Actron 9620 Automobile Parts User Manual
Contents
1. 17 2 3 10 Record Datta 00 ccccccceeeeeeee 17 2 3 11 Vehicle INFO ccccccccccccceeeeeeeee 18 2 3 12 Modules Present 00 19 2 3 13 Review Data 0 ccccccceeeeeeee 19 2 3 14 Print Data cccccccccccctceeeeeeee 20 Section 3 Diagnostic Trouble Codes DTC 22 3 1 DTC Format ccecccseseceeeseeeeeeees 22 3 2 Code LOOKUP sseceseeeeesteeeeeeee 23 3 3 Diagnostic Trouble Code Ranges 24 Section 4 Help and Trouble shooting Tips 25 4 1 Howto Use Help cceseeseeeeenes 25 4 2 Scan Tool Problems 0 25 4 2 1 Scan Tool does not power up 25 4 2 2 Scan Tool does not Link With vehicle cccceeeeeeeeee 25 4 2 3 One or more modules drops the communication link 26 4 2 4 Keyboard does not function PIOPCHY 2s scsiteee eitesia navoni 26 4 3 Tool Self Test ccseceseeees 26 4 3 1 Display TeSt c eee 26 4 3 2 Keyboard TeSt cccccee 26 4 3 3 Memory TeSt 2 cccceeee 27 4 3 4 Printer Test 0 eccceee 27 4 4 Technical Support ssassn 27 Appendix A Global OBD II PID List amp Definitions 28 Appendix B Glossary amp Defini tions 31 All information illustrations and specifications contained in this manual are based on the latest information available from industry sources at the time of publication No warranty expressed or implied can be made for its accuracy or completen2. The tester communicates with the vehicle PCM via a data link connector DLC also referred to as a J1962 connector The term J1962 is taken from physical and electrical specification number assigned by SAE Society of Automotive Engineers A standardized DLC means all compliant vehicles will use the same DLC with the generic link information available on the same pins regardless of vehicle make or model In addition to the connector definitions is a guideline on where the connector is to be located in the vehicle This guideline states that the DLC should be located under the dashboard on the driver side of the vehicle However not all OBD II DLCs are located under the dash on the driver side If required refer to vehicle service documentation for the DLC location DLC Location 1 3 OBD II Scan Tool Hookup The OBD II cable attached to the scan tool fits the OBD II DLC Because the OBD II J1962 connector contains dedicated pins for power and ground only a single cable connection is required for both scan tool power and PCM communication Connect the scan tool to the DLC This connection will provide power for the scan tool The DLC maintains power even when the ignition is turned off Therefore connection to the battery is not required When the scan tool powers up a series of screens are displayed The screens start with a Welcome screen and end with a Key Button Help screen The screens between the W
3. Vehicles with OBD II use a 16 pin connector located in the passenger compartment Data Stream The actual data communications sent from the vehicle s PCM to the data connector DEPS Digital Engine Position Sensor Detonation See Knock DTC Diagnostic Trouble Code An alphanumeric identifier for a fault condition identified by the On Board Diagnostic System DI DIS Direct Ignition Distributorless Ignition System A system that produces the ignition spark without the use of a distributor Duty Cycle A term applied to signals that switch between on and off Duty cycle is the percentage of time the signal is on For example if the signal is on only one fourth of the time then the duty cycle is 25 The PCM uses duty cycle type signals to maintain precise control of an actuator ECT Engine Coolant Temperature sensor See CTS EFI Electronic Fuel Injection Any system where a computer controls fuel delivery to the engine by using fuel injectors EGR Exhaust Gas Recirculation The PCM uses the EGR system to recirculate exhaust gases back into the intake manifold to reduce emissions EGR Recirculation is used only during warm engine cruise conditions EGR flow at other times can cause stalling or no starts EPA Environmental Protection Agency 9620 Professional OBD II Scan Tool 33 Appendix B Glossary amp Definitions AIC Air Conditioning AF Air Fuel ratio The proportion of air a
4. 3 Pending Codes Pending Codes are also referred as continuous monitor and maturing codes An intermittent fault causes computer to store a code in memory If fault does not occur again within 40 warm up cycles the code clears from memory If the fault occurs a specific number of times the code matures into a DTC MIL illuminates or blinks This function can be per formed with the key on and engine running or not 12 9620 Professional OBD II Scan Tool Section 4 Help and Troubleshooting Tips 4 1 How to Use Help The tester contains Help for specific screens functions and error messages Help is available when Help symbol i appears in upper right hand corner of display To enter Help press HELP key Help screens are in CAPITAL LETTERS to remind viewing Help screens not screens associated with a function If Help message is longer than one screen then use UP and DOWN arrow keys to page through message The symbols and indicate the direction available To exit Help and return to the screen you where Help was entered press the BACK key 4 2 Scan Tool Problems If scan tool fails to power up link to vehicle pass Tool Self Tests or function properly then try following Troubleshooting Tips If these tips fail to resolve problem contact Actron Technical Support at 1 800 228 7667 8 00 6 00 EST Monday Friday or send an email to tech_support actron com Be prepared to provide scan tool s Softw
5. Data This function allows you to print the diagnostic information stored in the scan tool The scan tool s internal battery power can be used to print data Select Print Data and press the ENTER key The scan tool informs you of the printer settings Custom or Default then asks if you wish to change them If settings are not changed then skip the next section and continue with on the next page Changing the Printer Settings NOTE The default values are designated on the display with the word Default next to the option Refer to the printer manual for the settings After selecting YES and pressing ENTER the first item to change is the Baud Rate Use the UP DOWN arrow keys to select an option and press the ENTER key Press ENTER when the Select Data Bits screen displays There is nothing to select In the Select Stop Bits screen select 1 BIT or 2 BITS and press ENTER 20 9620 Professional OBD II Scan Tool The Test Measurement and Specification values are hexadecimal numbers i e 1A FE 11 The status is calculated by the scan tool using the measurement and specification data Status is either LOW HIGH or OK Press the BACK key to return to the Non Cont Tests Avail menu or press the ENTER key to return to the OBDII Function List 2 3 9 On Board Systems This test allows scan tool to control operation of vehicle components tests or systems Some manufacturers do not allow tools to control vehicle system
6. Trouble Code Ranges Within each general category the Diagnostic Trouble Codes are assigned to specific ranges that cover certain vehicle systems When displaying manufacturer specific or non global the assigned Diagnostic Trouble Codes displays the definition Lower Upper Assigned DTC System P0000 POOFF Fuel and air metering and auxiliary emission controls P0100 PO2FF Fuel and air metering P0300 PO3FF Ignition system or misfire P0400 PO4FF Auxiliary emission controls P0500 POSFF Vehicle speed idle control and auxiliary inputs P0600 PO6FF Computer and auxiliary outputs P0700 PO9FF Transmission POAOO POAFF Hybrid Propulsion P1000 P10FF Manufacturer controlled fuel air metering and auxiliary emission controls P1100 P12FF P1300 P13FF P1400 P14FF P1500 P15FF Manufacturer controlled fuel and air metering Manufacturer controlled ignition system or misfire Manufacturer controlled auxiliary emission controls Manufacturer controlled vehicle speed idle control and auxiliary inputs Manufacturer controlled computer and auxiliary outputs Manufacturer controlled transmission Fuel and air metering and auxiliary emission controls Ignition system or misfire Auxiliary Emissions Controls Auxiliary Inputs Computer and Auxiliary Outputs Transmission Fuel and air metering and auxiliary emission controls Ignition system or misfire Cylinder deactivation Network electrical Network communication Network software Network data
