTCs or supported by the vehicle have run Freeze Frame data presently and performed their diagnostic computer Press the DTC testing and no trouble codes are Putton to view your A il nhanced DTCs present All Monitor icons will be solid I M READINESS RI Yellow LED Indicates one of the following conditions A A PENDING CODE IS PRESENT If the yellow LED is illuminated it EOTIOHILO mom DL may Mate a Pending code is Kass present Check the Diagnostic P0743 Tool s display for confirmation A Orde Converter cut Pending code is confirmed by the presence of a numeric code and
58. drocarbon Catalyst NMHC Monitor The non methane hydrocarbon catalyst is a type of catalytic converter It helps to remove non methane hydrocarbons NMH left over from the combustion process from the exhaust stream To accomplish this heat and catalyst materials react with the exhaust gases to convert NMH to less harmful compounds The computer checks the efficiency of the catalyst by monitoring the quantity of NMH in the exhaust stream The monitor also verifies that sufficient temperature is present to aid in particulate matter PM filter regeneration The NMHC Monitor is supported by compression ignition vehicles only The NMHC Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory 24 OBD2 Onboard Diagnostics OBD2 MONITORS NOx Aftertreatment Monitor NOx aftertreatment is based on a catalytic converter support that has been coated with a special washcoat containing zeolites NOx Aftertreatment is designed to reduce oxides of nitrogen emitted in the exhaust stream The zeolite acts as a molecular sponge to trap the NO and NO2 molecules in the exhaust stream In some implementations injection of a reactant before the aftertreatment purges i
59. e m For GM suzu vehicles ONLY The GM lsuzu ABS Menu displays Use the UP and DOWN buttons as necessary to highlight the desired option Current DTC or History DTC then press the ENTER GH button Proceed to step 2 GM Isuzu SRS Select and press 4 i Current DTC History DTC Press FF M to exit m For Chrysler Jeep Ford Mazda Honda Acura and Toyota Lexus vehicles Proceed to step 2 2 A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs m lf the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the Diagnostic Tool s display Verify the ignition is ON then press the ENTER button to continue m f the vehicle does not support SRS communication an advisory message shows on the Diagnostic Tools display Press the FF M cu button to return to the Enhanced Main Menu 3 To read the display Ford Mazda SRS Unable to establish a link with the vehicle Verify the ignition is ON and press di ES This vehicle does not support SRS communication Press FF M to exit Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements m A visible icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m A visible ap icon indicates that the Diagnostic Tool is linked to communicating with the vehicle s computer OBD2 51 Using the Diagnost
60. e 40 to view enhanced DTCs for your vehicle m f you do not wish to view enhanced DTCs press the FF M E button to return to the OBD2 DTC screen Sr If a Manufacturer specific DTC was retrieved during the code retrieval process and the manufacturer selected for the code was not Chrysler Jeep Ford Mazda GM Isuzu Honda Acura or Toyota Lexus pressing the DTC SCROLL amp button after display of the last retrieved DTC returns the screen to the first retrieved DTC the Enhanced DTC menu is not displayed 12 Determine engine system s condition by viewing the Diagnostic Tool s display for any retrieved Diagnostic Trouble Codes code definitions and Freeze Frame data and interpreting the green yellow and red LEDs m f DTC s were retrieved and you are going to perform the repairs yourself proceed by consulting the Vehicle s Service Repair Manual for testing instructions testing procedures and flow charts related to retrieved code s m f you plan to take the vehicle to a professional to have it serviced complete the PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET on page 28 and take it together with the retrieved codes freeze frame data and LED information to aid in the troubleshooting procedure m To prolong battery life the Diagnostic Tool automatically shuts Off approximately three minutes after it is disconnected from the vehicle The DTCs retrieved Monitor Status and Freeze Frame data if any will remain in the Di
61. e met before a vehicle is allowed to be Emissions Tested Smog Checked is that the vehicle does not have any Diagnostic Trouble Codes present with the exception of PENDING Diagnostic Trouble Codes 2 In addition to the requirement that no Diagnostic Trouble Codes be present some areas also require that all the Monitors that a particular vehicle supports indicate a Has Run status condition before an Emissions Check may be performed 3 Other areas may only require that some but not all Monitors indicate a Has Run status before an Emissions Test Smog Check may be performed Monitors with a Has Run status indicate that all the SP required conditions they needed to perform diagnosis and testing of their assigned engine area system have been met and all diagnostic testing has completed success fully Monitors with a Has Not Run status have not yet met the conditions they need to perform diagnosis and testing of their assigned engine area system and have not been able to perform diagnostic testing on that system The green yellow and red LEDs provide a quick way to help you determine if a vehicle is ready for an Emissions Test Smog Check Follow the instructions below to perform the Quick Check Perform the CODE RETRIEVAL PROCEDURE as described on page 33 then interpret the LED indications as follows Interpreting I M Readiness Test Results 1 GREEN LED Indicates that all engine 2osoo8ace U mm s
62. ed in the vehicle s computer is displayed Press the FF M button to return to the Enhanced Main Menu No ABS DTCs are presently stored in the vehicle s computer Press FF M to exit 49 Using the Diagnostic Tool VIEWING ABS DTCs 4 If more than one code was retrieved press the DTC SCROLL F button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again 5 When the last retrieved DTC has been displayed and the DTC SCROLL button is pressed the Diagnostic Tool returns to the Enhanced Main Menu m To exit the enhanced mode press the FF M button The Diagnostic Tool returns to the OBD2 DTC screen Erasing ABS DTCs If you plan to take the vehicle to a Service Center for repair DO NOT erase the ABS DTCs from the vehicle s computer If the codes are erased valuable information that might help the technician troubleshoot the problem will be erased 1 With the Diagnostic Tool in ABS Mode see Reading ABS DTCs on page 48 for details press the ERASE button 2 A confirmation message shows on the LCD display m f you are sure you want to proceed press the ERASE ER button to erase the ABS DTCs from the vehicle s computer m f you do not want to continue with the erase process
63. ed with some type of first generation On Board Diagnostics Beginning in 1988 California s Air Resources Board CARB and later the Environmental Protection Agency EPA required vehicle manufacturers to include a self diagnostic program in their on board computers The program would be capable of identifying emissions related faults in a system The first generation of Onboard Diagnostics came to be known as OBDI OBD1 is a set of self testing and diagnostic instructions programmed into the vehicle s on board computer The programs are specifically designed to detect failures in the sensors actuators switches and wiring of the various vehicle emissions related systems If the computer detects a failure in any of these components or systems it lights an indicator on the dashboard to alert the driver The indicator lights only when an emissions related problem is detected The computer also assigns a numeric code for each specific problem that it detects and stores these codes in its memory for later retrieval These codes can be retrieved from the computer s memory with the use of a Code Reader or a Scan Tool On Board Diagnostics Second Generation OBD2 In addition to performing all the functions of the OBD1 System the j OBD2 System has been enhanced with Rice S new Diagnostic Programs These programs closely monitor the functions of various emissions related compo nents and systems as well as other syste
64. el and Comprehensive Component Monitors run continuously and their icons will always be on solid even after the erase function is performed m Each DTC is associated with a specific Monitor Consult the vehicle s service manual to identify the Monitor or Monitors associated with the faults that were repaired Follow the manufacturer s procedures to perform a Trip Drive Cycle for the appropriate Monitors While observing the Monitor icons on the Diagnostic Tool s display perform a Trip Drive Cycle for the appropriate Monitor or Monitors If the vehicle needs to be driven in order to perform a Trip Drive Cycle ALWAYS have a second person help you One person should drive the vehicle while the other person observes the Monitor icons on the Diagnostic Tool for Monitor RUN status Trying to drive and observe the Diagnostic Tool at the same time is dangerous and could cause a serious traffic accident When a Monitor s Trip Drive Cycle is performed properly the Monitor icon on the Diagnostic Tool s display changes from flashing to solid indicating that the Monitor has run and finished its diagnostic testing m If after the Monitor has run the MIL on the vehicle s dash is not lit and no stored or pending codes associated with that particular Monitor are present in the vehicle s computer the repair was successful m If after the Monitor has run the MIL on the vehicle s dash lights and or a DTC associated with that Monitor
