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1. f a Monitor has not yet met all the conditions required for it to perform the self diagnosis and testing of its assigned engine system it means the Monitor HAS NOT RUN Sr The Monitor Run Not Run status does not show whether 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 computers 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 1 In most areas one of the req
2. Linking Failed message shows on the Diagnostic Tool s display Verify the ignition is ON then press the POWER LINK button to continue 2 To read the display Chrysler Enhanced One moment please Retrieving DTCs Chrysler Enhanced Unable to establish a link with the vehicle Verify the connection at the DLC Verify the ignition is ON t Refer to DISPLAY FUNCTIONS on page 9 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 A visible ap icon indicates that the 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 m The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display LS Las viewing enhanced DTCs D f Chrysler J P1250 Enga ee Vacuum reservoir control circuit open IM MONITOR STATUS icons are not displayed when 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 button to view the additional information OBD2 Using the Diagnostic Tool VIEWING ENHANCED DTCS m The Diagnos
3. 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 f the failure is found on the second consecutive trip the MIL is ordered On Freeze Frame data is saved in the Computers memory f 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 lf 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 present However the DTCs remain in the computer s memory as a history code for 40 warm up cycles 80 warm up cycles for fuel an
4. 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 Or 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 C E F Comprehensive Component Monitor Continuous 3 40 Misfire Monitor 3 similar Type 1 and 3 Continuous 2 conditions 80 Misfire Monitor 3 similar Type 2 Continuous 1 conditions 80 Fuel System Monitor A 3 similar Continuous 1or2 co
5. Check for proper battery and charging system voltages Check all electrical wiring and harnesses for proper connection Make sure wire insulation is in good condition and there are no bare wires Make sure the engine is mechanically sound If needed perform a compression check engine vacuum check timing check if applica ble etc 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 Haynes Publications 861 Lawrence Drive Newbury Park California 91320 Phone 800 442 9637 Web www haynes com 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 LEGS Web www motor com FACTORY SOURCES Ford GM Chrysler Honda Isuzu Hyundai and Subaru Service Manuals 32 Helm Inc 14310 Hamilton Avenue Highland Park Michigan 48203 Phone 800 782 4356 Web www helminc com OBD2 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE CODE RETRIEVAL PROCEDURE Retrieving and using Diagnostic Trouble Codes DTCs for troubleshooting vehicle operation is only one part of an
6. Has Run status before they allow 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 _ UMMONITOR STATUS 00000000 000 o No Powertrain DTCs or Freeze Frame Data is presently stored in the vehicle s computer SYSTEM STATUS OBD2 Using the Diagnostic Tool I M READINESS TESTING 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 systems wl MONITOR STATUS i eg 2008080900 A vehicle displaying a red LED is definitely 0000000 me not ready for an Emissions Test Smog P0743 Check The red LED is also an indication Torque ocaf that there are Diagnostic Trouble Code s present displayed on the Diagnostic Tool s screen The Multifunction Indicator 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 repai
7. 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 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 a different part of the engine or emissions system the Trip Drive Cycle needed for each ind
8. 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 monitors the efficiency of the filter in trapping particulate matter as well as the ability of the filter to regenerate self clean
9. 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 is linked to communicating with the vehicle s computer m The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved m The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display Di te aD P0100 corent Mass or Volume Air Flow Circuit IM MONITOR STATUS icons are not displayed when viewing enhanced DTCs Se 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 button 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 Enhanced DTC s are presently stored in the vehicle s computer is displayed Press the M m button to return to the Toyota Enhanced menu EN No Enhanced DTCs are presently stored in the vehicle s computer OBD2 3 Using the Diagnostic Tool VIEWING ABS DTCs If more than one code was retrieved press the DTC E button as necessary to display additional codes one at a time m Whenever the Scroll f
10. 2001 2003 GX 470 2003 2009 RX 330 2004 2006 IS 250 2006 2008 RX 350 2007 2011 IS 300 2001 2005 SC 300 1999 2000 IS 350 2006 2009 SC 400 1999 2000 IS F 2008 2009 SC 430 2002 2010 SCION Model Year Model Year tC 2005 2010 xB 2004 2006 2009 2010 xA 2004 2006 OBD2 75 Vehicle Applications ABS TOYOTA Model Year Model Year 4 Runner 2001 2011 Matrix 2003 2011 Avalon 2002 2011 MR2 Spyder 2000 2005 Camry 2000 2011 Prius 2001 2009 Camry Solara 2000 2004 2008 Rav4 2001 2003 2011 Celica 2000 2005 Sequoia 2001 2011 Corolla 2000 2008 Sienna 2001 2010 Echo 2000 2001 Tacoma 2003 2010 FJ Cruiser 2007 2011 Tundra 2000 2010 Highlander 2001 2011 Yaris 2007 excludes Hybrid models Land Cruiser 2000 2010 76 OBD2 Glossary GLOSSARY OF TERMS AND ABBREVIATIONS INTRODUCTION This Glossary contains definitions for abbreviations and terms you may find in this manual or in your vehicle service manual 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 procedures that takes into conside
11. 2011 K 3500 1996 2003 Blazer 1996 2005 Lumina 1996 C 1500 1996 2003 Malibu 1997 2011 C 2500 1996 2003 Monte Carlo 2000 2007 C 3500 1996 2003 Prizm 1998 2002 Camaro 1999 2002 S10 1996 2004 2010 2011 Cavalier 2000 2005 Silverado 1500 2004 2007 Classic 2004 2005 Silverado 2500 2004 2007 Cobalt 2005 2010 Silverado 3500 2004 2007 Colorado 2004 2011 Silverado 2007 2011 Classic 1500 Corvette 1997 2011 Silverado 2007 2011 Classic 2500 Cruze 2011 Silverado 2007 2011 Classic 3500 Equinox 2005 2011 Silverado SS 2003 2008 Express 1500 1998 2011 SSR 2003 2006 Express 2500 1998 2011 Surburban 1996 2011 Express 3500 1998 2011 Tahoe 1996 2011 Express 4500 2009 2011 Tracker 1999 2004 G10 1996 1997 TrailBlazer 2002 2009 G 20 1996 1997 Traverse 2009 2011 G 30 1996 1997 Uplander 2005 2008 HHR 2006 2011 Venture 2000 2005 Impala 2000 2011 OBD2 73 Vehicle Applications ABS GMC Model Year Model Year Acadia 2007 2011 Savana 1500 1998 2011 C 1500 1996 2003 Savana 2500 1998 2011 C 2500 1996 2003 Savana 3500 1998 2011 C 3500 1996 2003 Savana 4500 2009 2011 Canyon 2004 2011 Sierra 1500 2004 2011 Envoy 1998 2000 Sierra 2500 2004 2011 2002 2009 G 1500 1996 1997 Sierra 3500 2004 2011 G 2500 1996 1997 Sierra Classic 2007 G 3500 1996 1997 Sierra Denali 2003 2011 Jimmy 1996 2002 Sonoma 1996 2004 K 1500 1996 2003 Terrain 2010 2011 K 2500 1996
12. 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 YF 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 1 M Readiness Monitors 52 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 operation To comply with State and
13. DLC the unit automatically one ie turns ON and links to the vehicle s on i Battery voltage 13 2V board computer Detecting the Protocol ISO9141 OBD2 33 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE 34 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 If 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 5 Turn the ignition on DO NOT start the engine The Diagnostic Tool will automatically start a check of the vehicle s computer to determine which type of communication protocol it is using When the Diagnostic Tool identifies the computers communication protocol a communication link is established The protocol type used by the vehicle s computer is shown on the LCD display Se A PROTOCOL is a set of rules and procedures for regulating 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 Diagnostic Tool automatically identifies the protocol type and establishes a communication link with the vehicle s compu
14. 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 To learn more about Emissions Inspection and Maintenance VM Readiness Monitors see OBD2 MONITORS on page 23 Each Monitor has a specific function to test and diagnose only its 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 OBD2 Using the Diagnostic Tool I M READINESS TESTING 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 f 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
15. Firmware Version in the Menu then press the ENTER button m The Firmware Version screen displays m The screen shows the Diagnostic f f Too s current firmware version Firmware Versioni bootloader version and data base Bootloader version Data Base Version V1 01 00 Press the M m button to return to the Menu ADJUSTMENTS AND SETTINGS 62 The Diagnostic Tool lets you make several adjustments and settings to configure the Diagnostic 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 when the Diagnostic Tool is in MENU Mode To enter the MENU Mode 1 Adjust Brightness Adjusts the brightness of the LCD 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 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 With the Diagnostic Tool on the Code A Main Menu 6 6 Retrieval screen press and release the Select and press Vehicle Info M m button DTC Library Fir