7. in engine control system Inspect for corrosion bent pushed out or over expanded pins Note Some connectors use special grease on contacts to prevent corrosion Do not wipe off Obtain grease from vehicle dealer It is a special type for this purpose 2 2 Connecting the Scan Tool Remove protective cap from data link connector if present Connect scan tool and follow scan tool prompts Use scan tool 9V battery to do self tests review codes code lookup or print data when connection to vehicle is not required When scan tool powers up a series of screens are displayed The screen starts with Welcome and ends with a Key Button Help 10 9620 Professional OBD II Scan Tool 4 3 3 Memory Test Perform the Memory Test if the scan tool has trouble displaying code definitions or performing functions that use internal memory Select Memory Test from the Tool Self Test menu and press the ENTER key The test begins immediately and displays a message Memory Test followed by periods as internal memory is tested When done a message displays indicating whether the test passed or failed Press ENTER to return to the Tool Self Test menu 4 3 4 Printer Test If you cannot print from the scan tool select Printer Test and press the ENTER key Refer to section Changing the Printer Settings on page 20 4 4 Technical Support 1 800 228 7667 8 00 6 00 EST Monday Friday or send email
8. s and communication type s display on screen 2 3 13 Review Data Review Data function allows review of information stored in scan tool s memory The scan tool does not require power from vehicle to perform this function Internal battery power can be used Select Review Data from OBDII Function List and press ENTER Only one function Playback needs detailed instructions Playback Playback function is used to play back a recording This function is very similar to View Data The only difference is View Data is real time viewing of PIDs while Playback is a viewing of previously recorded PIDs To play back recorded PIDs select Playback and press ENTER key The scan tool informs if a recording does not exist Otherwise scan tool plays back Entire Data List or Custom Data List depending on how data was recorded 9620 Professional OBD II Scan Tool 19
9. to fuel and emissions The O2 Monitor Test allows retrieval of completed O2 sensors monitor test results O2 sensors are located before upstream and after downstream catalyst s The sensors are named xy for their position relative to both cylinder banks and catalysts e The O2 sensor for cylinder bank 1 has the prefix 1y while the O2 sensor for cylinder bank 2 has the prefix 2y e The O2 sensor upstream of the catalyst closest to the engine has the suffix x1 while the O2 sensor downstream of the catalyst has suffix x2 If vehicle contains more catalysts the O2 sensor downstream of the second catalyst has the suffix x3 and the O2 sensor downstream of the next catalyst has the suffix x4 e For example O2S 21 is the upstream O2 sensor for cylinder bank 2 The following O2 sensor tests are available e Rich to Lean sensor threshold voltage e Lean to Rich sensor threshold voltage e Low sensor voltage for switch time e High sensor voltage for switch time 9620 Professional OBD II Scan Tool 15 e Rich to Lean sensor switch time e Lean to Rich sensor switch time e Minimum sensor voltage test cycle e Maximum sensor voltage test cycle e Time between sensor transitions Select O2 Monitor Test from OBDII Function List and press ENTER Select desired test from menu and press ENTER Grouping O2 sensor tests together makes data easier to compare The O2 sensors located upstream before catalyst may perform differently than the ones lo
10. upstream of the catalytic converter See O2S Bank 1 Bank 2 Sensor 2 A standard term used to identify the location of oxygen sensors Sensor 2 is located downstream of the catalytic converter See O2S Bank 1 Bank 2 Solenoid A device consisting of an electrical coil which when energized produces a magnetic field in a plunger which is pulled to a central position A solenoid may be used as an actuator ina valve or switch 9620 Professional OBD II Scan Tool 35 ESC Electronic Spark Control An ignition system function that warns the PCM when knock is detected The PCM will then retard spark timing to eliminate the knocking condition EST Electronic Spark Timing An ignition system that allows the PCM to control spark advance timing The PCM determines optimum spark timing from sensor information engine speed throttle position coolant temperature engine load vehicle speed Park Neutral switch position and knock sensor condition EVAP Evaporative Emissions System Freeze Frame A block of memory containing the vehicle operating conditions for a specific time Ground GND An electrical conductor used as a common return for an electric circuit s and with a relative zero potential voltage Hall Effect Sensor Any of a type of sensor utilizing a permanent magnet and a transistorized Hall Effect switch Hall Effect type sensors may be used to measure speed and position of the crankshaft or camshaft for
11. 0 etc and horizontally opposed engines Most commonly used to identify the location of oxygen sensors See O2S Sensor 1 Sensor 2 BARO Barometric Pressure Sensor See MAP Sensor Boost Control Solenoid A solenoid that is energized by the PCM in order to control supercharger boost pressure Brake Switch Signal An input signal to the PCM indicating that the brake pedal is being pressed This signal is typically used to disengage Cruise Control systems and Torque Converter Clutch TCC solenoids See also TCC CAM Camshaft Position Sensor Sends a frequency signal to the PCM in order to synchronize fuel injector and spark plug firing CARB California Air Resources Board Governing body for emissions control in California CKP REF Crankshaft Position Reference 32 9620 Professional OBD II Scan Tool Section 1 Vehicle Computer Systems 1 1 Introduction This section describes the engine computer control system types of sensors and how the computer controls engine fuel delivery idle speed and timing Additional information may be found in the technical support books at your local library or auto parts store The more known about the computer system the easier the problem can be diagnosed Computer controls were originally installed on vehicles to meet federal government regulations for lower emission levels and improved fuel economy This began in the early 1980 s when basic mechanical systems were no longer able to accura
12. 1 Internet and e mail http www actron com 620 aloha OBD Ii Scan Too Table of Contents Vehicle Service Information 3 Safety Precautions 006 4 Section 1 Vehicle Computer Systems 5 1 1 Introduction ceeeeeeeeeeeeeee 5 1 1 1 What The Computer Controls 5 1 1 2 What Has Not Changed 5 1 1 3 Computer Control System 5 1 2 Data Link Connector and Location 6 1 3 OBDII Scan Tool Hookup 1 3 1 Keyboard 1 3 2 DISPIAY nninsinninmsnnena 1 3 3 Lists Menus and Questions 7 1 4 Tool Setup 00 cceeeeeeeeeeeeeeneeeenees 8 1 4 1 Changing Measurement Units 8 1 4 2 Changing Display Contrast 8 1 4 3 Displaying Tool Information 9 1 4 4 Program Mode cccceeee 9 1 5 Personal Computer PC and Printer Interface a se 9 1 6 Replacing the Battery c ee 9 1 7 AC Adapter ccescceseeeeeeeneeenees 9 Section 2 Diagnosing with the Scan Tool 10 2 1 Preliminary Checks sses 10 2 2 Connecting the Scan Tool 10 2 3 OBDII Functions List 00 11 2 3 1 I M Readiness 0ccccceeeeee 11 2 3 2 Read Codes 12 2 3 3 Pending Codes 000 12 2 3 4 Erase Codes esise 13 23 5 Vew Data renoneer aaa 13 2 3 6 View Freeze Data 15 2 3 7 O2 Monitor Test 0 00000 15 2 3 8 Non Continuous Tests 16 2 3 9 On Board Systems