65. erter by monitoring the oxygen sensors used by the system One sensor is located before upstream of the converter the other is located after downstream of the converter If the catalytic converter loses its ability to store oxygen OBD2 21 Onboard Diagnostics OBD2 MONITORS the downstream sensor signal voltage becomes almost the same as the upstream sensor signal In this case the monitor fails the test The Catalyst Monitor is supported by spark ignition vehicles only The Catalyst Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory O Heated Catalyst Monitor Operation of the heated catalytic converter is similar to the catalytic converter The main difference is that a heater is added to bring the catalytic converter to its operating temperature more quickly This helps reduce emissions by reducing the converter s down time when the engine is cold The Heated Catalyst Monitor performs the same diagnostic tests as the catalyst Monitor and also tests the catalytic converter s heater for proper operation The Heated Catalyst Monitor is supported by spark ignition vehicles only This Monitor is also a Two Trip Monitor
66. es that takes into consideration the various types of driving conditions encountered in real life Driving Condition A specific environmental or operation condition under which a vehicle is operated such as starting the vehicle when cold driving at steady speed cruising accelerating etc DTC s Diagnostic Trouble Code s EGR Exhaust Gas Recirculation EPA Environmental Protection Agency EVAP Evaporative Emissions System Fault Code See DTCs Freeze Frame A digital representation of engine and or emissions system conditions present when a fault code was recorded FTP Fuel Tank Pressure Generic Code A DTC that applies to all OBD2 compliant vehicles UN Readiness An indication of whether or not a vehicle s emissions related system are operating properly and are ready for Inspection and Maintenance testing I M Test Emissions Test Smog Check A functional test of a vehicle to determine if tailpipe emissions are within Federal State Local requirements LCD Liquid Crystal Display LED Light Emitting Diode LTFT Long Term Fuel Trim is a program in the vehicle s computer designed to add or subtract fuel from the vehicle to compensate for operating conditions that vary from the ideal A F ratio long term Manufacturer Specific Code A DTC that applies only to OBD2 compliant vehicles made by a specific manufacturer MIL Malfunction Indicator Lamp also referred to as Check Engine
67. had to make their vehicles more fuel efficient Most vehicles were required to meet a miles per gallon MPG standard set by the U S Federal Government Precise fuel delivery and spark timing are needed to reduce vehicle emissions Mechanical engine controls in use at the time such as ignition points mechanical spark advance and the carburetor responded too slowly to driving conditions to properly control fuel delivery and spark timing This made it difficult for vehicle manufacturers to meet the new standards A new Engine Control System had to be designed and integrated with the engine controls to meet the stricter standards The new system had to m Respond instantly to supply the proper mixture of air and fuel for any driving condition idle cruising low speed driving high speed driving etc Calculate instantly the best time to ignite the air fuel mixture for maximum engine efficiency m Perform both these tasks without affecting vehicle performance or fuel economy Vehicle Computer Control Systems can perform millions of calculations each second This makes them an ideal substitute for the slower mechanical engine controls By switching from mechanical to electronic engine controls vehicle manufacturers are able to control fuel delivery and spark timing more precisely Some newer Computer Control Systems also provide control over other vehicle functions such as transmission brakes charging body and suspension s
68. he panel on the drivers side of most vehicles It should be easily accessible and visible from a E g kneeling position outside the x AS nnd CENTER 4 ASHTRAY vehicle with the door open LEFT CORNER OF DASH OF DASH OBD2 5 About the Diagnostic Tool BATTERY REPLACEMENT On some Asian and European vehicles the DLC is located behind the ashtray the ashtray must be removed to access it or on the far left corner of the dash If the DLC cannot be located consult the vehicle s service manual for the location BATTERY REPLACEMENT Replace batteries when the battery symbol ee is visible on display and or the 3 LEDS are all lit and no other data is visible on screen 1 2 3 4 Locate the battery cover on the back of the Diagnostic Tool Slide the battery cover off use your fingers Replace batteries with three AA size batteries for longer life use Alkaline type batteries Reinstall the battery cover on the back of the Diagnostic Tool Adjustments After Battery Installation The first time the Diagnostic Tool is turned on you must select the desired display language English French or Spanish and unit of measurement USA or metric as follows 1 Press the POWER LINK F button to turn the Diagnostic Tool ON m The Select Language screen tanguage ldioma Languae dis la S SH select an ress pay ESPA OL Seleccione y Use the UP and DOWN buttons opima E seret as necessary
69. hicle s DLC to erase the codes from the J TO ERASE computer s memory If you press Connect the DLC to the the ERASE button when the fit he ignition on Diagnostic Tool is not connected Press TE M to exit to the vehicle s DLC the erase instruction screen displays The Erase function can be performed only from the OBD2 SP DTC screen The Erase function cannot be performed while the Diagnostic Tool is in enhanced mode 1 If not connected already connect the Diagnostic Tool to the vehicle s DLC and turn the ignition On If the Diagnostic Tool is already connected and linked to the vehicle s computer proceed directly to step 3 If not continue to step 2 2 Perform the CODE RETRIEVAL PROCEDURE as described on page 33 Wait until the codes are displayed on the Diagnostic Tool s LCD display then proceed to step 3 3 Press and release the ERASE button A confirmation message shows on the LCD display If you are sure you want to proceed ae rasing clears all DTCs use the UP 8 and DOWN Freeze Frame Data and 5 nitors buttons as necessary to highlight Are you sure Yes then press the ENTER button to erase DTCs from the vehicle s computer If you do not want to continue with the erase process use the UP O and DOWN buttons as necessary to highlight No then press the ENTER button to exit the erase mode 4 If you chose to erase DTCs a progress screen di
70. his time If the fault is found again on the second trip under similar conditions of engine speed load and temperature the computer commands the MIL On and the code is saved in its long term memory Type 2 misfires are the most severe type of misfire When a Type 2 misfire is sensed on the first trip the computer commands the MIL to light when the misfire is sensed If the computer determines that a Type 2 misfire is severe and may cause catalytic converter damage it commands the MIL to flash once per second as soon as the misfire is sensed When the misfire is no longer present the MIL reverts to steady On condition The Misfire Monitor is supported by both spark ignition vehicles and compression ignition vehicles CAT Catalyst Monitor The catalytic converter is a device that is installed downstream of the exhaust manifold It helps to oxidize burn the unburned fuel hydrocarbons and partially burned fuel carbon monoxide left over from the combustion process To accomplish this heat and catalyst materials inside the converter react with the exhaust gases to burn the remaining fuel Some materials inside the catalytic converter also have the ability to store oxygen and release it as needed to oxidize hydrocarbons and carbon monoxide In the process it reduces vehicle emissions by converting the polluting gases into carbon dioxide and water The computer checks the efficiency of the catalytic conv
71. ic Tool VIEWING SRS DTCs m The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved 3s m The Diagnostic Trouble Code DTC Sensor circuit Shorted to and related code definition are Ground shown in the lower section of the LCD display I M MONITOR STATUS icons are not displayed when viewing 13 Chrysler Jesp In the case of long code definitions a small arrow is shown in es SRS DTCs Les the upper lower right hand corner of the code display area to indicate the presence of additional information Use the UP and DOWN buttons as necessary to view the additional information m The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No SRS DTC s e are presently stored in the vehicle s computer computer is displayed Press the Press FF M to exit FF M a button to return to the Enhanced Main Menu If more than one code was retrieved press the DTC SCROLL E button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Diagnostic Tools communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again When the last retrieved DTC has been displayed and the DTC SCROLL E button is pressed the Diagnostic Tool returns to