16. Monitor cc 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 7 inputs and against information in the computer s 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 Q 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 positive and negative values that represent adding or subtracting fuel from the engine This program is used to correct for a lean too
17. Test Results 1 GREEN LED Indicates that all engine 54 systems are OK and operating normally all Monitors supported by the vehicle have run and performed their self diagnostic testing The vehicle is ready for an Emissions Test Smog Check and there is a good possibility that it can be certified YELLOW LED Determine from the CODE RETRIEVAL PROCEDURE page 33 which of the two possible conditions is causing the yellow LED to light If a PENDING Diagnostic Trouble Code is causing the yellow LED to light it is possible that the vehicle will be allowed to be tested for emissions and certified Currently most areas states countries will allow an Emissions Test Smog Check to be performed if the only code in the vehicle s computer is a PENDING Diagnostic Trouble Code gt _ M MONITOR STATUS DO 0090008000 LA 0000000 ui No Powertrain DTCs or Freeze Frame Data is presently stored in the vehicle s computer SYSTEM STATUS wm _ IM MONITOR STATUS ni 200888000 row H 0000000 Te P0743 Generic Torque Converter Clutch Solenoid Circuit Electrical SYSTEM STATUS e o m If the illumination of the Yellow LED is being caused by monitors that have not run their diagnostic testing then the issue of the vehicle being ready for an Emissions Test Smog Check depends on the emissions regulations and laws of your local area Some areas require that all Monitors indicate a
18. Web www innova com OBD2 81 TECHNICAL HABLAMOS ESPA OL SERVICE IN USA WE EMPLOY TECHNICIANS CERTIFIED BY ASE ONLY LET US SHOW YOU THEIR CREDENTIALS www innova com INNOVA Innova Electronics Corp 17352 Von Karman Avenue Irvine CA 92614 Instruction MRP 93 0307 Rev A 0 DE E o D A Copyright 2012 IEC All Rights Reserved
19. When you have finished viewing the statistics press the M m button to exit USING THE DTC LIBRARY The DTC Library function lets you search the library of OBD2 DTC definitions 1 60 Main Menu Select and press Enhanced DTCs System Voltage Check DTC Library Vehicle Info Menu Select and press Vehicle ID Available Modules IPT This vehicle does not support IPT data Press M to exit 3 6 IPT Press M to exit While linked to a vehicle press and release the M m button OBD2 Additional Functions USING THE DTC LIBRARY m The Main Menu displays 2 Use the DOWN button to highlight Main Menu 4 6 i i Select and i DTC Library in the Menu then press select and press the ENTER button System Voltage Check Vehicle Info m The Enter DTC screen displays The screen shows the code P0001 with the P highlighted 3 Use the DOWN button as necessary DTC Library to scroll to the desired DTC type DTC P0001 P Powertrain U Network B Body een Seno C Chassis then press the DTC E Press M to exit button m The selected character displays solid and the next character is highlighted 4 Select the remaining characters in the DTC in the same way pressing the DTC button to confirm each character When you have selected all the DTC characters press the ENTER button to view the DTC definition f you entered a Generic DTC
20. button to return to the Ford Enhanced menu No Enhanced DTCs are presently stored in the vehicle s computer 4 lf more than one code was retrieved press the DTC 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 Tools 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 E23 button is pressed the Diagnostic Tool returns to the Ford Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the M m button The Diagnostic Tool returns to the OBD2 DTC screen General Motors Isuzu Enhanced DTCs When the Diagnostic Tool enters the enhanced mode and GM is selected if prompted the Diagnostic Tool retrieves enhanced DTCs from the vehicle s computer 1 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 POWER LINK button to continue 2 To read the display Refer to DISPLAY FUNCTIONS H on page 9 for a description of LCD display elements m A visible e icon indicates that
21. 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 1994 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 VEHICLE Tris VEHICLE CONFORMS TO U S EPA AND STATE A MANUFACTURER OF CALIFORNIA REGULATIONS APPLICABLE TO 1999 MODEL YEAR NEW TLEV PASSENGER CARS OBD Il REFER TO SERVICE MANUAL FOR ADDITIONAL INFORMATION TUNE UP CONDITIONS NORMAL OPERATING ENGINE TEMPERATURE CERTIFIED ACCESSORIES OFF COOLING FAN OFF TRANSMISSION IN NEUTRAL EXHAUST EMISSIONS STANDARDS STANDARD CATEGORY CERTIFICATION IN USE TLEV TLEV INTERMEDIATE SPARK PLUG TYPE NGK BPRE 11 CATALYST GAP 1 1MM 2 Government Regulations require that all OBD2 compliant vehicles must have a common sixteen pin Data Link Connector DLC Some 1994 and 1995 vehicles have 16 pin connectors but are G not OBD2 compliant Only those vehicles with a Vehicle Emissions Contro
22. connected to a vehicle links the Diagnostic Tool to the vehicle s PCM to retrieve diagnostic data from the computer s memory To turn the Diagnostic Tool On you must press and hold the POWER LINK button for approximately 3 seconds 5 E ABS button When pressed displays the ABS DTCs menu 6 m M button When pressed while linked to a vehicle displays the Main Menu OBD2 7 Diagnostic Tool Controls CONTROLS AND INDICATORS 7 10 11 12 DOWN button When in MENU mode scrolls DOWN through the menu and submenu selection options When retrieving and viewing DTCs scrolls down 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 LCD display In this case the Malfunction Indicator Check Engine lamp on the vehicle s instrument panel will light steady on LCD Display Displays settings Menu and submenus test results Diagnostic Tool functions and Monitor status infor
23. 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 SP If 01 is a Pending code there may or may not be Freeze Frame data stored in memory Code Enumerator Indicates the total number of codes retrieved from the vehicle s computer 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 had to make their vehicles more fuel efficient Most vehicles were required to meet a miles per gal
24. is Freeze Frame data associated with this code and the vehicle s computer has saved it in its memory FREEZE FRAME CB m The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display In the case of long code definitions a small arrow is G shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the button to view the additional information 8 Read and interpret Diagnostic Trouble Codes system condition using the LCD display and the green yellow and red LEDs The green yellow and red LEDs are used with the LCD display as visual aids to make it easier to determine engine system conditions OBD2 35 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE m Green LED Indicates that all engine systems are OK and 2006006000 UL operating normally All monitors no 9980000 supported by the vehicle have run Freeze Frame Data is and performed their diagnostic en testing and no trouble codes are present A zero will show on the Diagnostic Tool s LCD display and all Monitor icons will be solid m Yellow LED Indicates one of the following conditions UM MONITOR STATUS n Z00GGGIDO m DL A PENDING CODE IS PRE 0000000 D SENT If the yellow LED is P0743 e cn illuminated it may indicate a Solenoid Circuit Electrical Pending code is present Check the Diagnostic Tools LCD display for co
25. not visible the Diagnostic Tool is not communicating with the computer 2 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 gt 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 Diagnostic Tool Controls DISPLAY FUNCTIONS 10 10 11 12 13 14 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 when a DTC has commanded the MIL on the vehicle s
26. 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 any test See BEFORE YOU BEGIN on page 31 for details Se ALWAYS observe safety precautions whenever working on a vehicle See SAFETY FIRST 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 Se If the Diagnostic Tool is ON turn it 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 f you have problems connecting the cable connector to the DLC rotate the connector 180 and try again f you still have problems check the DLC on the vehicle and on the Diagnostic Tool Refer to your vehicle s service manual to properly check the vehicle s DLC 4 When the Diagnostic Tools cable connector is properly connected to the vehicle s
27. press the M m button m 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 To view DTCs and other diagnostic data stored in the Diagnostic Tool s memory do the following 1 With the DLC cable not connected to the Diagnostic Tool press the POWER LINK button to turn the Tool on If DTCs are present in the Diagnostic Tool s memory the first stored DTC will display on the screen f more than one DTC is present use the DTC button to scroll through the DTCs Saved Freeze Frame data and monitor status are also available Press the DTC ERA button to view Freeze Frame data for the priority DTC DTC 1 If no DTCs are stored in the Diagnostic Tool s memory a No DTCs or Freeze Frame Data is presently stored in the tool s memory message displays OBD2 UM MONITOR STATUS ni 20066 00 P0743 Generic Torque Converter Clutch Solenoid Circuit Electrical u L FREEZE FRAME CB Fuel Sys 2 Calc Load ECT C STFT B1 No DTCs are presently stored in the tool s memory 65 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 Pe