13. 5535 min or 1092 25 hours Time Since Cleared Diagnostic Code is time since diagnostic trouble codes were erased CMD EQ RATxy 0 1 99 Commanded Equivalence Ratio is the ratio of the air fuel mixture NOTE The CMD EQ RAT will read 1 0 while in a closed loop of fuel COOLANT 40 215 C or F Engine Coolant Temperature displays engine coolant temperaturefrom engine coolant temperature or cylinder head temperature sensor NOTE The coolant on many diesels may use Engine Oil Temperature instead EGR CMD 0 100 Commanded Exhaust Gas Recirculation is the percentage of exhaust gas being recir culated EGR ERR 100 99 22 Exhaust Gas Recirculation Error will show the error from changing from one condition to another ENG RUN 0 65 535sec Time since Engine Strart is the time the engine is running NOTE ENG RUN stops when engine stalls or engine is turned off for any reason ENGINE 0 16383 75 RPM Engine Revolutions Per Minute RPM is the speed engine is running EQ RATxy O2 Sensor Equivalence Ratio for Bank x Sensor y EVAP REQ 0 100 Commanded Evaporative Purge is the position evaporative purge control valve is open in percentage EVAP VP 8192PA 8191PA OR 32 8878 32 8838 H20 Evaporative Emissions System Vapor Pressure is pressure in the fuel tank FUEL LVL 0 100 Fuel Level Inputis the percentage of fuel with 0 equaling tank is full and 100 when tank is empty FUEL PRES 0 765kPa
14. NTER to return to the Select Print Data screen Press the BACK key to return to the OBDII Function List 9620 Professional OBD II Scan Tool 21 The screen is composed of three lines of data and one line for the frame number and timestamp in seconds Negative frames and timestamps indicate data recorded before the trigger event Positive frames and timestamps indicate data recorded after the trigger event e Use UP DOWN arrow keys to scroll through the recorded PID data of each frame The end of the list is reached when only the up icon is visible e Use the LEFT RIGHT arrow keys to scroll back and forth through the frames The LEFT key advances to the next frame wrapping around to earliest frame when the final frame is reached The RIGHT arrow key goes back to the previous frame again wrapping around to the final frame Different vehicles communicate at different speeds and support a different number of PIDs Therefore the maximum number of frames that can be recorded will vary Some vehicles wait a long period of time to store a trouble code after the driveability problem occurs If you selected Trigger On Codes when you made your recording you might not see any drastic change in data parameters before and after the trigger point In cases like this the user can manually trigger the recording when the symptom is observed When done press BACK to return to Review Data or to the OBDII Function List 2 3 14 Print
15. P1600 P16FF P1700 P19FF P2000 P22FF P2300 P23FF P2400 P24FF P2500 P25FF P2600 P26FF P2700 P27FF P2900 P32FF P3300 P33FF P3400 P34FF U0000 UOOFF U0100 U02FF U0300 U03FF U0400 U04FF 24 9620 Professional OBD II Scan Tool Select Pending Codes and press ENTER key The scan tool displays codes or a message stating SYSTEM PASS NO FAULT DETECTED Press DOWN arrow key to view DTCs or press BACK key to return to OBDII Function List The codes display in same format as Read Codes The DTC number and computer module that stored it display on first line Use UP Down arrow keys to view codes Press BACK to return to OBDII Function List 2 3 4 Erase Codes The Erase Codes function deletes DTCs from vehicle s computer memory Perform this function only after systems have been checked completely and DTCs have been documented This function should be performed with the key on and the engine off After servicing vehicle delete stored DTCs and verify no codes have been reset If DTCs return the problem has not been corrected or other faults are present In addition to clearing DTCs the Erase Codes function also erases Freeze Frame O2 Sensor Data System Monitors and On Board Monitor test results Select Erase Codes and press the ENTER key A message appears asking if you are sure Press LEFT ARROW to move brackets to desired response and press ENTER Selecting NO displays a COMMAND CANCELLED message prompting to press ENTER to return
16. SFI or SEFI Sequential Fuel Injection or Sequential Electronic Fuel Injection A fuel injection system that uses one or more injectors for each cylinder The injectors are mounted in the intake manifold and are fired individually ST Short Term fuel trim TBI Throttle Body Injection A fuel injection system having one or more injectors mounted in a centrally located throttle body as opposed to positioning the injectors close to an intake valve port TBI is also called Central Fuel Injection CFI in some vehicles TDC Top Dead Center When a piston is at its uppermost position in the cylinder Throttle Body A device which performs the same function as a carburetor in a fuel injection system On a throttle body injection TBI system the throttle body is both the air door and the location of the fuel injectors On port fuel injection systems PFI MPFI SFI etc the throttle body is simply an air door Fuel is not added until the injectors at each intake port are activated In each case the throttle body is attached to the accelerator pedal TPS Throttle Position Sensor Potentiometer type sensor connected to the throttle shaft Its voltage signal output increases as the throttle is opened The PCM uses this signal to control many systems such as idle speed spark advance fuel delivery etc TTS Transmission Temperature Sensor A resistance sensor mounted in the transmission housing in contact with the transmission fluid It s
17. and emissions controls Some on board computers may also control the transmission brakes and suspension systems as well 1 1 2 What Has Not Changed Acomputer controlled engine is very similar to the older non computerized engine It is still an internal combustion engine with pistons spark plugs valves and camshaft s The ignition charging starting and exhaust systems are very similar as well Test and repair of these systems are the same as before The technical manuals for these components provide instruction on how to perform the tests Additionally compression gauges vacuum pumps engine analyzers and timing lights will continue to be used 1 1 3 Computer Control System The vehicle on board computer or Powertrain Control Module PCM is the heart of the system It is sealed in a metal box and connected to the rest of the engine by a wiring harness The PCM is commonly located in the passenger compartment behind the dashboard kick panel position although some manufacturers locate the PCM in the engine compartment The PCM is programmed by the factory The program is a complex list of lookup tables and instructions telling the computer how to control the engine based on various driving conditions It does this using sensors to monitor what is happening and then provide feedback through a network of switches and actuators throughout the vehicle 9620 Professional OBD II Scan Tool 5 1 2 Data Link Connector and Location
18. are ID 4 2 1 Scan Tool does not power up e Check OBD II connector for power and ground If no power check fuse if appli cable e Verify vehicle s battery is at least 8 volts e Unplug and plug back in the Data Link Connector DLC to verify connector is properly seated to vehicle connector e If scan tool is being powered from an AC DC 110V to 12V adapter make sure AC outlet has power 4 2 2 Scan Tool does not Link with vehicle e Make sure cable is correctly connected to DLC Unplug the DLC adapter from vehicle and plug back to verify connection e Verify ignition key is ON not in ACCESSORIES position e Cycle ignition key OFF for 10 seconds then ON to reset PCM e Inspect DLC adapter and computer module connectors for cracked bent corroded or recessed pins and for any substance that could prevent a good electrical connection e In vehicle verify continuity exists between DLC and computer module In extreme cases broken wire s may exist e Check vehicle computer module for a blown fuse Refer to vehicle service manual for fuse location e Make sure computer module is grounded to vehicle If the computer module is grounded to vehicle then thoroughly clean connection and apply a conductive grease to mating surfaces e The vehicle computer module may be defective Refer to applicable vehicle service manual for test procedures and diagnostic flowcharts 9620 Professional OBD II Scan Tool 25 3 3 Diagnostic