72. icating linked with the vehicle s on board computer When visible the Diagnostic Tool is communicating with the computer If the Link icon is not visible the Diagnostic Tool is not communicating with the computer a Computer icon When this icon is visible it indicates that the Diagnostic Tool is linked to a personal computer Optional software is available that makes it possible to upload retrieved data to a personal computer Diagnostic Tool Internal Battery icon When visible indicates the Diagnostic Tool batteries are low and should be replaced If the batteries are not replaced when the battery symbol as is on all 3 LEDs will light up as a last resort indicator to warn you that the batteries need replacement No data will be displayed on screen when all 3 LEDs are lit DTC Display Area Displays the Diagnostic Trouble Code DTC number Each fault is assigned a code number that is specific to that fault Test Data Display Area Displays DTC definitions Freeze Frame data and other pertinent test information messages FREEZE FRAME icon Indicates that there is Freeze Frame data from Priority Code Code 1 stored in the vehicle s computer memory PERMANENT icon Indicates the currently displayed DTC is a Permanent code PENDING icon Indicates the currently displayed DTC is a Pending code MIL icon Indicates the status of the Malfunction Indicator Lamp MIL The MIL icon is visible only
73. is code The priority code is also the one that has commanded the MIL on m Use the UP and DOWN buttons as necessary to view all available Freeze Frame data 3 When finished press and release the FF M button to return to the OBD2 DTC screen VIEWING VEHICLE INFORMATION The Vehicle Info function offers three options for retrieving reference information for the vehicle under test Vehicle ID Available Modules and IPT In Use Performance Tracking Retrieving Vehicle ID Information The Vehicle ID function is applicable to model year 2000 and newer OBD2 compliant vehicles 60 OBD2 Additional Tests VIEWING VEHICLE INFORMATION The Diagnostic Tool can retrieve a list of information provided by the veh veh La 5 When the retrieval process is completed ice manufacturer unique to the vehicle under test from the icle s on board computer This information may include The vehicle s VIN number The control module identification number The vehicle s calibration ID s These IDs uniquely identify the software version s for the vehicle s control module s The Vehicle s Calibration Verification Number s CVNs required by ODB2 regulations CVNs are used to determine if emission related calibrations for the vehicle under test have been changed One or more CVNs may be returned by the vehicle s computer While linked to the vehicle press and release the FF M button m The Test Mode menu displays
74. l Year Cougar 1999 2002 Montego 2005 2007 Grand Marquis 1996 2008 Mountaineer 1997 2008 Marauder 2003 2004 Mystique 1996 2000 Mariner 2005 2007 Sable 1996 2008 Milan 2006 2008 Tracer 1996 1999 GM BUICK Model Year Model Year Century 1996 2005 Regal 1996 2004 Lacrosse 2007 2008 Rendezvous 2002 2007 LeSabre 1996 2005 Skylark 1996 1998 Park Avenue 1996 2005 Terraza 2007 Rainier 2004 2007 OBD2 79 Vehicle Applications SRS CADILLAC Model Year Model Year CTS 2006 2007 Seville 1996 2004 DeVille 1996 2002 SRX 2006 Eldorado 1996 2002 XLR 2008 Escalade 1999 2006 CHEVROLET Model Year Model Year Astro 1999 2005 K3500 1999 2008 Avalanche 2002 2006 Lumina 1996 2001 Aveo 2006 2008 Malibu 1999 2003 Blazer 1996 2005 Malibu Classic 2004 2005 C1500 1999 2008 Monte Carlo 2000 2005 C2500 1999 2008 Silverado 2500 2000 2005 C3500 1999 2008 Silverado 3500 2000 2005 Camaro 1996 2002 SSR 2003 2006 Cavalier 1996 2005 Suburban 2000 2005 Colorado 2004 2008 Tahoe 2000 2005 Corvette 1996 2008 Tracker 1998 2004 Equinox 2005 2006 Trailblazer 2002 2008 Express 1999 2007 Trailblazer EXT 2002 2006 Impala 1996 2005 Uplander 2007 2008 K1500 1999 2008 Venture 2000 2004 K2500 1999 2008 GMC Model Year Model Year C1500 1999 2008 Safari 1999 2005 C2500 1999 2008 Savana 2003 2005 C3500 1999 2008 Sierra 2003 20
75. lay Press the FF M button to return to the Enhanced Main Menu 3 To read the display La OBD2 Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements A visible icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector A visible ab icon indicates that the VIEWING ABS DTCs Chrysler Jeep ABS Unable to establish a link with the vehicle Verify the ignition is ON and press This vehicle does not support ABS communication Press FF M to exit DL D C1274 Right front ABS wheel speed sensor ABS sensor rotor signal abnormal Diagnostic Tool is linked to communicating with the vehicle s computer The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display I M MONITOR STATUS icons are not displayed when viewing ABS DTCs In the case of long code definitions a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the UP Gi and DOWN buttons as necessary to view the additional information The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No ABS DTC s are presently stor
76. ms and make this information readily available with the proper equipment to the technician for evaluation The California Air Resources Board CARB conducted studies on OBD1 equipped vehicles The information that was gathered from these studies showed the following OBD1 System m A large number of vehicles had deteriorating or degraded emissions related components These components were causing an increase in emissions OBD2 13 Onboard Diagnostics COMPUTER ENGINE CONTROLS m Because OBD1 systems only detect failed components the degraded components were not setting codes Some emissions problems related to degraded components only occur when the vehicle is being driven under a load The emission checks being conducted at the time were not performed under simulated driving conditions As a result a significant number of vehicles with degraded components were passing Emissions Tests m Codes code definitions diagnostic connectors communication protocols and emissions terminology were different for each manufacturer This caused confusion for the technicians working on different make and model vehicles To address the problems made evident by this study CARB and the EPA passed new laws and standardization requirements These laws required that vehicle manufacturers to equip their new vehicles with devices capable of meeting all of the new emissions standards and regulations It was also decided that an enhanced on
77. next DTC in sequence until all DTCs in its memory have displayed m In OBD2 systems when an emissions related engine malfunction occurs that causes a DTC to set a record or snapshot of engine conditions at the time that the malfunction occurred is also saved in the vehicle s computer memory The record saved is called Freeze Frame data Saved engine conditions include but are not limited to engine speed open or closed loop operation fuel system commands coolant temperature calculated load value fuel pressure vehicle speed air flow rate and intake manifold pressure See VIEWING FREEZE FRAME DATA on page 60 for procedures to view Freeze Frame data OBD2 37 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE 38 If more than one malfunction is present that causes more than 7 one DTC to be set only the code with the highest priority will contain Freeze Frame data The code designated 01 on the Diagnostic Tool display is referred to as the PRIORITY code and Freeze Frame data always refers to this code The priority code is also the one that has commanded the MIL on Retrieved information can be uploaded to a Personal Computer w PC with the use of optional software see instructions included with the software for more information 11 When the last retrieved DTC has been displayed and the DTC SCROLL ESA button is pressed the Diagnostic Tool enters the enhanced mode m See VIEWING ENHANCED DTCs on pag
78. nitors Currently fifteen Monitors are supported by OBD2 systems Additional monitors may be added as a result of Government regulations as the OBD2 system grows and matures Not all vehicles support all fifteen Monitors Additionally some Monitors are supported by spark ignition vehicles only while others are supported by compression ignition vehicles only Monitor operation is either Continuous or Non Continuous depending on the specific monitor Continuous Monitors Three of these Monitors are designed to constantly monitor their associated components and or systems for proper operation Continuous Monitors run constantly when the engine is running The Continuous Monitors are Comprehensive Component Monitor CCM Misfire Monitor Fuel System Monitor OBD2 19 Onboard Diagnostics OBD2 MONITORS Non Continuous Monitors The other twelve Monitors are non continuous Monitors Non continuous Monitors perform and complete their testing once per trip The non continuous Monitors are D Oxygen Sensor Monitor Oxygen Sensor Heater Monitor CAT Catalyst Monitor Heated Catalyst Monitor EGR System Monitor ED EVAP System Monitor Secondary Air System Monitor The following Monitors became standard beginning in 2010 The majority of vehicles produced before this time will not support these Monitors NMHC Monitor NOx Adsorber Monitor Boost Pressure S