28. s LCD 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 4 When a Monitor s Trip Drive Cycle is performed properly the Monitor icon on the Diagnostic Tool s LCD display changes from flashing to solid indicating that the Monitor has run and finished its diagnostic testing 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 If after the Monitor has run the MIL on the vehicle s dash lights and or a DTC associated with that Monitor is present in the vehicle s computer the repair was unsuccessful Refer to the vehicle s service manual and recheck repair procedures 56 OBD2 Additional Functions PERFORMING A SYSTEM VOLTAGE CHECK PERFORMING A SYSTEM VOLTAGE CHECK The Diagnostic Tool can perform a check of the vehicle s battery and charging system to ensure the system is operating within acceptable limits You can perform a battery check only or a charging system battery an
29. screen displays Press the 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 Select and press 4 Adjust Brightness Display Backlight Select Language Audible Tone Select and press 4 OFF Press M to exit To exit the Audible Tone screen and return to the Menu without making changes press the M m button OBD2 63 Additional Functions ADJUSTMENTS AND SETTINGS 64 Using the Backlight 1 Use the DOWN button to highlight Display Backlight in the Menu then press the ENTER button m The Display Backlight screen displays Press the DOWN button as necessary to select the desired backlight mode either ON or OFF When the desired backlight mode is selected press the ENTER button to save your changes Tool Setting Menu Select and press Adjust Brightness Audible Tone Select Language Display Backlight Select and press 4 OFF Press M to exit m The display returns to the Menu and the backlight turns on or off as selected To exit the Display Backlight screen and return to the Menu without making changes press the M m button Selecting the Display Language 1 Use the DOWN button to highlight Select Language in the Menu then press the ENTER button m The Select Language
30. screen displays m The currently selected display Language is highlighted Press the 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 Menu shown in the selected display language Tool Setting Menu Select and press 44 Adjust Brightness Audible Tone Display Backlight Language Francais To exit the Select Language screen and return to the Menu without making changes press the M m button Setting the Unit of Measurement 1 Use the DOWN button to highlight Unit of Measurement in the Menu then press the ENTER button Tool Setting Menu Select and press Audible Tone Display Backlight Select Language Unit of Measurement OBD2 2 Additional Functions VIEWING DTCs IN THE TOOL S MEMORY m The Unit of Measurement screen displays m The currently selected Unit of Measurement is highlighted Press the DOWN button as necessary to highlight the desired Unit of Measurement Select Unit Select and press When the desired Unit of Measurement value is selected press the ENTER button to save your changes and return to the Menu LS Exiting the MENU Mode 1 VIEWING DTCs IN THE TOOL S MEMORY Press the M m button To exit the Unit of Measurement screen and return to the Menu without making changes
31. the Diagnostic Tool is being powered through the vehicle s DLC connector m A visible ab icon indicates that the Diagnostic Tool is linked to communi cating with the vehicle s computer OBD2 GM Enhanced One moment please Retrieving DTCs GM Enhanced Unable to establish a link with the vehicle Verify the connection at the DLC i ignition is ON button P1250 Current Vacuum reservoir control circuit open 43 Using the Diagnostic Tool VIEWING ENHANCED 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 m 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 YF viewing enhanced DTCs Se 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 button 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 Enhanced eee DTC s are presently stored in the vehicle s computer vehicle s computer is displayed Press the M m button to return to the GM Enhanced menu 3 If more than one code was retrieved
32. the Scroll function is used to view additional codes the Diagnostic Tool 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 E23 button is pressed the Diagnostic Tool returns to the Honda Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the M m button The Diagnostic Tool returns to the OBD2 DTC screen OBD2 45 Using the Diagnostic Tool VIEWING ENHANCED DTCS Toyota Lexus Enhanced DTCs 46 When the Diagnostic Tool enters the enhanced mode and Toyota is selected if prompted the Diagnostic Tool retrieves enhanced DTCs from the vehicle s computer 1 A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs f 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 POWER LINK button to continue 2 To read the display Toyota Enhanced One moment please Retrieving DTCs Toyota Enhanced Unable to establish a link with the vehicle Verify the connection at the DLC Verify the ignition is ON and pres button Refer to DISPLAY FUNCTIONS on page 9 for a description of LCD display elements A visible
33. 003 Crossfire ex 2008 cludes SRT 6 DODGE Model Year Model Year Avenger 2008 2009 Neon 2000 2005 Caliber 2007 Nitro 2007 2009 Caravan 2001 2007 Ram 1500 2002 2009 Charger 2006 2009 Ram 2500 2003 2009 Charger SRT 8 2006 2009 Ram 3500 2003 2009 Dakota 2001 2009 Ram SRT 10 2004 2006 Durango 2001 2009 Sprinter 2500 2007 Grand Caravan 2001 2002 Sprinter 3500 2007 2004 2009 Intrepid 1998 2004 SRT 4 2003 2005 Journey 2009 Stratus Sedan 2001 2006 Magnum 2005 2008 Viper 2001 2002 Magnum SRT 8 2006 2007 JEEP Model Year Model Year Commander 2006 2009 Liberty 2002 2011 Compass 2007 2009 Patriot 2007 Grand Cherokee 1999 2009 Wrangler 2004 2009 Grand Cherokee 2006 2008 2009 SRT 8 OBD2 71 Vehicle Applications ABS Ford FORD Model Year Model Year Contour 1996 2000 F 350 excludes 1999 2010 Diesel engines Crown Victoria 1996 2010 F 450 excludes 2008 2010 Diesel engines E 150 excludes 1997 2010 F 550 excludes 2008 2010 Diesel engines Diesel engines E 250 excludes 1997 2010 Five Hundred 2005 2007 Diesel engines E 350 excludes 1997 2010 Flex 2009 2010 Diesel engines E 450 excludes 2008 2010 Focus 2000 2010 Diesel engines Edge 2007 2010 Freestar 2004 2007 Escape 2001 2010 Fusion 2006 2010 Escort 1997 2003 Mustang 1996 2010 Excursion 2000 2005 Ranger 1996 2010 excludes Diesel engines Expedition 1997 20
34. 10 Taurus 1996 2010 Explorer 1996 2010 Taurus X 2008 2009 Explorer Sport 2001 2005 Thunderbird 1996 2002 2005 Trac 2007 2010 F 150 excludes 1997 2010 Transit Connect 2010 1998 w Vin Z F 250 excludes 1997 2010 Windstar 1996 2003 Diesel engines LINCOLN Model Year Model Year Aviator 2003 2005 MKT 2010 Blackwood 2002 MKX 2007 2010 Continental 1996 2002 MKZ 2007 2010 LS 2002 2006 Navigator 1998 2010 Mark LT 2006 2008 Town Car 1998 2010 Mark VIII 1997 1998 Zephyr 2006 MKS 2009 2010 MERCURY Model Year Model Year Cougar 1999 2002 Montego 2005 2007 Grand Marquis 1996 2010 Mountaineer 1997 2010 Marauder 2003 2004 Mystique 1996 2000 Mariner 2005 2010 Sable 1996 2005 2008 2009 Milan 2006 2010 Tracer 1997 1999 72 OBD2 Vehicle Applications ABS GM BUICK Model Year Model Year Century 1997 2005 Park Avenue 1997 2005 Enclave 2008 2011 Rainier 2004 2007 LaCrosse 2005 2011 Regal 1997 2004 2011 LeSabre 1999 2005 Rendezvous 2002 2007 Lucerne 2006 2011 Terraza 2005 2007 CADILLAC Model Year Model Year Cavalier 2000 2005 Escalade 1999 2000 2002 2011 CTS 2003 2010 Seville 1997 2004 DeVille 1997 2005 SRX 2004 2011 DTS 2006 2011 STS 2005 2011 Eldorado 1997 2002 XLR 2004 2009 CHEVROLET Model Year Model Year Astro Van 1996 2005 K 1500 1996 2003 Avalanche 2002 2011 K 2500 1996 2003 Aveo 2004
35. 2003 Yukon 1996 2011 K 3500 1996 2003 Yukon XL 2004 2011 Denali Safari 1996 2005 HUMMER Model Year Model Year H2 2003 2009 H3 2006 2010 OLDSMOBILE Model Year Model Year Alero 1999 2004 Cutlass 1997 1999 Aurora 2001 2003 Intrigue 1998 2002 Bravada 1996 2004 Silhouette 2000 2004 PONTIAC Model Year Model Year Aztek 2001 2005 Grand Prix 2004 2008 Bonneville 2000 2005 GTO 2006 Firebird 1999 2002 Montana 2000 2005 G3 2009 Montana SV6 2005 2007 G5 2007 2009 Solstice 2006 2009 G6 2005 2010 Sunfire 2000 2005 G8 2008 2009 Torrent 2006 2009 Grand AM 1999 2005 Vibe 2003 2008 74 OBD2 Vehicle Applications ABS ABS APPLICATIONS ASIAN Honda ACURA Model Year Model Year CL 1998 1999 RL 1998 2009 2001 2003 Integra 1998 2001 RSX 2002 2006 MDX 2001 2009 SLX 1996 1999 NSX 2000 2004 TL 1997 2009 RDX 2007 2009 TSX 2004 2009 HONDA Model Year Model Year Accord 1998 2009 Odyssey 1998 2009 Civic 1996 2009 Pilot 2003 2009 CR V 1997 2009 Prelude 1997 2001 Element 2003 2008 Ridgeline 2007 2008 Fit 2007 2009 S2000 2000 2009 Insight 2000 2005 Toyota LEXUS Model Year Model Year ES 300 1999 2000 LS 400 1998 2000 2002 2003 ES 330 2004 2006 LS 430 2001 2006 ES 350 2007 2011 LS 460 2007 2011 GS 300 1998 2006 LS 600h 2008 2010 GS 350 2007 2011 LX 470 1998 2007 GS 400 1998 2000 LX 570 2008 2011 GS 430 2001 2007 RX 300
36. 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 ist 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 16 OBD2 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs Generic DTCs are codes that are used by all vehicl
37. 33 m To erase OBD2 DTCs Wait until the codes are displayed on the Diagnostic Tools LCD and then proceed to step 3 OBD2 49 Using the Diagnostic Tool ABOUT REPAIRSOLUTIONSO m To erase Enhanced or ABS DTCs Perform the Code Retrieval procedure for Enhanced DTCs as described on page 39 or for ABS DTCs as described on page 47 Wait until the codes are displayed on the Diagnostic Tool s LCD and then proceed to step 3 3 Press and release the ERASE E button A confirmation message shows on the LCD display f you are sure you want to proceed use the DOWN button to highlight YES then press the Erasing clears all DTCs ENTER a button Freeze Frame Data Select and press If you do not want to continue with the erase process use the DOWN button to highlight NO then press the ENTER button NO 4 If you chose to erase DTCs a progress screen displays while the erase function is in progress Erase was successful m f the erase was successful a confirmation message shows on the display Press the POWER LINK button to re link the Tool to the vehicle m lf the erase was not successful an advisory message shows on the display indicating the erase request was sent to the vehicle s computer Erase Request Sent Erasing DTCs does not fix the problem s that caused the code s 7 to be set If proper repairs to correct the problem that caused the code s to be set are not made t