19. back to OBDII Function List Selecting YES displays a screen prompting to turn ignition key to on and engine off and press ENTER key The scan tool sends erase command Press ENTER to continue and return to OBDII Function List 2 3 5 View Data The View Data function allows viewing of vehicle s Parameter Identification data PID in real time As the computer monitors the vehicle the information is simultaneously transmitted to scan tool Apart from Read Codes View Data is most useful diagnostic function for isolating cause of a vehicle operation problem Viewing data is also used for observing sensor data and status of switches solenoids and relays Select View Data from OBDII Function List and press ENTER The scan tool displays a menu with display options Use the UP DOWN arrow keys to select an option and press ENTER 9620 Professional OBD II Scan Tool 13 Entire Data List Select Entire Data List to display all PIDs supported by vehicle under test Custom Data List To display only certain PIDs select Custom Data List The ability to display certain PIDs helps in diagnosing a specific driveability symptom or system If choosing to view a Custom Data List the scan tool asks if help is needed to view the instructions Select desired response and press ENTER e Use UP DOWN arrow keys to move cursor up and down through list e Use RIGHT arrow key to select or deselect PIDs Selected PIDs are marked
20. cated downstream after the catalyst Oxygen sensor tests not supported by the vehicle display three dashes as the value Press the BACK key to return to the O2 Sensor Tests menu or press ENTER to return to the OBDII Function List 2 3 8 Non Continuous Tests The Non Contin Non Continuous Tests obtains test results for emission related powertrain components and systems that are not continuously monitored The Non Contin Test function is useful after servicing or after erasing the vehicle s memory Test results do not necessarily indicate a faulty component or system The scan tool asks the vehicle for any available noncontinuous test IDs and then displays them in a list The vehicle manufacturer is responsible for assigning the test and component IDs Select Non Contin Tests from the OBDII Function List and press ENTER A list of tests applicable to the vehicle are displayed Select a test and press ENTER The scan tool displays the test ID system or component ID test measurement MEAS specification value SPEC and status STS Refer to the appropriate vehicle service manual for test IDs and definitions Test results requested by the scan tool may also include test limits Only one test limit is included in the response message and displayed on the screen The test limit could be either a minimum or a maximum test limit 16 9620 Professional OBD II Scan Tool Next select the parity and press ENTER Finally se
21. d test procedures at all times when working on vehicles Always wear approved eye protection Always operate the vehicle in a well ventilated area Do not inhale exhaust gases they are very poisonous Always keep yourself tools and test equipment away from all moving or hot engine parts Always make sure the vehicle is in Park Automatic transmission or neutral manual transmission and that the parking brake is firmly set Block the drive wheels Never lay tools on vehicle battery You may short the terminals together causing harm to yourself the tools or the battery Never use scan tool if its internal circuitry has been exposed to any liquids Never smoke or have open flames near vehicle Vapors from gasoline and or charging battery are highly flammable and explosive Never leave vehicle unattended while running tests Always keep a fire extinguisher suitable for gasoline electrical chemical fires handy Always use extreme caution when working around the ignition coil distributor cap ignition wires and spark plugs These components contain high voltage when the engine is running When performing a road test never operate the scan tool alone while driving the vehicle Always have one person drive the vehicle while an assistant operates the tester Always turn ignition key OFF when connecting or disconnecting electrical components unless otherwise instructed Always follow vehicle manufacturer s warnings cautions and ser
22. d decrease the amount of exhaust gas O2Sxy 128 127 996mA Oxygen Sensor Output Current is used for linear or wide ratio oxygen sensors to increase and decrease the amount of exhaust gas OBD2 STAT CA OBDI US NONE EU and or JA On Board Diagnostic shows what vehicle was made for Data Parameters CA Indicates test vehicle meets California on board diagnostic ARB requirements OBD Indicates test vehicle does not meet OBDII requirements US Indicates test vehicle meets Federal EPA requirements NONE Indicates test vehicle is not on board diagnostic compliant EU Indicates test vehicle meets European on board diagnostic requirement JA Indicates test vehicle meets Japanese on board diagnostic requirment Outside Air Temperature gives temperature outside NOTE The Data Parameters can be used with each other for example CA US OUTSID AIR 40 215 C or 40 419 F Outside Air Temperature gives temperature outside PTO STATUS OFF or ON Power Take Off Status allows module to keep track of Power at Take Off REL FRP 0 5177 27kPa or 750 9PSI Relative Fuel Rail Pressure Vacuum is the fuel rail pressure at engine 30 9620 Professional OBD II Scan Tool 1 3 1 Keyboard The scan tool software was designed for easy to operate approach in navigating through operational menus Simply follow instructions that match keyboard symbols Keyboard Functions The scan tool uses 8 keys to navigate through the software
23. d ignition key is ON Cycle ignition key to OFF for 10 seconds then ON This may be required to reset the PCM If required select Yes to test again If problem still exists refer to Section 4 Help and Troubleshooting Tips 2 3 1 I M Readiness Purpose of the I M Readiness test is to display current information on emissions related systems These systems are required by OBD II regulation to be monitored for emissions testing OBD II I M Readiness Monitors are strategies designed to test operations of emission related systems or components The computer module uses these monitors to check for correct operations of system and components as well as out of range values The computer module may perform a special test on a system or component to complete the monitor It may be required to operate vehicle under certain conditions in order to perform an accurate test If computer module loses power or codes are erased monitors may be cleared The scan tool displays the state of vehicle OBD II Monitors To enter I M Readiness viewing mode select I M Readiness from OBD II Function List and press ENTER A list of On Board system readiness tests and their status will be displayed Use vehicle service manuals for more information on emission related monitors and their status Below are examples of completed versus not completed I M Readiness screens Use the UP DOWN arrow keys to view monitor list The monitor list consists of the OBD 9620 P
24. d with a standard 9 pin serial interface Use connection to attach tool to a PC or compatible printer e Personal Computer Use serial adapter to connect to a PC when updating to current available software Software updates may be purchased from Actron by calling the toll free number provided or from the Actron website www actron com Refer to Section 2 4 13 Print Data for default serial port settings and to make changes to settings Printer Connection Connect a compatible printer cable to the scan tool and Printer using specifications below Ifthe printer connector is a 25 pin connector or if the gender is not compatible an adapter will be required Adapters are available at most local PC stores or electronics outlets ANULL modem adapter is required to be connected in series with scan tool and printer cable 1 6 Replacing the Battery To replace the 9V battery do the following e Remove screw from back of scan tool case e Slide battery cover back to disengage hooks e Replace 9V battery and place in compartment e Slide battery cover up making sure hooks engage scan tool case e Install screw 1 7 AC Adapter The AC power adapter powers the tool when you review codes and print off vehicle and when you update the software vial a personal computer The Scan tool is equipped to accept any 110 Vac 12 Vdc AC adapter with the following specifications e 300 mA minimum unregulated wall power adapter e Dimension