79. nostic Tool to your particular needs It also contains an OBD2 DTC Library that allows you to search for DTC definitions The following functions adjustments and settings can be performed from the Tool Settings menu Adjust Brightness Adjusts the brightness of the display screen Audible Tone Turns the Diagnostic Tool s audible tone on and off When turned on a tone sounds each time a button is pressed Display Backlight Turns the display backlight on and off DTC Library Library of OBD2 DTC definitions Firmware Version Displays the Diagnostic Tool s firmware version Select Language Sets the display language for the Diagnostic Tool to English French or Spanish Unit of Measurement Sets the Unit of Measurement for the Diagnostic Tool s display to USA or metric Adjustments and settings can be made only when the Diagnostic Tool is NOT connected to a vehicle To access the Tool Settings menu 1 With the Diagnostic Tool on the Code test Mode 3 3 Retrieval screen press and release the neie FF M E button Press FF M to exit m The Test Mode Menu displays OBD2 63 Additional Tests ADJUSTMENTS AND SETTINGS 64 2 Use the UP and DOWN buttons as necessary to highlight Tool Setting then press the ENTER button m The Tool Setting Menu displays Make adjustments and settings as described in the following paragraphs Adjusting Display Brightness 1
80. nt However the DTCs remain in the computer s memory as a history code for 40 warm up cycles 80 warm up cycles for fuel and misfire faults The DTCs are automatically erased if the fault that caused them to be set is not detected again during that period m Misfire and fuel system faults require three trips with similar conditions before the MIL is turned Off These are trips where the engine load RPM and temperature are similar to the conditions present when the fault was first found After the MIL has been turned off DTCs and Freeze Frame data stay in the computer s memory m Erasing the DTCs from the computer s memory can also turn off the MIL See ERASING DIAGNOSTIC TROUBLE CODES DTCs on page 53 before erasing codes from the computers memory If a Diagnostic Tool or Code Reader is used to erase the codes Freeze Frame data will also be erased OBD2 MONITORS To ensure the correct operation of the various emissions related components and systems a diagnostic program was developed and installed in the vehicle s on board computer The program has several procedures and diagnostic strategies Each procedure or diagnostic strategy is made to monitor the operation of and run diagnostic tests on a specific emissions related component or system These tests ensure the system is running correctly and is within the manufacturers specifications On OBD2 systems these procedures and diagnostic strategies are called Mo
81. nyon 2004 2008 Sierra 2500 2003 2008 Envoy 1999 2005 Sierra 3500 2003 2008 Envoy XL 2003 2005 Sierra Denali 2003 2008 Jimmy 1996 2005 Sonoma 1996 2004 K1500 2000 2003 Yukon 1999 2008 K2500 2000 2003 Yukon XL 1999 2008 K3500 2000 2003 OBD2 75 Vehicle Applications ABS HUMMER Model Year Model Year H2 2004 2005 H3 2006 2008 OLDSMOBILE Model Year Model Year Achieva 1998 Cutlass 1997 1999 Alero 1999 2004 Intrigue 1998 2002 Aurora 2001 2003 LSS 1997 1999 Bravada 1996 2004 Silhouette 2000 2004 PONTIAC Model Year Model Year Aztek 2001 2005 Grand Am 1998 2005 Bonneville 2000 2005 Grand Prix 2004 2008 Bonneville SE 2000 2005 GTO 2005 2006 Bonneville SLE 2000 2005 Montana 2000 2005 Bonneville SSEi 2000 2005 Montana SV6 2005 2007 Firebird 1999 2002 Solstice 2006 2008 G5 2007 2008 Sunfire 2000 2005 G6 2005 2008 Torrent 2006 2008 G8 2008 Vibe 2003 2006 ABS APPLICATIONS IMPORT Honda ACURA Model Year Model Year CL 1997 1999 RL 1996 2009 2001 2003 MDX 2001 2009 RSX 2002 2006 NSX 1996 2005 TL 1996 2009 RDX 2007 2009 TSX 2004 2008 HONDA Model Year Model Year Accord 1996 2008 Odyssey 1996 2008 Civic 1996 2008 Pilot 2003 2009 CR V 1997 2009 Ridgeline 2006 2009 Element 2003 2009 2000 2000 2009 Fit 2007 76 OBD2 Vehicle Applications ABS To
82. on to confirm each character When you have selected all the DTC characters press the ENTER button to view the DTC definition m H you entered a Generic DTC DTCs that start with PO P2 and some P3 The selected DTC and DTC definition if available show on the Diagnostic Tool s display OBD2 P2247 Generic 02 sensor reference voltage circuit open bank 2 sensor 1 65 Additional Tests ADJUSTMENTS AND SETTINGS 66 LS If a definition for the DTC you entered is not available an advisory message shows on the Diagnostic Tools display m If you entered a Manufacturer Specific DTC DTCs that start with P1 and some P3 The Select Manufacturer screen displays Use the UP and DOWN buttons as necessary to high light the appropriate manufacturer then press the ENTER button to display the correct DTC for your vehicle If a definition for the DTC you entered is not available an advisory message shows on the Diagnostic Tool s display If you wish to view definitions for additional DTCs press the ENTER button to return to the Enter DTC screen and repeat steps 2 and 3 Select Manufacturer Acura Audi Chrysler Geo Honda Ford P1274 The DTC definition is not available please visit www innova com When all desired DTCs have been viewed press the FF M Gi button to exit the DTC Library Viewing the Firmware
83. onitors the efficiency of the filter in trapping particulate matter as well as the ability of the filter to regenerate self clean The PM Filter Monitor is supported by compression ignition vehicles only The PM Filter Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory OBD2 Reference Table 26 The table below lists current OBD2 Monitors and indicates the following for each Monitor A Monitor Type how often does the Monitor run Continuous or Once per trip B Number of trips needed with a fault present to set a pending DTC C Number of consecutive trips needed with a fault present to command the MIL On and store a DTC D Number of trips needed with no faults present to erase a Pending DTC E Number and type of trips or drive cycles needed with no faults present to turn off the MIL F Number of warm up periods needed to erase the DTC from the computer s memory after the MIL is turned off OBD2 Onboard Diagnostics OBD2 MONITORS Name of Monitor A B c D E F Comprehensive Component Monitor Continuous 1 2 1 3 40 Misfire Monitor i 3 similar Type 1 and 3 Con
84. peration OBD2 55 Using the Diagnostic Tool I M READINESS TESTING To comply with State and Federal Government regulations vehicle manufacturers designed a series of special computer programs called Monitors that are programmed into the vehicle s computer Each of these Monitors is specifically designed to run tests and diagnostics on a specific emissions related component or system Oxygen Sensor Catalytic Converter EGR Valve Fuel System etc to ensure their proper operation Currently there are a maximum of eleven Monitors available for use Each Monitor has a specific function to test and diagnose only ts designated emissions related component or system The names of the Monitors Oxygen Sensor Monitor Catalyst Monitor EGR Monitor Misfire Monitor etc describe which component or system each Monitor is designed to test and diagnose Emissions Inspection and Maintenance I M Readiness Monitor Status Information IM Readiness Monitor Status shows which of the vehicle s Monitors have run and completed their diagnosis and testing and which ones have not yet run and completed testing and diagnosis of their designated sections of the vehicle s emissions system m l a Monitor was able to meet all the conditions required to enable it to perform the self diagnosis and testing of its assigned engine system it means the monitor HAS RUN m f a Monitor has not yet met all the conditions required for it to perform
85. press the FF M Si button to exit the erase mode and return to the Enhanced Main Menu 3 If you chose to erase ABS DTCs a progress screen displays while the erase function is in progress m f the erase was successful a confirmation message shows on the LCD display Press the POWER LINK button to re link the Diagnostic Tool to the vehicle Erasing clears all ABS DTCs Are you sure YES Press gt NO Press FF M to exit Erase was successful Press the es button to relink the module m lf the erase was not successful an advisory message shows on the LCD display Verify that the Diagnostic Tool is properly 50 connected to the vehicle s DLC and that the ignition is on then repeat steps 2 and 3 above Erase has failed Verify the connection at the Verify that the ignition button to continue OBD2 Using the Diagnostic Tool VIEWING SRS DTCs Erasing ABS DTCs does not fix the problem s that caused the code s to be set If proper repairs to correct the problem s that caused the code s to be set are not made the code s will appear again as soon as the vehicle is driven long enough for the problem to recur VIEWING SRS DTCs Refer to Vehicle Applications SRS on page 78 for vehicles covered Reading SRS DTCs 1 The screen shown when SRS DTCs is selected from the Enhanced Main Menu and the appropriate vehicle manufacturer is selected if prompted depends on the vehicle mak