38. B1 S1 mA X XXX Bank 1 Sensor 1 O2S Current OBD2 67 Generic Global OBD2 PID List Tool Display Unit Value PID Description mA 02S B1 S1V V X XXX Bank 1 Sensor 1 O2S Voltage O2S 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 O2S Voltage O2S B1 S3 V X XXX Bank 1 Sensor 3 O2S B1 S3 mA X XXX Bank 1 Sensor 3 O2S Current mA O2S B1 S3 V V X XXX Bank 1 Sensor 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 O2S 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 O2S 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 O2S B2 S2 V V X XXX Bank 2 Sensor 2 O2S Voltage O2S 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 O2S B2 S4 V X XXX Bank 2 Sensor 4 O2S B2 S4 mA X XXX Bank 2 Sensor 4 02S Current mA 02S B2 S4 V V X XXX Bank 2 Sensor 4 O2S Voltage O2S Location O2S11 Oxygen Sensor Bank 1 Sensor 1 O2S Location 02812 Oxygen Sensor Bank 1 Sensor 2 O2S Location O2S13 Oxygen Sensor Bank 1 Sensor 3 O2S Location z 02814 O
39. DIGITAL AZ Diagnostic Tool OWNER S MANUAL The Easiest And Best Way To Troubleshoot 1996 and Newer OBD2 Vehicles 1 M MONITOR 200600000 21 Generic Torque Converter Clutch Solenoid Circuit Electrical SYSTEM STATUS e MORTI gt e ABS ar Table of Contents INTRODUCTION WHAT IS OBD panosten s 1 YOU CAN DO MTh 4 22 25 ee een 2 SAFETY PRECAUTIONS SAFETM FIRSTI torn aae a aA AEE 3 ABOUT THE DIAGNOSTIC TOOL VEHICLES COVERED de ntie N 5 BATTERY REPLACEMENT 6 DIAGNOSTIC TOOL CONTROLS CONTROLS AND INDICATORS 7 DISPLAY FUNCTIONS i 9 ONBOARD DIAGNOSTICS COMPUTER ENGINE CONTROLS iire 11 DIAGNOSTIC TROUBLE CODES DTCs 16 OBD2 MONITORS cuina il skit 19 PREPARATION FOR TESTING PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET 28 BEFORE YOU BEGIN 31 VEHICLE SERVICE MANUALS 32 USING THE DIAGNOSTIC TOOL CODE RETRIEVAL PROCEDURE 33 VIEWING ENHANCED DTCs nns 39 VIEWING ABS DTCS ce eee a ea aapa aA 47 ERASING DIAGNOSTIC TROUBLE CODES DTCs 49 ABOUT REPAIRSOLUTIONS 50 IM READINESS TESTING eee eee testes eee teeeeeeeeeeaes 51 ADDITIONAL FUNCTIONS PERFORMING A SYSTEM VOLTAGE CHECK 57 VIEWING VEHICLE INFORMATION 58 USING THE DTC LIBRARY eee 60 VIEWING THE FIRMWARE
40. DTCs that start with PO P2 and some P3 P0743 Generic The selected DTC and DTC Is Circuit Electrical definition if available show on the Diagnostic Tools LCD display m l you entered a Manufacturer Specific DTC DTCs that start with P1 and some P3 Select Make The Select Manufacturer screen Acura E a Romeo Audi displays BMW Chrysler Use the DOWN button as necessary to highlight the appro priate manufacturer then press the ENTER button to display the correct DTC for your vehicle P1274 The DTC Definition is not If a definition for the DTC you available please visit SP entered is not available an www innova com advisory message shows on the Diagnostic Tool s display 5 If you wish to view definitions for additional DTCs press the ENTER button to return to the DTC Library screen and repeat steps 2 and 3 6 When all desired DTCs have been viewed press the M m button to exit the DTC Library OBD2 61 Additional Functions VIEWING THE FIRMWARE VERSION ADJUSTMENTS AND SETTINGS VIEWING THE FIRMWARE VERSION The Firmware Version function displays the firmware version bootloader version and database version for the Diagnostic Tool 1 While linked to a vehicle press and release the M m button The Main Menu displays Main Menu Select and press Use the DOWN button to highlight Vende mo age Check
41. 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 condi tions 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 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 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 the condition exists If the condition that caused the MIL to flash is no longer present the MIL will light steady
42. NTER button When choosing to view KOER Test DTCs start the vehicle s engine before making your selection f 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 POWER LINK button to continue OBD2 Ford Enhanced Select and press Continuous Memory Test KOEO Test KOER Test Ford Enhanced Unable to establish a link with the vehicle Verify the connection at the DLC Verify the ignition is ON 41 Using the Diagnostic Tool VIEWING ENHANCED DTCS f the KOER Test was selected and the vehicle s engine is not running an advisory message shows on the Diagnostic Tool s display The vehicle must be running Start the vehicle s engine then to perform the KOER Test Press M to exit press the ENTER button to continue 2 An instructional message shows on the Diagnostic Tool s display Perform test procedures as appropriate Ford KOER m If the Continuous Memory or KOEO test was selected turn the ignition OFF then back ON Press the Ford KOEO ENTER button to start the test ae A One moment please message W s Oo TT displays while the test is in progress f the KOER test was selected press the ENTER button to continue A One moment please message Ford KOER displays while the test is in When test sta
43. ON Language m The Select Language screen Select and press displays Espa ol Frangais 2 Use the DOWN button to highlight the desired display language 3 When the desired display language is selected press the ENTER button to Select Unit confirm your selection Select and press e e m The Select Unit screen displays Metric 4 Use the DOWN button to highlight the desired unit of measurement 5 When the desired unit of measurement is selected press the ENTER button to confirm your selection 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 60 for further instructions 6 OBD2 Diagnostic Tool Controls CONTROLS AND INDICATORS CONTROLS AND INDICATORS Figure 1 Controls and Indicators See Figure 1 for the locations of items 1 through 12 below 1 EB ERASE button Erases Diagnostic Trouble Codes DTCs and Freeze Frame data from your vehicle s computer and resets Monitor status 2 ENTER button When in Menu mode confirms the selected option or value 3 F DTC button Displays the DTC View screen and or scrolls the LCD display to view DTCs 4 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
44. Tool s display I M MONITOR STATUS icons are not displayed when viewing ABS DTCs aD Ford C1275 aes The DTC Definition is not available please visit www innova com 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 DOWN button 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 stored in the vehicle s computer is displayed Press the M m button to return to the previous Menu No ABS DTCs are presently stored in the vehicle s computer 4 If more than one code was retrieved press the DTC button as necessary to display additional codes one at a time 48 OBD2 Using the Diagnostic Tool ERASING DIAGNOSTIC TROUBLE CODES DTCs 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 E23 button is pressed the Diagnostic Tool returns to the previous Menu m To exit the enhanced mode press the M f button The Diagnostic Tool returns to the OBD2 DTC screen ERASING DIAGNOSTIC TROUBLE CODES DTCs
45. USB port Internet Connection Internet Explorer 5 5 Netscape 7 0 or Firefox 1 0 browser Accessing RepairSolutions 5 Link your Diagnostic Tool to a vehicle and retrieve diagnostic data refer to CODE RETRIEVAL PROCEDURE on page 33 for details 6 Connect the Diagnostic Tool to your PC using the USB cable provided m Your default web browser launches automatically and connects to the www innova com website m The Diagnostic Tool automatically downloads and installs the software necessary to support communication between the Diagnostic Tool and the website 7 Login to your RepairSolutions account using your registered Email Address and Password If you have not yet established an account you must Sp register for a FREE RepairSolutions account before proceeding UM 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 OBD2 51 Using the Diagnostic Tool I M READINESS TESTING On OBD2 systems the l M program is enhanced by requiring vehicles to meet stricter test standards One of the tests instituted by the Federal Government is called I M
46. VERSION 62 ADJUSTMENTS AND SETTINGS 62 VIEWING DTCs IN THE TOOL S MEMORY 65 GENERIC GLOBAL OBD2 PID LIST n 66 VEHICLE APPLICATIONS ABS ABS APPLICATIONS DOMESTIC eects 71 ABS APPLICATIONS ASIAN AA 75 GLOSSARY INTRODUCTION ll 22 naaa 77 GLOSSARY OF TERMS AND ABBREVIATIONS 77 WARRANTY AND SERVICING LIMITED ONE YEAR WARRANTY A 81 SERVICE PROCEDURES AAA 81 Introduction WHAT IS OBD WHAT IS OBD The Enhanced CanOBD2 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 on all 1996 and newer vehicles 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 access
47. When the Diagnostic Tool s ERASE function is used to Sy erase DTCs from the vehicle s on board computer Freeze Frame data and manufacturer specific enhanced data are also erased Permanent DTCs ARE NOT erased by the ERASE function 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 the F VM 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 F The Diagnostic Tool must be connected to the vehicle s DLC to erase the codes from the computer s memory If you press the ERASE ES button when the Diagnostic Tool is not connected to the vehicle s DLC the erase instruction screen displays 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