25. elcome screen and the Key Button Help screen are for tool self tests and software ID Refer to this software ID when contacting the Actron technical support line with a problem To review the key button definitions push the HELP key otherwise press ENTER to continue The scan tool requires a minimum of 8 volts to power up If a problem occurs with power up review Section 4 Help and Troubleshooting Tips 6 9620 Professional OBD II Scan Tool REL TPS 0 100 Relative Throttle Position is relative throttle position at normal position SECOND AIR AIR_STAT UPS DNS or OFF Commanded Secondary Air Status is on newer vehicles and actuators to control pollu tion control UPS UP STREAM module is demanding that secondary air be added at exhaust manifolds DNS DOWN STREAM module is demanding secondary air be added at catalytic converter OFF Module is demanding no secondary air to be added ST FTRMxy 100 99 22 Short term Fuel Trim Bank calculated value represents the short term relation of fuel metering on a fuel injected engine NOTE Short term Fuel Trim calculated value that has a positive percentage is a rich fuel trim and if a negative percentage is present the fuel trim is lean ST FLTRMx 100 99 2 Short term Fuel Trim value represents the short term relation of fuel metering on a fuel injected engine NOTE Short term Fuel Trim value with a positive percentage is a rich fuel trim and if a negative perc
26. emperature to determine correct air fuel ratios and spark timing operations IGN ADV 64 63 5 Ignition Timing Advance for cylinder is a signal of how much spark advance to add to base engine timing expressed in crankshaft degrees LT FL FTRM 100 99 22 Long Term Fuel Trim Bank is the fuel mixture adjustment in a range with midpoint being 0 NOTE Positive reading indicates module commanded a long term rich mixture correction in response to a lean operating condition A negative reading indicates module has commanded a long term lean mixture in response to a rich operating condition MAF 0 655 35 g s or 0 86 51b min Mass Air Flow is the air flow rate the sensor sends to the computer module indicating mass of air entering engine MAP 0 255kPa or Hg Intake Manifold Absolute Pressure displays manifold pressure MIL DIST 0 65535km or 0 40 722miles Distance Traveled while Malfunction Indicator Lamp is Active is a counter that displays distance traveled since Check Engine or Service Engine Soon light came on MIL STAT ON or OFF Monitor Status Data Trouble Code state that module is commanding the Malfunction Indicator Lamp MIL to be ON if problem exists MIL TIME 0 65535min or 0 1092 25Hrs The distance traveled since the MIL Check Engine or Service Engine Soon light came on O2Sxy 0 1 275V Oxygen Sensor Output Voltage is the voltage generated from the oxygen sensor to increase an
27. ends a voltage signal to the PCM indicating the temperature of the transmission VECI Vehicle Emission Control Information A decal located in the engine compartment containing information about the emission control systems found on the vehicle The VECI is the authoritative source for determining whether a vehicle is OBD II compliant VIN Vehicle Identification Number This is the factory assigned vehicle serial number This number is stamped on a number of locations throughout the vehicle but the most prominent location is on top of the dashboard on the driver s side visible from outside the car The VIN includes information about the car including where it was built body and engine codes options and a sequential build number VSS Vehicle Speed Sensor Sends a frequency signal to the PCM The frequency increases as the vehicle moves faster to give the PCM vehicle speed information used to determine shift points engine load and cruise control functions WOT Wide Open Throttle The vehicle operating condition brought about when the throttle is completely or nearly open The PCM will typically deliver extra fuel to the engine and de energize the A C compressor at this time for acceleration purposes The PCM uses a switch or the Throttle Position Sensor to identify the WOT condition ACTRON MANUFACTURING CO 15825 Industrial Parkway 2002 Actron Manufacturing Co Cleveland Ohio 44135 9946 Printed in USA USA 0002 002 236
28. entage is present the fuel trim is lean THR POS 0 100 Absolute Throttle Position is the position the throttle is located The more the throttle is closed the less percent shown THROT CMD 0 100 Commanded Throttle Actuator Control is the position of the throttle If throttle is closed the percent will be 0 and if wide open 100 TRIPS SNC CLR 0 255 Number of warm ups since diagnostic trouble codes cleared Warm up is when temperature of coolant rises to at least 22 C 40 F from engine starting and reaching a minimum tempera ture of 70 C 160 F If a diesel engine the engine minimum temperature is 60 C 140 F NOTE If there is more than 255 that the engine warms up the TRIPS SNC CLR will remain at 255 TROUB CODE 00 00 FF FF Trouble Code Parameter will give the diagnostic trouble code that caused a freeze frame capture This information is helpful in diagnosing the cause of a driveability If no freeze frame data has been captured this PID will be zero VEH SPEED 0 255K h or 0 158mph Vehicle Speed shows the speed the vehicle is going VPWR 0 65 535V Control Module Voltage is the power input to the control module NOTE 42 volt vehicles may utilise multiple voltages for different systems on the vehicle VPWR may be significantly different than battery voltage 9620 Professional OBD II Scan Tool 31 IAT TEMP 40 215 C or 40 419 F Intake Air Temperature is a measure of intake air t
29. ess nor is any responsibility assumed by Actron or anyone connected with it for loss or damages suffered through reliance on any information contained in this manual or misuse of accompanying product Actron reserves the right to make changes at any time to this manual or accompanying product without obligation to notify any person or organization of such changes 9620 Professional OBD II Scan Tool MIT Manual transmission or manual transaxle MAF Mass Air Flow Sensor Measures the amount and density of air entering the engine and sends a frequency or voltage signal to the PCM The PCM uses this signal in its fuel delivery calculations MAP Manifold Absolute Pressure Sensor Measures intake manifold vacuum or pressure and sends a frequency or voltage signal depending on sensor type to the PCM This gives the PCM information on engine load for control of fuel delivery spark advance and EGR flow MAT Manifold Air Temperature sensor A resistance sensor in the intake manifold that sends a voltage signal to the PCM indicating the temperature of the incoming air The PCM uses this signal for fuel delivery calculations MIL Malfunction Indicator Lamp The MIL is most commonly known as the Check Engine or Service Engine Soon light A required on board indicator to alert the driver of an emission related malfunction Monitor A test performed by the on board computer to verify proper operation of emission related sys