86. rt Term Fuel Trim Bank 4 Time DTC Clr hrs XXXX XX Time since DTC Cleared min Time Since sec XXXX Time Since Engine Start Start TPS XXX X Absolute Throttle Position TPS B XXX X Absolute Throttle Position B TPSC XXX X Absolute Throttle Position C OBD2 71 Generic Global OBD2 PID List Tool Display Unit Value PID Description Veh Speed km h XXX XXX Vehicle Speed Sensor mph Warm up DTC XXX Warm ups since DTC Cleared Clr 72 OBD2 Vehicle Applications ABS ABS APPLICATIONS DOMESTIC Chrysler CHRYSLER Model Year Model Year 300C 2005 2008 Crossfire 2004 2008 300 LX 2005 2008 LHS 1998 2001 300C SRT8 2005 2007 PT Cruiser 2001 2008 300M 1999 2004 Sebring 2001 2008 Aspen 2006 2008 SRT 4 2004 2008 2WD 4WD Concorde 1998 2004 Town amp Country 2001 2008 DODGE Model Year Model Year Avenger 1996 2000 Neon 2000 2005 2008 Caravan 2001 2007 Nitro 2007 2008 Charger 2006 2008 Ram 1500 2002 2008 Charger SRT 4 2006 2008 Ram 2500 2002 2008 Cirrus 1996 2000 Ram SRT 10 2004 2007 Dakota 2001 2008 SRT 4 2003 2005 Durango 2001 2008 Stratus Coupe 2001 2006 Grand Caravan 2001 2008 Stratus Sedan 2001 2006 Intrepid 1998 2004 Viper 2001 2002 Magnum 2005 2008 JEEP Model Year Model Year Commander 2006 2008 Liberty 2002 2008 Compass 2007 2008 Liberty Limited 2002 2008 Grand Cherokee 1999 2008 Liberty 20
87. s Ford Mazda KOEO Turn ignition OFF then back ON When complete press to start KOEO test Press FF M to exit OBD2 Using the Diagnostic Tool VIEWING ENHANCED DTCs m if the KOER test was selected press the ENTER CH button to continue A One moment please message Ford Mazda KOER displays while the test is in When test starts do the progress following Turn the steering wheel to the SES right then release Press and release the brake pedal Cycle the overdrive switch if equipped 3 To read the display Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements m A visible icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved P1250 Ki Vacuum reservoir control m The Diagnostic Trouble Code DTC circuit open and related code definition are shown in the lower section of the LCD display IM MONITOR STATUS icons are not displayed when Sr viewing enhanced DTCs aL a D In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the and buttons as necessary to view the additional information m The Di
88. s a week PST FAX 714 432 3979 24 hr Web www innova com OBD2 85 TECHNICAL ASSISTANC uu CERTIFIED HABLAMOS ESPANOL SERVICE IN USA WE EMPLOY TECHNICIANS CERTIFIED BY ASE ONLY LET US SHOW YOU THEIR CREDENTIALS www Innova com N ANA INNOVA Innova Electronics Corp 17352 Von Karman Ave Irvine CA 926 1 4 PRODUCT DESIGN amp COPYRIGHT Printed in Taiwan Instruction MRP 93 0331 Rev A 2010 D i a Copyright 2010 IEC All Rights Reserved 0000880888
89. s that are used by all vehicle YS manufacturers The standards for generic DTCs as well as their definitions are set by the Society of Automotive Engineers SAE 16 OBD2 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs Manufacturer Specific DTCs are codes that are controlled by SS the vehicle manufacturers The Federal Government does not require vehicle manufacturers to go beyond the standardized generic DTCs in order to comply with the new OBD2 emissions standards However manufacturers are free to expand beyond the standardized codes to make their systems easier to diagnose m The 3rd character is a numeric digit It identifies the specific system or sub system where the problem is located m The 4th and 5th characters are numeric digits They identify the section of the system that is malfunctioning OBD2 DTC EXAMPLE P0201 Injector Circuit Malfunction Cylinder 1 B Body 020 C Chassis P Powertrain U Network 0 Generic 1 Manufacturer Specific 2 Generic 3 Includes both Generic and Manufacturer Specific Codes Identifies the system where the problem is located 1 Fuel and Air Metering 2 Fuel and Air Metering injector circuit malfunction only 3 Ignition System or Misfire 4 Auxiliary Emission Control System 5 Vehicle Speed Control and Idle Control System 6 Computer Output Circuits 7 Transmission 8 Transmission Identifies what section of
90. splays while the erase function is in progress Erase was successful m f the erase was successful a confirmation message shows on the the current DTCs an I M display Press the POWER LINK CSN button to return to the DTC screen 54 OBD2 Using the Diagnostic Tool I M READINESS TESTING m If the erase was not successful an advisory message shows on the display Verify that the Diagnostic Tool is properly connected to the vehicle s DLC and that the ignition is EE on then repeat steps 2 and 3 above Erase has failed button to continue Erasing DTCs does not fix the problem s that caused the code s to be set If proper repairs to correct the problem that caused the code s to be set are not made the code s will appear again and the check engine light will illuminate as soon as the vehicle is driven long enough for its Monitors to complete their testing M READINESS TESTING IM is an Inspection and Maintenance program legislated by the Government to meet federal clean air standards The program requires that a vehicle be taken periodically to an Emissions Station for an Emissions Test or Smog Check where the emissions related components and systems are inspected and tested for proper operation Emissions Tests are generally performed once a year or once every two years On OBD2 systems the UM program is enhanced by requiring vehicles to meet stricter test standards One of the tests institute
91. started IGNCNTR 1 While linked to the vehicle press and release the FF M button m The Test Mode Menu displays 2 Use the UP and DOWN buttons as necessary to highlight Vehicle Info then press the ENTER button m The Vehicle Info Menu displays 3 Use the UP and DOWN buttons as necessary to highlight IPT then press the ENTER button Test Mode View Freeze Frame Tool Settings 2 3 Press FF M to exit Vehicle Info Menu 3 3 Vehicle ID Available Modules Press FF M to exit OBD2 Additional Tests ADJUSTMENTS AND SETTINGS 4 A One moment please message displays while the requested information is retrieved from the vehicle s computer R IPT m f In use Performance Tracking is IPT data not not supported by the vehicle under Supported test an advisory message shows on GE the Diagnostic Tool s display Press the FF M Ey button to exit 5 When the retrieved process is completed In use Performance Tracking statistics for monitors supported by the vehicle IPT 1 16 under test are shown on the Diagnostic a 508 Tool s display Use the UP and EATCOMPL CR DOWN CG buttons as necessary to Press FF M to exit view the entire list 6 When you have finished viewing the statistics press the FF M E button to exit ADJUSTMENTS AND SETTINGS The Diagnostic Tool lets you make several adjustments and settings to configure the Diag
92. stic Tool automatically identifies the protocol type and establishes a communication link with the vehicle s computer Linked to ISO 9141 7 After approximately 10 60 seconds the Diagnostic Tool will retrieve and display any Diagnostic Trouble Codes Monitor Status and Freeze Frame Data retrieved from the vehicle s computer memory m lf the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the Diagnostic Tool s display Unable to establish a link with the vehicle Verify the connection at the DLC Verify the connection at the and verify the ignition is ON ON ahd ae ee Turn the ignition OFF wait 5 seconds then turn back ON to reset the computer Ensure your vehicle is OBD2 compliant See VEHICLES COVERED on page 5 for vehicle compliance verification information 34 OBD2 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE m The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present the message No Powertrain DTCs or Freeze Frame Data presently stored in the vehicle s computer Press the DTC button to view your Enhanced DTC s display Press the DTC SCROLL E button to enter the enhanced mode see THE ENHANCED MAIN MENU on page 39 m The Diagnostic Tool is capable of retrieving and storing up to 32 codes in memory for immediate or later viewing Tessssseo 1LULGOD
93. t NO2 in particular is unstable and will join with hydrocarbons to produce H20 and N2 The Nox Aftertreatment Monitor monitors the function of the Nox aftertreatment to ensure that tailpipe emissions remain within acceptable limits The Nox Aftertreatment Monitor is supported by compression ignition vehicles only The Nox Aftertreatment Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory Boost Pressure System Monitor The boost pressure system serves to increase the pressure produced inside the intake manifold to a level greater than atmospheric pressure This increase in pressure helps to ensure compete combustion of the air fuel mixture The Boost Pressure System Monitor checks for component integrity and system operation and tests for faults in the system The computer runs this Monitor once per trip The Boost Pressure System Monitor is supported by compression ignition vehicles only The Boost Pressure System Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on