48. 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 fin INN 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 Fuel Sys 1 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 XXX 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
49. age 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 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 te
50. an 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 m 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 board diagnostic system capable of addressing all of these problems was needed This ne
51. cated 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 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 E Exhaust Gas Recirculation EGR Monitor The Exhaust Gas Recirculation EGR system helps reduce the formation of Oxides of Nit
52. currently dis EE A G DI played code is not available an O razzie Te advisory message shows on the P1639 Romeo Diagnostic Tools LCD display The DTC Definition is not available please visit If more than one code was retrieved press Www innova com 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 Each time the DTC F button is pressed and released the Diagnostic Tool will scroll and display the next DTC in sequence until all DTCs in its memory have displayed Freeze Frame Data if available will display after DTC 1 37 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE 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 Fuel sys 2 malfunction occurred is also saved in EC the vehicle s computer memory The SIT B1 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 than one DTC to be set only the code with the highest priority will contain Freeze Frame data T
53. d alternator check To perform a battery check ONLY 1 4 With the Diagnostic Tool on the Code Retrieval screen press and release the M m button m The Main Menu displays Use the DOWN button to highlight System Voltage Check then press the ENTER button Main Menu 2 6 Select and press Enhanced DTCs Vehicle Info DTC Library m A One moment please message displays while the Diagnostic Tool retrieves the requested information When the battery check is complete a results screen displays the current Battery Voltage and indicates whether or not the voltage is within acceptable limits The System Status LEDs provide a PASS FAIL indication as follows m Green PASS Yellow Caution LOW Red FAIL Battery Voltage 12 3 V Battery test is PASS Press the M m button to return to the Main Menu To perform a charging system check 1 2 OBD2 Start the engine With the Diagnostic Tool on the Code Retrieval screen press and release the M m button m The Main Menu displays Use the DOWN button to highlight System Voltage Check then press the ENTER button m A One moment please message displays while the Diagnostic Tool retrieves the requested information When the battery check is complete a results screen displays the current Battery Voltage Main Menu 2 6 Select and press 4 4 Enhanced DTCs Vehicle Info DTC Library Batte
54. d 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 49 before erasing codes from the computers memory If a Diagnostic Tool or Scan Tool 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 Monitors Currently fifteen Monitors are supported by OBD2 systems Additional monitors may be added as a result of Govern
55. dal 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 SE Sensor 1 CAT Temp 12 C XXXX X Catalyst Temperature Bank 1 F 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 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 s 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 X XXX Bank 1 Sensor 3 Equivalence Ratio EQ Ratio 14 X XXX Bank 1 Sensor 4 Equivalence 66 OBD2 Generic Global OBD2 PID List Tool Display Unit Value PID Description Ratio EQ Ratio 21
56. displayed m The Diagnostic Tool is capable of retrieving and storing up to 32 codes in memory for immediate or later viewing 7 Toreadthe display Refer to DISPLAY FUNCTIONS on page 9 for a descrip E tion of LCD display elements A visible e icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector A visible ab icon indicates that the Diagnostic Tool 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 dis play shows the number of the code ua le currently being displayed the total 0990 9 number of codes retrieved the type of P0743 Generic code and whether or not the displayed Torque Converter Clutch code commanded the MIL on If the Soleneld Elrcult El ctrica code being displayed is a PENDING code the PENDING icon is shown Freeze Frame data is always associated with the Priority Code identified as Code 1 in the Diagnostic Tool s display If the FREEZE FRAME icon is lit when the Priority Code Code 1 is displayed on the Diagnostic Tool s screen it indicates that there
57. e 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 O Anytime ENGINE TEMPERATURE WHEN PROBLEM OCCURS O Cold O Warm O Hot DRIVING CONDITIONS WHEN PROBLEM OCCURS O Short lessthan2 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 O 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 O Drive 10 to 50 miles per day O Park vehicle inside O 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 D 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 O Other 30 OBD2 Preparation for Testing BEFORE YOU BEGIN BEFORE YOU BEGIN The nostic Tool aids in monitoring electronic and emissions related faults in your vehicle and retri malfunctions
58. e 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 SI 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 Short Term Fuel Trim Bank 4 Time DTC Cir hrs XXXX XX Time since DTC Cleared min Time Since sec XXXX Time Since Engine Start Start TPS XXX X Absolute Throttle Position TPSB XXX X Absolute Throttle Position B TPSC XXX X Absolute Throttle Position C OBD2 69 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 Cir 70 OBD2 Vehicle Applications ABS ABS APPLICATIONS DOMESTIC Chrysler CHRYSLER Model Year Model Year 300 2005 2009 LHS 1998 2001 300 SRT 8 2007 2009 Pacifica 2004 2006 300m 1999 2004 PT Cruiser 2001 2009 Aspen 2007 2009 Sebring 2001 2010 Caliber SRT 4 2007 Town 8 Country 2001 2009 Concorde 1998 2004 Voyager 2001 2
59. e manu facturers The standards for generic DTCs as well as their definitions are set by the Society of Automotive Engineers SAE 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 F Manufacturer Specific DTCs are codes that are controlled by OBD2 DTC EXAMPLE P0201 Injector Circuit Malfunction Cylinder 1 B Body 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 the system is malfunctioning OBD2 17 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs DTCs and
60. ed 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 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 CanOBD2 Diagnostic Tool is required to retrieve these codes which consumers and professionals use as a starting point for repairs The Enhanced CanOBD2 Diagnostic Tool provides the additional ability to retrieve enhanced DTCs from most Chrysler Jeep Ford Mazda GM Isuzu Honda Acura and Toyota Lexus vehicles as well as Anti Lock Brake System ABS DTCs and vehicle information The types of enhanced data available depends on the vehicle make To learn more about vehicle Computer Control Systems and OBD2 see COMPUTER ENGINE CONTROLS on page 15 OBD2 1 You Can Do It EASY TO USE EASY TO VIEW EASY TO DEFINE Easy To Use m Connect the Diagnostic Tool to the vehicle s test connector Turn the ignition key On m The Diagnostic Tool automatically links to the vehicle s computer Easy To View m The Diagnostic Tool retrieves stored codes Freeze Frame data and System 206686000 DL Status 10090000 P0743 Generic Codes UM Monitor Status and Freeze Torque Converter Clutch Frame data are displayed on the Solenoid Circuit Electrical Diagnostic Tool s LCD display screen System S
61. er 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 Ba Z CQ 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 0BD1 With the exception of some 1994 and 1995 vehicles most vehicles from 1982 to 1995 are equipped with some type of first generation On Board Diagnostics Beginning in 1988 Calif
62. ethane 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 O 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 it NO2 in particular is unstable and will join with hydrocarbons to produce H20 and N2 The NOx Aftertreatment Monitor monitors the
63. 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 the second trip the computer commands the MIL On and saves the code in its long term memory O Exhaust Gas Sensor Monitor
64. g 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 O Oxygen Sensor Monitor The Oxygen Sensor monitors how much oxygen is in the vehicle s exhaust lt generates a varying volt
65. he vehicle make or if a Manufacturer specific DTC was retrieved and the FotdiEnhanc d manufacturer selected for the code was Ford the Select Data menu KOEO Test displays Use the DOWN button press M Lo exit to highlight the desired option then press the ENTER button to view the selected information or press M m button to exit and return to the previous Menu f a Manufacturer specific DTC was retrieved and the manufacturer selected for the code was not Chrysler a Jeep Ford Mazda General Motors Ee Isuzu Honda Acura Toyota or Lexus communication An advisory message displays Press the M m button to return to the previous menu Enhanced data is not available for your vehicle OBD2 39 Using the Diagnostic Tool VIEWING ENHANCED DTCS Refer to the appropriate paragraph to view enhanced DTCs for your vehicle m Chrysler Jeep Enhanced DTCs Ford Mazda Enhanced DTCs GM Isuzu Enhanced DTCs Honda Acura Enhanced DTCs Toyota Lexus Enhanced DTCs Chrysler Jeep Enhanced DTCs 40 page 40 page 41 page 43 page 44 page 46 When the Diagnostic Tool enters the enhanced mode and Chrysler is selected if prompted the Diagnostic Tool retrieves enhanced DTCs from the vehicle s computer 1 A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs f the Diagnostic Tool fails to link to the vehicle s computer a