30. ganized in alphabetical order the same way the scan tool does For each PID the type of reading are provided Remember to always refer to a vehicle service manual for detailed diagnostic procedures for troubleshooting incorrect PID readings Types of Data Parameters INPUT These data parameters are obtained from sensor outputs Sensor outputs are inputs to vehicle s computer module s For example ifan Oxygen Sen sor was generating a 400mV signal then the scan tool displays O2S v 0 40 OUTPUT These data parameters are outputs or commands that come directly from computer module s For example the ignition spark advance is controlled by PCM on most vehicles monitoring this PID shows spark output from PCM The scan tool would display IGN ADV 10 CALCULATED These data parameters are calculated after analyzing various inputs to the vehicle s computer module s For example the engine load The PCM calculates this from sensor inputs and displays it in a percentage PCM VALUE Is information that is stored in the computer module s memory and deter mined to be useful to service technician An example of this is TROUBLE CODE value the DTC that caused a freeze frame capture NOTE Several different causes can have the same parameter indication For information on diagnostics consult vehicle service manuals DATA PARAMETER LIST ABS FRP 0 655350kPA or 0 95050 5PSI Absolute Fuel Rail Pressure is the fuel pressure at t
31. he engine when reading in refer ence to atmospheric pressure ABS LOAD 0 100 Absolute Load Value is the normal value of air mass per intake stroke displayed as a percent ABSLT TPS 0 100 Absolute Throttle Position represents normal distance throttle is opened ACC POS D E or F 0 100 Accelerator Pedal Position represents normal distance gas pedal is pressed BARO PRESS 0 255kPA or 0 36 9PSI Barometric Pressure is normally received from a dedicated barometer manifold abso lute pressure sensor and other inputs during certain modes of driving NOTE The Baro Press may not be the same as some weather services Barometric Pressure due to being read at sea level CALC LOAD 0 100 Calulated LOAD Value indicates load on engine CAT TEMPxy 40 C 6513 5 C or 40 9999 9F Catalyst Temperature Bank shall display catalyst substrate temperature for bank cata lyst if used by control module strategy for on board diagnostics monitoring bank sensor catalyst or temperature sensor 28 9620 Professional OBD II Scan Tool 1 4 3 Displaying Tool Information From Tool Setup menu select Tool Information and press ENTER Use UP DOWN arrow keys to view information Record information in case the need to contact customer service arises 1 4 4 Program Mode Used to update scan tool s software Instructions will be provided with updates 1 5 Personal Computer PC and Printer Interface Scan tool is equippe
32. ill be periodically updated to reflect these changes For more information regarding DTC updates please call our Technical Support line at 1 800 228 7667 8 00 6 00 EST Monday Friday or send an email to tech_support actron com 22 9620 Professional OBD II Scan Tool 2 3 6 View Freeze Data When an emission related fault occurs certain vehicle conditions are recorded by the on board computer This information is referred to as a Freeze Frame data The information is a snapshot of operating conditions at time of a fault This data can be overwritten by faults with a higher priority NOTE If codes were erased then freeze frame data may not be stored in vehicle memory Select View Freeze Data from the OBDII Function List and press ENTER The scan tool links to the vehicle and displays Freeze Frame data Use UP DOWN arrow keys to scroll through data NOTE If more than one computer module respons with freeze fram data then the frame num ber and module display on the first line Press the LEFT Right key to change mod ules When done press BACK key to return to OBDII Function List 2 3 7 O2 Monitor Test NOTE The O2 Monitor Test is NOT AN ON DEMAND TEST O2 sensors are NOT tested when selected via the menu The O2 sensors are tested when engine operating conditions are within specified limits OBD II regulations require that applicable vehicles monitor and test the oxygen 02 sensors to determine problems related
33. lect the printer speed FAST or SLOW and press ENTER Now that the printer settings are changed it is time to verify the settings Press the ENTER key to print the ASCII character set Follow the instructions displayed on the screens If the printout is OK press ENTER Refer to the settings in the printer manual if the printout is not OK Printing Data except Playback Next select the data to be printed and press ENTER The scan tool displays the menu of those functions that store data and can be printed Make sure the printer is turned on on line and connected When the selected data does not exist in the scan tool s memory a message informs you to run the function If the selected data is stored in the scan tool the data automatically transmits to the printer Press ENTER to return to the Select Print Data screen Either select another item to print or press BACK to return to the OBDII Function List Printing Playback Data When printing playback data the Start Frame and End Frame need to be defined After selecting Playback and pressing ENTER the Start Frame screen shows the earliest possi ble frame Use the 22 or 2 to change the frame number and then press ENTER Next the End Frame screen displays the latest possible frame Use the Scroll Wheel to change the frame number and then press ENTER The scan tool starts transmitting to the printer frame by frame After all the frames have been sent press E
34. menu and press ENTER key Test screen with instructions is displayed Each time a key is pressed key s name should appear on display For example if UP arrow is pressed screen will display Key UP ARROW If name is not displayed key is not working NOTE When BACK key is pressed OBD II System Tester returns to Self Test Menu If not then BACK key is not working 26 9620 Professional OBD II Scan Tool After pressing ENTER from HELP Screen the Main Menu displays Select Vehicle Diagnosis and press ENTER The scan tool asks to erase data from previous test Use LEFT RIGHT arrow keys to select a response and press ENTER A message displays Turn Key Off For 10 Seconds Then Turn Key On and Then Press ENTER 2 3 OBD Il Functions List Use UP DOWN Narrow keys to move cursor Once selection is made press ENTER Press and release BACK key to return to OBD II Function List Pressing BACK key from the OBD II Function List returns scan tool to Main Menu The first time scan tool communicates with vehicle the communication type is automatically detected and is used until scan tool is turned OFF or another vehicle is diagnosed Not every vehicle will have every function listed If function or part of a function selected is not supported by a vehicle a message screen informing of this will be shown NOTE If an Operating Error message is displayed make sure the OBD II J1962 cable is securely attached an
35. nd fuel delivered to the cylinder for combustion For example an A F ratio of 14 1 denotes 14 times as much air as fuel in the mixture A typical ideal A F ratio is 14 7 1 AC Clutch Relay The PCM uses this relay to energize the A C clutch turning the A C system on or off AC Pressure Sensor Measures air conditioning refrigerant pressure and sends a voltage signal to the PCM AC Pressure Switch A mechanical switch connected to the A C refrigerant line The switch is activated sending a signal to the PCM when the A C refrigerant pressure becomes too low Actuator Actuators such as relays solenoids and motors allow the PCM to control the operation of vehicle systems Air Injection Reaction AIR System An emission control system operated by the PCM During cold starts an air pump injects outside air into the exhaust manifold to help burn hot exhaust gases This reduces pollution and speeds warm up of oxygen sensors and catalytic converters After the engine is warm the air will either be dumped back to the atmosphere or into the air cleaner assembly or sent to the catalytic converter Bank 1 The standard way of referring to the bank of cylinders containing cylinder 1 In line engines have only one bank of cylinders Most commonly used to identify the location of oxygen sensors See O2S Sensor 1 Sensor 2 Bank 2 The standard way of referring to the bank of cylinders opposite cylinder 1 Found on V 6 V 8 V 1