94. ter memory If no codes are present a No Enhanced DTC s are presently stored in the vehicle s computer is displayed Press the FF M ec button to return to the GM Enhanced menu VIEWING ENHANCED DTCs No Enhanced DTCs are presently stored in the vehicle s computer Press FF M to exit 3 If more than one code was retrieved press the DTC SCROLL PE button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again 4 When the last retrieved DTC has been displayed and the DTC SCROLL button is pressed the Diagnostic Tool returns to the GM Isuzu Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the FF M button The Diagnostic Tool returns to the OBD2 DTC screen Honda Acura Enhanced DTCs When the Diagnostic Tool enters the enhanced mode and Honda Acura is selected if prompted the Honda Acura Enhanced menu displays Depending on the protocol used to communicate with your vehicle the Honda Acura Enhanced menu provides options to view Confirmed DTCs or Temporary DTCs Confirmed DTCs or Pending DTCs 1 Use the UP and DOWN buttons as necessary to highlight the desired option then press the
95. the second trip the computer commands the MIL On and saves the code in its long term memory Exhaust Gas Sensor Monitor The exhaust gas sensor is used by a number of systems monitors to determine the content of the exhaust stream The computer checks for component integrity system operation and tests for faults in the system as well as feedback faults that may affect other emission control systems The Exhaust Gas Sensor Monitor is supported by compression ignition vehicles only The Exhaust Gas Sensor Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory OBD2 25 Onboard Diagnostics OBD2 MONITORS PM Filter Monitor The particulate matter PM filter removes particulate matter from the exhaust stream by filtration The filter has a honeycomb structure similar to a catalyst substrate but with the channels blocked at alternate ends This forces the exhaust gas to flow through the walls between the channels filtering the particulate matter out The filters are self cleaning by periodic modification of the exhaust gas concentration in order to burn off the trapped particles oxidizing the particles to form CO2 and water The computer m
96. the system is malfunctioning OBD2 17 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs DTCs and MIL Status When the vehicle s on board computer detects a failure in an emissions related component or system the computers internal diagnostic program assigns a diagnostic trouble code DTC that points to the system and subsystem where the fault was found The diagnostic program saves the code in the computers memory It records a Freeze Frame of conditions present when the fault was found and lights the Malfunction Indicator Lamp MIL Some faults require detection for two trips in a row before the MIL is turned on The Malfunction Indicator Lamp MIL is the accepted term Le used to describe the lamp on the dashboard that lights to warn the driver that an emissions related fault has been found Some manufacturers may still call this lamp a Check Engine or Service Engine Soon light There are two types of DTCs used for emissions related faults Type A and Type B Type A codes are One Trip codes Type B DTCs are usually Two Trip DTCs When a Type A DTC is found on the First Trip the following events take place m The computer commands the MIL On when the failure is first found m If the failure causes a severe misfire that may cause damage to the catalytic converter the MIL flashes once per second The MIL continues to flash as long as
97. this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory O Secondary Air System Monitor When a cold engine is first started it runs in open loop mode During open loop operation the engine usually runs rich A vehicle running rich wastes fuel and creates increased emissions such as carbon monoxide and some hydrocarbons A Secondary Air System injects air into the exhaust stream to aid catalytic converter operation 1 It supplies the catalytic converter with the oxygen it needs to oxidize the carbon monoxide and hydrocarbons left over from the combustion process during engine warm up 2 The extra oxygen injected into the exhaust stream also helps the catalytic converter reach operating temperature more quickly during warm up periods The catalytic converter must heat to operating temperature to work properly The Secondary Air System Monitor checks for component integrity and system operation and tests for faults in the system The computer runs this Monitor once per trip The Secondary Air System Monitor is a Two Trip monitor If a fault is found on the first trip the computer temporarily saves this fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory Non Methane Hy
98. tinuous 1 2 i conditions 80 Misfire Monitor F 3 similar Type 2 Continuous 1 conditions 80 Fuel System Monitor 3 similar Continuous 1 1or2 1 conditions 80 Catalytic Converter Once per i Monitor trip 1 S 1 3 trips 40 Oxygen Sensor Once per 3 Monitor trip 1 2 1 Snips n Oxygen Sensor Once per 7 Heater Monitor trip i 2 f Es Se Exhaust Gas Recirculation EGR OncePer 4 2 1 3 trips 40 A trip Monitor Evaporative Once per Emissions Controls P 1 2 1 3 trips 40 a trip Monitor Secondary Air Once per 2 System AIR Monitor trip l z 1 She 6a NMHC Monitor Ge 4 2 4 3 trips 40 Nox Adsorber Monitor n 1 2 1 3 trips 40 Boost Pressure Once per d System Monitor trip 1 2 GA Se Exhaust Gas Sensor Once per P Monitor trip 1 S 3 trips Ke PM Filter Monitor a 1 2 4 3 trips 40 OBD2 27 Preparation for Testing PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET The purpose of this form is to help you gather preliminary information on your vehicle before you retrieve codes By having a complete account of your vehicle s current problem s you will be able to systematically pinpoint the problem s by comparing your answers to the fault codes you retrieve You can also provide this information to your mechanic to assist in diagnosis and help avoid costly and unnecessary repairs It is important for you to complete this form to help you and or your mechanic have a clear understanding of
99. tion i 02S41 Oxygen Sensor Bank 4 Sensor 1 O2S Location 02542 Oxygen Sensor Bank 4 Sensor 2 70 OBD2 Generic Global OBD2 PID List Tool Display Unit Value PID Description OBD Support OBD2 OBD Requirements OBD Support OBD OBD Requirements OBD Support OBD and OBD Requirements OBD2 OBD Support OBD1 OBD Requirements OBD Support No OBD OBD Requirements OBD Support EOBD OBD Requirements OBD Support EOBD and OBD Requirements OBD2 OBD Support EOBD and OBD Requirements OBD OBD Support EOBD OBD Requirements OBD and OBD2 OBD Support JOBD OBD Requirements OBD Support JOBD and OBD Requirements OBD2 OBD Support JOBD and OBD Requirements EOBD OBD Support JOBD OBD Requirements EOBD and OBD2 PTO Status On Off Power Take Off Status Rel TPS XXX X Relative Throttle Position Spark Adv deg XX Ignition Timing Advance 1 Cylinder STFT B1 XXX X Short Term Fuel Trim Bank 1 STFT B1 S1 XXX X Bank 1 Sensor 1 STFT B1 S2 XXX X Bank 1 Sensor 2 STFT B1 S3 XXX X Bank 1 Sensor 3 STFT B1 S4 XXX X Bank 1 Sensor 4 STFT B2 XXX X Short Term Fuel Trim Bank 2 STFT B2 S1 XXX X Bank 2 Sensor 1 STFT B2 S2 XXX X Bank 2 Sensor 2 STFT B2 S3 XXX X Bank 2 Sensor 3 STFT B2 S4 XXX X Bank 2 Sensor 4 STFT B3 XXX X Short Term Fuel Trim Bank 3 STFT B4 XXX X Sho
100. to OBD2 systems Read and reference this list as needed to aid in the understanding of OBD2 systems 14 OBD2 Onboard Diagnostics COMPUTER ENGINE CONTROLS Powertrain Control Module PCM The PCM is the OBD2 accepted term for the vehicle s on board computer In addition to controlling the engine management and emissions systems the PCM also participates in controlling the powertrain transmission operation Most PCMs also have the ability to communicate with other computers on the vehicle ABS ride control body etc Monitor Monitors are diagnostic routines programmed into the PCM The PCM utilizes these programs to run diagnostic tests and to monitor operation of the vehicle s emissions related components or systems to ensure they are operating correctly and within the vehicle s manufacturer specifications Currently up to eleven Monitors are used in OBD2 systems Additional Monitors will be added as the OBD2 system is further developed GT Not all vehicles support all eleven Monitors m Enabling Criteria Each Monitor is designed to test and monitor the operation of a specific part of the vehicle s emissions system EGR system oxygen sensor catalytic converter etc A specific set of conditions or driving procedures must be met before the computer can command a Monitor to run tests on its related system These conditions are known as Enabling Criteria The requiremen