66. he 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 SS If more than one malfunction is present that causes more Se Retrieved information can be uploaded to a Personal Computer PC with the use of optional software see instructions included with the software for more information 10 When the last retrieved DTC has been displayed and the DTC F button is pressed the display returns to the first DTC retrieved 11 Determine engine system s condition by viewing the Diagnostic Tool s LCD display for any retrieved Diagnostic Trouble Codes code definitions Freeze Frame data and interpreting the green yellow and red LEDs If 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 Mo
67. he 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 ABOUT REPAIRSOLUTIONS 50 RepairSolutions is a web based service created to assist both the do it yourselfer and professional technicians in quickly and accurately diagnosing and repairing today s vehicles RepairSolutions allows you to view save and email the diagnostic data retrieved from a vehicle s on board computer s using the Diagnostic Tool RepairSolutions also provides access to an extensive knowledge database including Verified Fixes Find the most likely fixes reported and verified by ASE Technicians for the retrieved DTCs m Step By Step Repair Instructions View available repair instructions to properly perform the fix m How To Repair Videos Watch repair video tutorials for valuable repair tips OBD2 Using the Diagnostic Tool I M READINESS TESTING Technical Service Bulletins Research known problems reported by vehicle manufacturers m Safety Recalls Research known safety concerns applicable to a vehicle And much more Please visit www innova com for additional information Hardware Requirements m Diagnostic Tool m Mini USB Cable included with tool Minimum System Operating Requirements Windows PC System Windows XP Windows Vista or Windows 7 128 MD Ram Pentium III Processor One available
68. he repair has been performed correctly and or to check for Monitor Run Status Use the following procedure to determine I M Readiness Monitor Status 1 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 OBD2 55 Using the Diagnostic Tool I M READINESS TESTING 2 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 47 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 3 After the erase procedure is performed most of the Monitor icons on the Diagnostic Tool s LCD display will be flashing Leave the Diagnostic Tool connected to the vehicle and perform a Trip Drive Cycle for each flashing Monitor Misfire Fuel 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 m While observing the Monitor icons on the Diagnostic Tool
69. he 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 Is too 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 knocks pings or rattles Surges Dieseling or run on 29 Preparation for Testing PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET AUTOMATIC TRANSMISSION PROBLEMS if applicabl
70. in these systems Mechanical problems such as low Enhanced CanOBD2 Diag eving fault codes related to oil level or damaged hoses wiring or electrical connectors can cause poor engine performance and may also cause a fault code to set Fix you any known mechanical problems before performing any test See r vehicle s service manual or a mechanic for more information Check the following areas before starting any test OBD2 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 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 Make sure all engine belts are in good condition Check for cracked torn brittle loose or missing belts 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 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 Make sure all spark plugs are clean and in good condition Check for damaged loose disconnected or missing spark plug wires Make sure the battery terminals are clean and tight Check for corrosion or broken connections
71. ine 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 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 CanOBD2 Diagnostic Tool is designed to work on all OBD2 compliant vehicles All 1996 and newer vehicles
72. ing IPT the M m button to exit 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 started IGNCNTR 1 While linked to a vehicle press and release the M m button m The Main Menu displays Use the DOWN button to highlight Vehicle Info then press the ENTER O button m The Vehicle Info Menu displays Use the DOWN button to highlight IPT then press the ENTER button A One moment please message displays while the requested information is retrieved from the vehicle s computer m f In use Performance Tracking is not supported by the vehicle under test an advisory message shows on the Diagnostic Tool s display Press the M m button to exit When the retrieval process is completed In use Performance Tracking statistics for monitors supported by the vehicle under test are shown on the Diagnostic Tool s display Use the DOWN button to view the entire list
73. ividual 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 E A Trip Drive Cycle provides the Enabling Criteria for one specific Monitor to run and complete ts 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 Cycle Vehicle operation after an engine off period where engine temperature rises at least 40 F
74. l 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 the panel on the driver s side of most vehicles It should be easily accessible and visible from a kneeling position outside the vehicle with the door open OF DASH OF DASH OBD2 5 About the Diagnostic Tool BATTERY REPLACEMENT On some Asian and European vehicles the DLC is located SP 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 gt is visible on display and or the 3 LEDS are all lit and no other data is visible on screen 1 Locate the battery cover on the back of the Diagnostic Tool 2 Slide the battery cover off use your fingers 3 Replace batteries with two AA size batteries for longer life use Alkaline type batteries 4 Reinstall the battery cover on the back of the Diagnostic Tool Adjustments After Battery Installation The first time the unit 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 button to turn the Diagnostic Tool
75. licable to model year 2000 and Sr newer OBD2 compliant vehicles The Diagnostic Tool can retrieve a list of information provided by the vehicle manufacturer unique to the vehicle under test from the vehicle s on board computer This information may include m The vehicle s VIN number The control module identification number m The vehicle s calibration ID s These IDs uniquely identify the software version s for the vehicle s control module s m 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 1 While linked to a vehicle press and release the M m button 58 OBD2 Additional Functions VIEWING VEHICLE INFORMATION m The Main Menu displays 2 Use the DOWN button to highlight Vehicle Info then press the ENTER sciect ano press es 79 Enhanced DTCs button System Voltage Check Vehicle Info m The Vehicle Info Menu displays DTC Library 3 Use the DOWN button to highlight Vehicle ID then press the ENTER button Vehicle Info Menu 4 A One moment please message moo displays while the requested information is S Avallable Modules retrieved from the vehicle s computer The first time the Vehicle ID function SP is used it may take several minutes to retrieve the informatio
76. lon 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 systems OBD2 11 Onboard Diagnostics COMPUTER ENGINE CONTROLS The Basic Engine Compute
77. mation See DISPLAY FUNCTIONS on next page for more details CABLE Connects the Diagnostic Tool to the vehicle s Data Link Connector DLC OBD2 Diagnostic Tool Controls DISPLAY FUNCTIONS DISPLAY FUNCTIONS 2 1 11 12 13 D TA Sun 1 M MONITOR STATUS Ea Ni 00000000 Mm f 0000000 Ann Y P0743 Generic 14 Torque Converter Clutch 9 Solenoid Circuit Electrical Figure 2 Display Functions See Figure 2 for the locations of items 1 through 14 below 1 2 OBD2 IM MONITOR STATUS field Identifies the UM Monitor status area 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 ap Link icon Indicates whether or not the Diagnostic Tool is communicating linked with the vehicle s on board computer When visible the Diagnostic Tool is communicating with the computer If the Link icon is
78. ment 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 Q 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 Oxygen Sensor Monitor D Oxygen Sensor Heater Monitor Q Catalyst Monitor Heated Catalyst Monitor O EGR System Monitor 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 O NOx Adsorber Monitor Boost Pressure System Monitor Exhaust Gas Sensor Monitor PM Filter Monitor The following provides a brief explanation of the function of each
79. 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 this time If the fault is found again on the second trip under similar conditions of engine speed load and temperature the comp
80. mware Version m The Main Menu displays OBD2 Additional Functions ADJUSTMENTS AND SETTINGS 2 Use the DOWN button to highlight Tool Settings then press the ENTER button m The Tool Setting Menu displays 3 Make adjustments and settings as described in the following paragraphs Adjusting Display Brightness 1 Use the DOWN button to highlight Adjust Brightness in the Menu then press the ENTER button m The Adjust Brightness screen dis plays The Brightness field shows the current brightness setting from 1 4 Press the DOWN button to increase the brightness of the LCD display make the display lighter When the maximum brightness setting is reached and the DOWN button is pressed the display returns to the minimum brightness setting Tool Setting Menu Select and press Audible Tone Display Backlight Select Language Tool Setting Menu Select and press 4 Audible Tone Display Backlight Select Language Brightness 3 Select and press Darker Lighter 4 Press M to exit When the desired brightness is obtained press the ENTER button to save your changes and return to the Menu To exit the Adjust Brightness screen and return to the Menu without making changes press the M m button Enabling the Audible Tone 1 Use the DOWN button to highlight Audible Tone in the Menu then press the ENTER button m The Audible Tone