36. not verify if data returned is correct for scanned vehicle This information is provided by vehicle manufacturer The Vehicle Info test must be completed with the key in the ON position and the Engine OFF Calibration Verification Numbers CVNs are calculated values required by OBD II regulations with the vehicle engine off CVNs are reported to determine if emission related calibrations have been altered Multiple CVNs may be reported for a control module The calculation may take several minutes first time the CVNs are requested Select Vehicle Info from OBD II Function List and press ENTER If the message INVALID displays on screen then data returned is incorrect or not formatted in accordance with OBD II specification 18 9620 Professional OBD II Scan Tool Scan tool displays VIN Calibration ID and CVNs if supported by vehicle In example screens MOD 10 returned data Use UP DOWN arrow keys to scroll CVNs are shown as a hexadecimal number Press BACK or ENTER to return to OBDII Function List 2 3 12 Modules Present OBD II information may be provided by a single module or many separate modules The scan tool identifies module IDs and communication type for OBD II modules in vehicle Select Modules Present from OBDII Function List and press ENTER When selecting this function scan tool checks for an established communication link If no link is made a message displays stating so If link was successful module
37. or 0 110psi Fuel Rail Pressure is the fuel pressure at the engine in respect to atmospheric pres sure FUEL SYS OPEN or CLSD Fuel System Status show loop status of fuel system banks OPEN Computer module is operating in Open Loop control strategy The vehicle has not yet satisfied conditions for the computer module to go to closed loop CLSD Computer module currently functioning in Closed loop control strategy using O2 sensor s as feedback for fuel control OPEN1 Open Loop control strategy is being used by the PCM due to driving conditions power enrichment and deceleration enrichment OPEN2 Computer module is operating in Open Loop control strategy due to detected system fault Certain actuator or sensor faults are usually the cause CLSD1 Closed Loop control is current storage being used by PCM but a fault with at least one O2 sensor has been detected The control system may be using single O2 for fuel control calculations 9620 Professional OBD II Scan Tool 29 Appendix A Global OBD II PID List amp Definitions All parameter identification data PID listed was verified on actual vehicles to guarantee accuracy Definitions used to describe all PIDs were obtained from reliable sources and are accurate at time of printing It is possible that some newer vehicles may contain different data different from that listed In these cases refer to an applicable vehicle service manual Data Parameter List Format The PID list is or
38. p Arrow indicates there is additional information on previous screen Diamond to the left of item indicates it is selected The screen at the right shows how some of these symbols will look on your display 1 3 3 Lists Menus and Questions The scan tool is designed to be as intuitive as possible Its functions and controls are easy to understand and use All menu and screen lists operate the same way Use the UP DOWN arrow keys to move the cursor to a selection The ENTER key selects that function or item The screen examples below show a few selections available on the OBDII Function List For example to read vehicles DTCs move cursor to Read Codes and press ENTER To make a different choice use the DOWN arrow key to move the cursor down to View Data and press ENTER This will select the View Data function Sometimes a list will be longer than three or four items and will not fit on a single screen In this case the DOWN arrow symbol is visible in the last column of the display indicating that there are more choices on the next screen as shown below on the left Use the DOWN arrow key to move the cursor down the list 9620 Professional OBD II Scan Tool 7 At the bottom of the list there is now only an UP arrow symbol visible in the last column indicating the last function in the list has been reached To return to previous screens press the UP arrow key The UP DOWN arrow keys work the same way when scrolling through
39. rofessional OBD II Scan Tool 11 Il monitor name followed by monitor state A monitor that is not supported by test vehicle will be followed by n a A monitor that has been completed is followed by ok If not completed inc will be displayed Use the UP DOWN arrow keys to scroll through the list NOTE In additon to displaying the state of the monitor since the last time DTC s were cleared some vehicles will display the state of the monitors for this drive cycle Use the LEFT RIGHT arrows to switch between these screens Press the ENTER key to return to the OBD II Function List 2 3 2 Read Codes The Read Codes function retrieves Diagnostic Trouble Codes DTCs from vehicle s computer modules This function can be performed with the key on and the engine off or the key on and engine running These codes cause the computer to illuminate the Malfunction Indicator Lamp MIL when an emission related or driveability fault occurs The MIL is also known as the service engine soon or check engine lamp Select Read Codes and press ENTER The scan tool retrieves the DTCs stored in the vehicle s computer module s The scan tool displays the DTCs or a message stating SYSTEM PASS NO CODES FOUND Press the DOWN arrow key to view the DTCs or press the BACK key to return to the OBDII 3 Function List Write down the DTCs for reference then press BACK to return to the OBDII Function List 2 3
40. s 5 5 mm Outside Diameter 2 5 mm Inside Diameter NEG 0 POS 9620 Professional OBD II Scan Tool 9 Section 2 Diagnosing with the Scan Tool 2 1 Preliminary Checks Before using scan tool perform a complete visual inspection Many driveability problems are found by visual inspection saving time Check the following items before proceeding with scan tool testing i N 1 Has vehicle been serviced recently Sometimes things get connected in the wrong place or not at all 2 Don t take shortcuts Inspect hoses and wiring which may be difficult to see because of location beneath air cleaner housings alternators and similar components Inspect air cleaner and ductwork for defects Check sensors and actuators for damage 5 Inspect all vacuum hoses for e Correct routing Refer to vehicle service manual or Vehicle Emission Control Information VECI decal located in engine compartment P aes e Pinches and kinks e Splits cuts or breaks 6 Inspect wiring for e Contact with sharp edges this happens frequently e Contact with hot surfaces such as exhaust manifolds e Pinched burned or chafed insulation Cm kw BRAKE BOOSTER TO TRANS MODE FRONT e Proper routing and connections 7 Check electrical connectors for e Corrosion on pins e Bent or damaged pins e Contacts not properly seated in housing e Bad wire crimps to terminals Connector problems are common
41. s A vehicle not supporting an on board system is identified by a message displayed when selected NOTE Refer to vehicle service manual for on board systems instructions Select On Board Systems from OBDII Function List and press ENTER A list of on board systems and components available for testing display on screen Select a test and press ENTER to activate test The manufacturer is responsible for determining criteria to automatically stop test Refer to appropriate vehicle service manual 2 3 10 Record Data Record Data function records PIDs while vehicle is parked or being driven This function is mainly used for diagnosing intermittent driveability problems that cannot be isolated by any other method The scan tool can maintain only one recording at a time Be sure to thoroughly review old recording before erasing Select Record Data from OBDII Function List and press ENTER Follow all instructions on display If a recording currently exists in memory a mes sage prompting to erase data is displayed Note Make sure to review old record old data before erasing Scan tool retrieves a list of supported PIDs After list is generated scan tool prompts to select type of data to view Refer to View Data described earlier in this section to setup Entire or Custom Data Lists On next screen select a method to trigger a recording Manual Trigger allows technician to use ENTER key Trigger On Codes automatically triggers