101. to highlight the desired display language When the desired display language is selected press the ENTER button to confirm your selection Select Unit m The Select Unit screen displays Metric Use the UP and DOWN buttons Press FF M to exit as necessary to highlight the desired unit of measurement When the desired unit of measurement is selected press the ENTER button to confirm your selection Se After the initial language and unit of measurement selections are performed these as well as other settings can be changed as desired Proceed to ADJUSTMENTS AND SETTINGS on page 63 for further instructions OBD2 CONT Diagnostic Tool Controls CONTROLS AND INDICATORS ROLS AND INDICATORS Figure 1 Controls and Indicators See Figure 1 for the locations of items 1 through 12 below 1 ERASE button Erases Diagnostic Trouble Codes DTCs and Freeze Frame data from your vehicle s computer and resets Monitor status ENTER button When in MENU mode confirms the selected option or value DTC SCROLL button Displays the DTC View screen and or scrolls the LCD display to view DTCs and the Enhanced Menu POWER LINK button When the Diagnostic Tool IS NOT connected to a vehicle turns the Diagnostic Tool On and Off When the Diagnostic Tool is connected to a vehicle links the Diagnostic Tool to the vehicle s PCM to retrieve diagnostic data from the
102. ts and procedures vary for each Monitor Some Monitors only require the ignition key to be turned On for them to run and complete their diagnostic testing Others may require a set of complex procedures such as starting the vehicle when cold bringing it to operating temperature and driving the vehicle under specific conditions before the Monitor can run and complete its diagnostic testing m Monitor Has Has Not Run The terms Monitor has run or Monitor has not run are used throughout this manual Monitor has run means the PCM has commanded a particular Monitor to perform the required diagnostic testing on a system to ensure the system is operating correctly within factory specifications The term Monitor has not run means the PCM has not yet commanded a particular Monitor to perform diagnostic testing on its associated part of the emissions system m Trip A Trip for a particular Monitor requires that the vehicle is being driven in such a way that all the required Enabling Criteria for the Monitor to run and complete its diagnostic testing are met The Trip Drive Cycle for a particular Monitor begins when the ignition key is turned On It is successfully completed when all the Enabling Criteria for the Monitor to run and complete its diagnostic testing are met by the time the ignition key is turned Off Since each of the eleven monitors is designed to run diagnostics and testing on
103. u No Powertrain DTCs or Freeze Frame data presently stored in the vehicle s computer Press the DTC button to view your Enhanced DTCs 8 To read the display Refer to DISPLAY FUNCTIONS on page 8 for a description of display elements m A visible e icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m A visible ab icon indicates that the Diagnostic Tool Reader is linked to communicating with the vehicle s computer m The I M Monitor Status icons indicate the type and number of Monitors the vehicle supports and provides indications of the current status of the vehicle s Monitors A solid Monitor icon indicates the associated Monitor has run and completed its testing A blinking Monitor icon indicates the associated Monitor has not run and completed its testing m The upper right hand corner of the display shows the number of the I M MONITOR STATUS SCH L E EOHSOSO code currently being displayed the total number of codes retrieved and whether or not the displayed code commanded the MIL on If the code DEDEDOD mare e P0743 Generic Torque Converter Clutch Solenoid Circuit Electrical being displayed is a PENDING code the PENDING icon is shown If code being displayed is PERMANENT code the PERMANENT icon is shown The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the display In the case of long code
104. uel Sys 1 a OL Drive Fuel System 1 Status Fuel Sys 1 OL Fault Fuel System 1 Status Fuel Sys 1 CL Fault Fuel System 1 Status Fuel Sys 2 OL Fuel System 2 Status Fuel Sys 2 CL Fuel System 2 Status Fuel Sys 2 OL Drive Fuel System 2 Status Fuel Sys 2 OL Fault Fuel System 2 Status Fuel Sys 2 CL Fault Fuel System 2 Status IAT C XXX XXX Intake Air Temperature F LOAD Value XXX X Absolute Load Value LTFT B1 XXX X Long Term Fuel Trim Bank 1 LTFT B2 XXX X Long Term Fuel Trim Bank 2 LTFT B3 XXX X Long Term Fuel Trim Bank 3 LTFT B4 XXX X Long Term Fuel Trim Bank 4 MAF g s l XXX XX Air Flow Rate from Mass Air Flow b min IXXXX X Sensor MAP kPa XXX Intake Manifold Absolute Pressure PSI XX X MIL On Time hrs XXXX XX Engine Run Time while MIL ON min Monitor Status ICONS on Monitor Status this Driving Cycle Display 02S B1 S1 V X XXX Bank 1 Sensor 1 O2S BI SI mA X XXX Bank 1 Sensor 1 O2S Current OBD2 69 Generic Global OBD2 PID List Tool Display Unit Value PID Description mA 02S B1 S1V V X XXX Bank 1 Sensor 1 O2S Voltage 02S B1 S2 V X XXX Bank 1 Sensor 2 O2S B1 S2 mA X XXX Bank 1 Sensor 2 O2S Current mA O2S B1 S2 V V X XXX Bank 1 Sensor 2 02S Voltage 02S B1 S3 V X XXX Bank 1 Sensor 3 O2S B1 S3 mA X XXX Bank 1 Sensor 3 O2S Current mA 02S B1 S3 V V X XXX Bank 1 Sensor
105. ufacturer s option at no charge when returned prepaid to the Service Center with Proof of Purchase The sales receipt may be used for this purpose Installation labor is not covered under this warranty All replacement parts whether new or remanufactured assume as their warranty period only the remaining time of this warranty This warranty does not apply to damage caused by improper use accident abuse improper voltage service fire flood lightning or other acts of God or if the product was altered or repaired by anyone other than the Manufacturer s Service Center The Manufacturer under no circumstances shall be liable for any consequential damages for breach of any written warranty of this unit This warranty gives you specific legal rights and you may also have rights which vary from state to state This manual is copyrighted with all rights reserved No portion of this document may be copied or reproduced by any means without the express written permission of the Manufacturer THIS WARRANTY IS NOT TRANSFERABLE For service send via U P S if possible prepaid to Manufacturer Allow 3 4 weeks for service repair SERVICE PROCEDURES If you have any questions require technical support or information on UPDATES and OPTIONAL ACCESSORIES please contact your local store distributor or the Service Center USA amp Canada 800 544 4124 6 00 AM 6 00 PM 7 days a week PST All others 714 241 6802 6 00 AM 6 00 PM 7 day
106. uous Memory Test KOEO Key On Engine Off Test or KOER Key On Engine Running Test Use the UP and DOWN buttons as necessary to highlight the desired 1 2 option then press the ENTER button When choosing to view KOER Test DTCs start the vehicle s engine before making your selection A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs If the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the Diagnostic Tool s Display Verify the ignition is ON then press the ENTER button to continue If the KOER Test was selected and the vehicle s engine is not running an advisory message shows on the Diagnostic Tool s display Press the FF M Ge button to return to the Ford Mazda Enhanced menu Ford Mazda Enhanced KOEO Test KOER Test Press FF M to exit Ford Mazda Enhanced Unable to establish a link with the vehicle Verify the ignition is ON and press Ford Mazda KOER The vehicle must be running to perform the KOER test Press FF M to exit An instructional message shows on the Diagnostic Tool s display Perform test procedures as appropriate If the Continuous Memory or KOEO test was selected turn the ignition OFF then back ON Press the ENTER button to start the test A One moment please message displays while the test is in progres
107. ur vehicle s service manual to properly check the vehicle s DLC Turn the ignition on DO NOT start the engine 5 When the Diagnostic Tool s cable connector is properly connected to the vehicle s DLC the unit automatically turns ON OBD2 33 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE m If the unit does not power on automatically when connected to the vehicle s DLC connector it usually indicates there is no power present at the vehicle s DLC connector Check your fuse panel and replace any burned out fuses m f replacing the fuse s does not correct the problem consult your vehicle s repair manual to identify the proper computer PCM fuse circuit and perform any necessary repairs before proceeding 6 The Diagnostic Tool will automatically start a check of the vehicle s computer to determine which type of communica One moment tion protocol it is using When the Auto Link is in progress Diagnostic Tool identifies the com Detecting the Protocol puters communication protocol a communication link is established The protocol type used by the vehicle s computer is shown on the display A PROTOCOL is a set of rules La and procedures for regulating Lin EE data transmission between computers and between testing equipment and computers As of this writing five different types of protocols ISO 9141 Keyword 2000 J1850 PWM J1850 VPW and CAN are in use by vehicle manufacturers The Diagno