81. n from the vehicle s computer 5 When the retrieval process is completed the vehicle ID information is shown on the Diagnostic Tool s display Use the Vehicle ID DOWN button to view the entire list e SE A Cal ID HYBGH31x HEX 6 When you have finished viewing the CVN ES 6C 02 6E Press M to exit retrieved vehicle ID information press the M m button to exit Viewing Available Modules The Diagnostic Tool can retrieve a list of modules supported by the vehicle under test 1 While linked to a vehicle press and release the M m button m The Main Menu displays Main end 378 Select and press Enhanced DTCs 2 Use the DOWN button to highlight System Voltage Check Vehicle Info then press the ENTER DTC Library button m The Vehicle Info Menu displays 3 Use the DOWN button to highlight nda Available Modules then press the SE ENTER button PT 4 A One moment please message displays while the requested information 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 MICH sora Diagnostic Tools display Use the DOWN button to view the entire list Available Modules Press M to exit OBD2 59 Additional Functions USING THE DTC LIBRARY 6 When you have finished viewing the list of available modules press Viewing In use Performance Track
82. n of LCD display elements A visible icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector A visible ap icon indicates that the Diagnostic Tool is linked to communicating with the vehicle s computer m The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved m The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display 2 OL 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 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 button to view the additional information Sr viewing enhanced 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 M m button to return to the Honda Enhanced menu No Enhanced DTCs are presently stored in the vehicle s computer 3 If more than one code was retrieved press the DTC button as necessary to display additional codes one at a time m Whenever
83. nditions 80 Catalytic Converter Once per K Monitor trip 2 strips 40 Oxygen Sensor Once per f Monitor trip 2 s trips 40 Oxygen Sensor Once per R Heater Monitor trip 2 3 trips 40 Exhaust Gas Recirculation EGR Once Per 2 3 trips 40 A trip Monitor Evaporative Onte per Emissions Controls SH 2 3 trips 40 trip Monitor Secondary Air Once per E System AIR Monitor trip 2 strips 40 NMHC Monitor Once per 2 3 trips 40 trip NOx Adsorber Once per A Monitor trip 2 3 trips 40 Boost Pressure Once per x System Monitor trip 2 3 trips 40 Exhaust Gas Sensor Once per 3 Monitor trip 2 3 trips 440 PM Filter Monitor Se 2 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 your vehicle s problems NAME DATE VIN YEAR MAKE MODEL ENGINE SIZE VEHICLE MILEAGE VIN Vehicle Identification Number found at the base of t
84. nfirmation A Pending code is confirmed by the presence of a numeric code and the word PENDING on the ee Diagnostic Tool s LCD display ALLEIN o No Powertrain DTCs or B MONITOR NOT RUN Innen STATUS If the Diagnostic vericie s computer Tools LCD display shows a zero indicating there are no DTC s present in the vehicle s computer memory but the yellow LED is illuminated it may be an indication that some of the Monitors supported by the vehicle have not yet run and completed their diagnostic testing Check the Diagnostic Tools LCD 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 Sg mon TOR STATUS a e 200800000 gt LA problem with one or more of the 0000000 Mme De vehicle s systems The red LED is P0743 i i T C rter Clutch also used to indicate that DTC s are Torque OE ri present displayed on the Diagnostic Tool s screen In this case the Multifunction Indicator Check Engine lamp on the vehicle s instrument panel will be illuminated SYSTEM STATUS m Flashing Red and Yellow LEDs Indicates that a permanent code has been set and one or more of the vehicle s monitors has failed its diagnostic testing A permanent DTC can be cleared only by the vehicle s computer following successful completion of the monit
85. nitor Status and Freeze Frame data if any will remain in the Diagnostic 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 38 OBD2 Using the Diagnostic Tool VIEWING ENHANCED DTCS VIEWING ENHANCED DTCs The enhanced mode provides the ability to retrieve enhanced DTCs from most Chrysler Jeep Ford Mazda GM lsuzu 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 To view Enhanced DTCs 1 With the Diagnostic Tool on the Code Retrieval screen press and release the M m button Main Menu 1 6 m The Main Menu displays amara System Voltage Check 2 Use the DOWN button to highlight y Enhanced DTCs then press the ENTER button 3 The screen shown when Enhanced DTCs is selected from the Main Menu depends on the type s of DTC s returned during the code retrieval process l no DTCs were retrieved or only generic DTCs were retrieved the Select Manufacturer screen displays Enhanced DTCs Use the DOWN button to SE ent press highlight the appropriate FL manufacturer then press the Exit ENTER button to view the selected information f the Diagnostic Tool recognizes t
86. or that caused the fault to set 36 OBD2 OBD2 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE 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 for Generic DTC s DTC s that start with P1 and some P3 are Manufacturer Specific codes and their code definitions vary with See Make each vehicle manufacturer When a More KE Manufacturer Specific DTC is Chrysler retrieved the LCD display shows a list gt of vehicle manufacturers Use the DOWN button 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 use the DOWN button 2 to highlight YES then press the You have selected ENTER button to continue Acura Select and press If the correct manufacturer is not YES NO shown use the DOWN O button to highlight NO then press the ENTER button to return to the list of vehicle manufacturers F If the manufacturer for your vehicle is not listed use the GP If the Manufacturer Specific the DTC F button as necessary to DOWN button to select More and press the ENTER button for additional manufacturers definition for the
87. ornia 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 OBD1 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 Diagnostic Tool or a Scan Tool On Board Diagnostics Second Generation OBD2 In addition to performing all the functions of the OBD1 System the OBD2 System has been enhanced with suit se new Diagnostic Programs These programs closely monitor the functions of various emissions related compo nents and systems as well as other systems and make this information readily available with the proper equipment to the technici
88. p also referred to as Check Engine light OBD1 On Board Diagnostics Version 1 also referred to as OBD l 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 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 ts diagnostic testing VECI Vehicle Emission Control Information Decal 78 OBD2 OBD2 79 80 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 Manufacturers option at no charge when returned
89. port ABS communication an advisory message shows on the Diagnostic Tools display Press the DTC E button to return to the previous display This vehicle does not support ABS Communication 47 Using the Diagnostic Tool VIEWING ABS DTCs m 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 connection at the DLC and verify the ignition is ON Ford ABS Unable to establish a link with the vehicle Verify the connection at the DLC Verify the ignition is ON and pres button Turn the ignition OFF wait 5 seconds then turn back ON to reset the computer 3 To read the display Refer to DISPLAY FUNCTIONS on page 9 for a description of LCD display elements 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 is linked to communicating with the vehicle s computer m The upper right hand corner of the display shows the number of the code currently being displayed the 274 For total number of codes retrieved CL 274 ABS whealsepeea m The Diagnostic Trouble Code DTC eee eel E y and related code definition are shown in the lower section of the LCD display If the definition for the currently displayed code is not available an advisory message shows on the Diagnostic
90. 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 Monday Saturday PST All others 714 241 6802 6 00 AM 6 00 PM Monday Saturday PST FAX 714 432 3979 24 hr
91. press the DTC 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 3 button is pressed the Diagnostic Tool returns to the GM Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the M m button The Diagnostic Tool returns to the OBD2 DTC screen Honda Acura Enhanced DTCs 44 When the Diagnostic Tool enters the enhanced mode and Honda is selected if prompted the Diagnostic Tool retrieves enhanced DTCs from the vehicle s computer r 1 A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs Honda Enhanced Honda Enhanced Unable to establish a link lf the Diagnostic Tool fails to link to with the vehicle Verify the H 7 Si H ti t the DLC the vehicle s computer a Linking Verify the ignition is ON Failed message shows on the and press amp button Diagnostic Tool s display OBD2 Using the Diagnostic Tool VIEWING ENHANCED DTCS Verify the ignition is ON then press the POWER LINK button to continue 2 To read the display Refer to DISPLAY FUNCTIONS on page 9 for a descriptio