108. ve and negative values that represent adding or subtracting fuel from the engine This program is used to correct for a lean too much air not enough fuel or rich too much fuel not enough air air fuel mixture The program is designed to add or subtract fuel as needed up to a certain percent If the correction needed is too large and exceeds the time and percent allowed by the program a fault is indicated by the computer The Fuel System Monitor is supported by both spark ignition vehicles and compression ignition vehicles The Fuel System Monitor may be a One Trip or Two Trip Monitor depending on the severity of the problem O Misfire Monitor This Monitor continuously checks for engine misfires A misfire occurs when the air fuel mixture in the cylinder does not ignite The misfire Monitor uses changes in crankshaft speed to sense an engine misfire When a cylinder misfires it no longer contributes to the speed of the engine and engine speed decreases each time the affected cylinder s misfire The misfire Monitor is designed to sense engine speed fluctuations and determine from which cylinder s the misfire is coming as well as how bad the misfire is There are three types of engine misfires Types 1 2 and 3 Type 1 and Type 3 misfires are two trip monitor faults If a fault is sensed on the first trip the computer temporarily saves the fault in its memory as a Pending Code The MIL is not commanded on at t
109. when a DTC has commanded the MIL on the vehicle s dashboard to light Code Number Sequence The Diagnostic Tool assigns a sequence number to each DTC that is present in the computer s memory starting with 01 This number indicates which code is currently displayed Code number 01 is always the highest priority code and the one for which Freeze Frame data has been stored Diagnostic Tool Controls DISPLAY FUNCTIONS If 01 is a Pending code there may or may not be Freeze Frame data stored in memory 14 Code Enumerator Indicates the total number of codes retrieved from the vehicle s computer 10 OBD2 Onboard Diagnostics COMPUTER ENGINE CONTROLS COMPUTER ENGINE CONTROLS The Introduction of Electronic Engine Controls Electronic Computer Control Systems make it possible for vehicle manufacturers to comply with the tougher emissions and fuel efficiency standards mandated by State and Federal Governments As a result of increased air pollution smog in large cities such as Los Angeles the California Air Resources Board CARB and the Environmental Protection Agency EPA set new regulations and air pollution standards to deal with the problem To further complicate matters the energy crisis of the early 1970s caused a sharp increase in fuel prices over a short period As a result vehicle manufacturers were not only required to comply with the new emissions standards they also
110. yota LEXUS Model Year Model Year 400h 2006 2008 IS 250 2006 2008 ES 330 2004 2006 IS 300 2001 2005 ES 350 2007 2008 IS 350 2006 2008 GS 300 1998 2006 LS 430 2001 2005 GS 350 2007 2008 LS 460 2007 2008 GS 400 1998 2005 LX 470 1998 2000 GS 430 1998 2006 RX 300 1999 2003 GS 450h 2007 2008 RX 330 2004 2005 GS 460 2008 RX 350 2007 2008 GX 470 2003 2008 SC 430 2002 2005 TOYOTA Model Year Model Year 4 Runner 2003 2008 Matrix 2003 2008 Avalon 2002 2008 Prius 2003 2008 Camry 2000 2008 Rav4 2003 2008 Camry Solara 2004 2008 Sequoia 2001 2008 Celica 2001 2005 Sienna 2003 2008 Corolla 2000 2008 Tacoma 2005 2008 FJ Cruiser 2007 2008 Tundra 2005 2008 Highlander 1998 2008 Yaris 2007 2008 Land Cruiser 2000 2008 OBD2 77 SRS APPLICATIONS DOMESTIC Vehicle Applications SRS Chrysler CHRYSLER Model Year Model Year 300M 1999 2004 Pacifica 2004 2006 Aspen 2006 2008 PT Cruiser 2001 2005 2WD 4WD Concorde 1999 2004 Sebring 2006 Crossfire 2004 2008 Town amp Country 1998 2007 Crossfire SRT 4 2004 2008 Voyager 2001 2003 LHS 1999 2001 DODGE Model Year Model Year Avenger 1996 2000 Nitro 1999 2000 2008 Caravan 1998 2007 Ram 1500 1999 2005 Charger 2006 2008 Ram 2500 1999 2005 Dakota 1999 2002 Ram 3500 1999 2005 Durango 1998 2003 Ram SRT 10 2004 2005 Grand Caravan 1998 2007 SRT 4 2003 2005 Intrepid 1999 2001 Stratus Coupe 1
111. your vehicle s problems NAME DATE VIN YEAR MAKE MODEL ENGINE SIZE VEHICLE MILEAGE VIN Vehicle Identification Number found at the base of the windshield on a metallic plate or at the driver door latch area consult your vehicle owner s manual for location TRANSMISSION O Automatic O Manual Please check all applicable items in each category DESCRIBE THE PROBLEM 28 OBD2 Preparation for Testing PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET WHEN DID YOU FIRST NOTICE THE PROBLEM O Just Started Started Last Week O O Started Last Month O Other LIST ANY REPAIRS DONE IN THE PAST SIX MONTHS PROBLEMS STARTING D No symptoms O Will not crank ENGINE QUITS OR STALLS D No symptoms O Right after starting O When shifting into gear O During steady speed driving IDLING CONDITIONS D No symptoms O Istoo slow at all times O Istoo fast RUNNING CONDITIONS No symptoms Runs rough Lacks power Bucks and jerks Poor fuel economy Hesitates or stumbles on accelerations Do 0 0 0 0 OBD2 Cranks but will not start Starts but takes a long time Right after vehicle comes to a stop While idling During acceleration When parking Is sometimes too fast or too slow Is rough or uneven Fluctuates up and down Backfires Misfires or cuts out Engine kno
112. ystem Monitor O Exhaust Gas Sensor Monitor PM Filter Monitor The following provides a brief explanation of the function of each Monitor O Comprehensive Component Monitor CCM This Monitor continuously checks all inputs and outputs from sensors actuators switches and other devices that provide a signal to the computer The Monitor checks for shorts opens out of range value functionality and rationality Rationality Each input signal is compared against all other dr inputs and against information in the Computere memory to see if it makes sense under the current operating conditions Example The signal from the throttle position sensor indicates the vehicle is in a wide open throttle condition but the vehicle is really at idle and the idle condition is confirmed by the signals from all other sensors Based on the input data the computer determines that the signal from the throttle position sensor is not rational does not make sense when compared to the other inputs In this case the signal would fail the rationality test The CCM is supported by both spark ignition vehicles and compression ignition vehicles The CCM may be either a One Trip or a Two Trip Monitor depending on the component 20 OBD2 Onboard Diagnostics OBD2 MONITORS Fuel System Monitor This Monitor uses a Fuel System Correction program called Fuel Trim inside the on board computer Fuel Trim is a set of positi
113. ystems OBD2 11 Onboard Diagnostics COMPUTER ENGINE CONTROLS The Basic Engine Computer Control System The Computer Control System consists of an on board computer and several related control devices sensors switches and actuators The on board computer is the heart of the Computer Control System The computer contains several programs with preset reference values for air fuel ratio spark or ignition timing injector pulse width engine speed etc Separate values are provided for various driving conditions such as idle low speed driving high speed driving low load or high load The preset reference values represent the ideal air fuel mixture spark timing transmission gear selection etc for any driving condition These values are programmed by the vehicle manufacturer and are specific to each vehicle model Most on board computers are located inside the vehicle behind the dashboard under the passenger s or driver s seat or behind the right kick panel However some manufacturers may still position it in the engine compartment Vehicle sensors switches and actuators are located throughout the engine and are connected by electrical wiring to the on board computer These devices include oxygen sensors coolant temperature sensors throttle position sensors fuel injectors etc Sensors and switches are input devices They provide signals representing current engine operating conditions to the computer
114. ystems are OK and operating en normally all Monitors supported by the Freeze Frame data presently vehicle have run and performed their computer Press the DTC self diagnostic testing The vehicle is button to vlew your ready for an Emissions Test Smog Check and there is a good possibility that it can be certified 2 YELLOW LED Determine from the CODE RETRIEVAL PROCEDURE page 33 which of the two possible conditions is causing the yellow LED to light m f a PENDING Diagnostic Trouble Code is causing the yellow LED to S pier mme I light it is possible that the vehicle will Ke be allowed to be tested for emissions P0743 Sere and certified Currently most areas Torque Converter Clutch states countries will allow an EE Emissions Test Smog Check to be performed if the only code in the vehicle s computer is a PENDING Diagnostic Trouble Code I M READINESS OBD2 57 Using the Diagnostic Tool I M READINESS TESTING m l the illumination of the Yellow LED is being caused by monitors that e eo U have not run their diagnostic No Powertrain DTCs or testing then the issue of the vehicle Freeze Frame data presently being ready for an Emissions Test computer Press the DTC Smog Check depends on the pulton to View your emissions regulations and laws of your local area I M READINESS e Some areas require that all Monitors indicate a Has Run status before they allow

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