92. r 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 Actuators are output devices They perform actions in response to commands received from the comput
93. ration 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 System Status An indication of whether or not a vehicle s emissions related system are operating properly and are ready for Inspection and Maintenance testing 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 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 OBD2 77 Glossary GLOSSARY OF TERMS AND ABBREVIATIONS Manufacturer Specific Code A DTC that applies only to OBD2 compliant vehicles made by a specific manufacturer MIL Malfunction Indicator Lam
94. red before driving the vehicle further 4 Flashing Red and Yellow LEDs Indicates that a permanent code has been set and one or more of the vehicle s monitors has failed its diagnostic testing A permanent DTC can be cleared only by the vehicle s computer following successful completion of the monitor that caused the fault to set If the Red LED or flashing RED and YELLOW LEDs were 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 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 related DTCs These DTCs will not command the MIL on since they are not emission related If the Diagnostic Tool retrieves one of these types of codes the MIL will not be commanded on and the Yellow LED on the Diagnostic Tool will be illuminated In most cases these types of codes will not prevent the Emissions Test from being performed Se On some vehicle models the computer will store non emission 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 t
95. rm memory D 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 O Non Methane Hydrocarbon Catalyst NMHC Monitor The non methane hydrocarbon catalyst is a type of catalytic converter lt helps to remove non m
96. rogen 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 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 burned during combustion The EVAP system may consist of a charcoal canister fuel tank cap purge solenoid vent solenoid flow moni
97. rts do the progress following Turn the steering wheel to the E 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 9 for a description of LCD display elements A visible es icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector A visible ab icon indicates that the Diagnostic Tool is linked to communicating with the vehicle s computer m The upper right hand corner of the display shows the number of the code currently being displayed the a total number of codes retrieved P1250 06 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 LS 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 button to view the additional information 42 OBD2 Using the Diagnostic Tool VIEWING ENHANCED 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 M m
98. ry Voltage 12 3 V Press the button to perform Alternator test Press the ENTER button to perform the alternator check An instructional screen displays 57 Additional Functions VIEWING VEHICLE INFORMATION 6 Press the accelerator pedal to raise engine speed to 1500 1700 RPM and maintain the engine speed for 10 dute ee seconds for 10 sec at 1500 1700 RPM When engine speed is within the required range the alternator test begins A progress screen shows the Engine RPM and Count down time remaining until the test is complete Engine RPM 1640 Alternator test in progress 7 When the alternator check is complete a results screen displays the current Alternator Voltage and indicates whether or not the voltage is within acceptable limits The System Status LEDs provide a PASS FAIL indication as follows m Green PASS m Yellow Caution LOW m Red FAIL un If the alternator voltage is less than 9 V the red yellow and green SYSTEM STATUS LEDs will flash on and off 8 Press the M m button to return to the Main Menu Count down 8s Engine RPM 1640 System Voltage Check Alternator Voltage 13 82 V VIEWING VEHICLE INFORMATION The Diagnostic Tool 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 app
99. 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 m 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 vehicles manufacturer specifications Currently up to fifteen Monitors are used in OBD2 systems Additional Monitors will be added as the OBD2 system is further developed F Not all vehicles support all fifteen Monitors 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 requirements and procedures vary for each Monitor Some Monitors only require the ignition key to be turned
100. tatus is indicated by LED indicators Easy To Define avons Gian m Read code definitions from the Diagnostic Tool s LCD display m View Freeze Frame data Calc Load Freeze Frame Data P0113 2 OBD2 Safety Precautions SAFETY 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 eng
101. ter 6 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 If the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the i i 4 i Unable t tablish a link Diagnostic Tool s LCD display wae ea P P A connection at the DLC Verify the connection at the DLC Verify the ignition is ON and verify the ignition is ON 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 The Diagnostic Tool will automati cally re link to the vehicle s com puter every 30 seconds to refresh the data being retrieved When data One moment is being refreshed the message AUTO LINK is in One moment Auto link in progress progress is shown on the LCD Linked to ISO 9141 display This action repeats as long as the Diagnostic Tool is communicating with the vehicle s computer 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 including enhanced codes are present a No Powertrain DTCs or Freeze Frame Data is presently stored in the vehicle s computer message is
102. tic 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 M m button to return to the Chrysler Enhanced menu No Enhanced DTCs are presently stored in the vehicle s computer 3 If more than one code was retrieved press the DTC 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 4 When the last retrieved DTC has been displayed and the DTC E23 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 M m button The Diagnostic Tool returns to the OBD2 DTC screen Ford Mazda Enhanced DTCs Mazda Enhanced DTCs are available for Mazda branded Ford vehicles only When the Diagnostic Tool enters the enhanced mode and Ford is selected if prompted the Ford Enhanced menu displays You may view DTCs for either the Continuous Memory Test KOEO Key On Engine Off Test or KOER Key On Engine Running Test 1 Use the DOWN button to highlight the desired option then press the E
103. tor 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 OH 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 open loop and closed loop The vehicle operates in open loop when the engine is cold before it reaches normal operatin
104. uirements that must be 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 OBD2 53 Using the Diagnostic Tool I M READINESS TESTING Monitors with a Has Run status indicate that all the required conditions they needed to perform diagnosis and testing of their assigned engine area system have been met and all diagnostic testing has completed successfully Monitors with a Has Not Run status have not yet met the Sr 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
105. unction 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 F button is pressed the Diagnostic Tool returns to the Toyota Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above To exit the enhanced mode press the M m button The Diagnostic Tool returns to the OBD2 DTC screen VIEWING ABS DTCs Refer to Vehicle Applications ABS on page 71 for vehicles covered Reading ABS DTCs 1 From the OBD2 DTC screen or Enhanced DTC screen press the ABS 9 button If no OBD2 DTCs were retrieved or only generic DTCs were retrieved the Select Manufacturer screen displays Use the DOWN button to highlight the appropriate manufacturer then press the ENTER button to continue or highlight Exit and press the ENTER button to return to the previous Menu The Scan Tool will start a check of the vehicle s computer to determine which type of communication protocol it is using When the Scan Tool identifies the computers communication protocol a communication link is established ABS DTCs Select and press 4 GM Honda Ford ABS Detecting the protocol 2 A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs OBD2 If the vehicle does not sup
106. uter 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 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 converter by monitoring the oxygen sensors used by the system One sensor is located before upstream of the converter the other is lo
107. w 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 to OBD2 systems Read and reference this list as needed to aid in the understanding of OBD2
108. xygen Sensor Bank 1 Sensor 4 O2S Location 02521 Oxygen Sensor Bank 2 Sensor 1 O2S Location a 02522 Oxygen Sensor Bank 2 Sensor 1 O2S Location 02523 Oxygen Sensor Bank 2 Sensor 3 O2S Location 5 02524 Oxygen Sensor Bank 2 Sensor 4 O2S Location ai 02811 Oxygen Sensor Bank 1 Sensor 1 O2S Location 02812 Oxygen Sensor Bank 1 Sensor 2 O2S Location 02821 Oxygen Sensor Bank 2 Sensor 1 O2S Location 02522 Oxygen Sensor Bank 2 Sensor 2 O2S Location 02831 Oxygen Sensor Bank 3 Sensor 1 O2S Location 2 02532 Oxygen Sensor Bank 3 Sensor 2 O2S Location si 02841 Oxygen Sensor Bank 4 Sensor 1 O2S Location S 025842 Oxygen Sensor Bank 4 Sensor 2 68 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 Tak

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