42. spark timing and fuel injector control HO2S Heated Oxygen Sensor See 028S IAC Idle Air Control A device mounted on the throttle body which adjusts the amount of air bypassing a closed throttle so that the PCM can control idle speed ICM Ignition Control Module I M Inspection and Maintenance An emission control program ISC Idle Speed Control A small electric motor mounted on the throttle body and controlled by the PCM The PCM can control idle speed by commanding the ISC to adjust its position ISO International Organization of Standardization Knock Uncontrolled ignition of the air fuel mixture in the cylinder Also referred to as detonation or ping Knock indicates extreme cylinder pressures or hotspots which are causing the air fuel mixture to detonate prematurely Knock Sensor KS Used to detect engine detonation or knock The sensor contains a piezoelectric element and is threaded into the engine block Special construction makes the element sensitive only to engine vibrations associated with detonation KOEO Key On Engine Off KOER Key On Engine Running LCD Liquid Crystal Display LT Long Term fuel trim 34 9620 Professional OBD II Scan Tool Vehicle Service Information The following is a list of publishers who have manuals containing electronic engine control diagnostic information Some manuals may be available at auto part stores or local public libraries For o
43. tely control key engine parameters A computer could be programmed to control the engine under various operating conditions making the engine more reliable While these early systems were very limited in scope of their diagnostics providing only 10 14 trouble codes they did help guide the vehicle repair process In 1994 manufacturers began equipping vehicles with a new class of computer technology which puts more processing power under dash than ever before It is called On Board Diagnostics version II or OBD II It is required on all vehicles sold in the US beginning January 1 1996 though most domestic manufacturers introduced it earlier than required and offers increased system monitoring and diagnostic information This new system stores a library of more than 650 general trouble codes and another approximately 400 manufacturer specific codes all of which can be accessed with the scan tool These codes cover Body Systems B Codes Chassis Systems C Codes Communications Codes U Codes and Powertrain Systems P Codes Now basic terms are standardized and all generic codes will share a common format and terminology that manufacturers and the Society of Automotive Engineers SAE designed The OBD II Professional Scan Tool performs OBD II functions on ALL makes of OBD II compliant vehicles from 1994 and up 1 1 1 What The Computer Controls The main control areas of the vehicle computer are fuel delivery idle speed spark advance
44. tems or components MPFI or MFI Multi Port Fuel Injection MPF is a fuel injection system using one or more injector s for each cylinder The injectors are mounted in the intake manifold and fired in groups rather than individually NOx Oxides of Nitrogen A pollutant The EGR system injects exhaust gases into the intake manifold to reduce these gases at the tailpipe 02S Oxygen Sensor Generates a voltage of 0 6 to 1 1 volts when the exhaust gas is rich low oxygen content The voltage changes to 0 4 volts or less when the exhaust gas is lean high oxygen content This sensor only operates after it reaches a temperature of approximately 349 C 660 F O2 sensors are usually found both upstream and downstream of the catalytic converter The PCM uses these sensors to fine tune the air fuel ratio and to monitor the efficiency of the catalytic converter See Bank 1 Bank 2 Sensor 1 Sensor 2 ODM Output Device Monitor OBD II On Board Diagnostics Second Generation OBD II is a U S Government mandated standard requiring all cars and light trucks to have a common data connector connector location communication protocol DTCs and code definitions Sensor Any device that reports information to the PCM The job of the sensor is to convert a parameter such as engine temperature into an electrical signal that the PCM can understand Sensor 1 A standard term used to identify the location of oxygen sensors Sensor 1 is located
45. text such as the Help screen The Scan Tool may ask a question which requires a response from user These will always be YES or NO questions and are answered with cursor and Arrow keys In these screens brackets will automatically appear next to default response To accept default choice simply press ENTER Use LEFT RIGHT arrow key to move brackets to other response and press ENTER 1 4 Tool Setup Only functions of the Main Menu that pertain to getting started with scan tool are discussed in the following paragraphs For all other menu selections available refer to Section 4 Help and Troubleshooting Tips Tool Setup is used to change the scan tool default unit settings To change the scan tool settings select Tool Setup from the MAIN MENU and press the ENTER key NOTE Settings chosen will remain until 9 volt battery is dead 1 4 1 Changing Measurement Units After selecting Tool Setup option tool setup menu appears To choose English or Metric measurement units use UP DOWN arrows to make selection and press ENTER The display will look like the following screen 1 4 2 Changing Display Contrast From the Tool Setup menu select Display Contrast and press ENTER Use the UP DOWN arrow keys as indicated on the screen 8 9620 Professional OBD II Scan Tool CLR DST 0km 65 535km or 0 40 722miles Distance Since Cleared Diagnostic Codes is distance since diagnostic trouble codes were erased CLR TIM 0 6
46. thers write for availability and pricing specifying the make model and year of vehicle Service Manuals Chilton Book Company Chilton Way Radnor PA 19089 Haynes Publications 861 Lawrence Drive Newbury Park CA 91320 Cordura Publications Mitchell Manuals Inc Post Office Box 26260 San Diego CA 92126 Motor s Auto Repair Manual Hearst Company 250 W 55th Street New York NY 10019 Suitable manuals have titles such as Electronic Engine Controls Emissions Control Manual or similar titles 9620 Professional OBD II Scan Tool Manufacturer Service Manuals General Motors Buick Cadillac Chevrolet GEO GMC Oldsmobile amp Pontiac Helm Incorporated Post Office Box 07130 Detroit MI 48207 Saturn Adistra Corporation c o Saturn Publications 101 Union St Post Office Box 1000 Plymouth MI 48170 Ford Motor Company Ford Lincoln amp Mercury Ford Publication Department Helm Incorporated Post Office Box 07150 Detroit MI 48207 Chrysler Corporation Chrysler Plymouth amp Dodge Chrysler Motors Service Training 26001 Lawrence Avenue Center Line MI 48015 Fuel Injection and Feedback Carburetors Fuel Injection and Electronic Engine Controls Safety Precautions General Safety Guidelines to Follow When Working on Vehicles To prevent accidents that could result in serious injury and or damage to vehicle or test equipment carefully follow these safety rules an
47. tifies a problem a DTC for that fault is stored in memory These codes are intended to help you determine the root cause of a problem Bx Body Cx Chassis Px Powertrain Ux Network Comm x 0 1 20r3 Specific Fault Designation Vehicle Specific System Example P0101 Mass or Volume Air Flow Circuit Range Performance Problem Powertrain Codes POxxx Generic SAE P1xxx Manufacturer Specific B1xxx Manufacturer Specific P2xxx Generic SAE B2xxx Manufacturer Specific P30xx P33xx Manufacturer Specific B3xxx Generic SAE P34xx P39xx Generic SAE Body Codes BOxxx Generic SAE Network Communication Codes UOxxx Generic SAE U1xxx Manufacturer Specific U2xxx Manufacturer Specific U3xxx Generic SAE Chassis Codes COxxx Generic SAE C1xxx Manufacturer Specific C2xxx Manufacturer Specific C3xxx Generic SAE J2012 and ISO 15031 6 are standards for all DTCs established by SAE International Organization for Standardization ISO and other governing bodies Codes and definitions assigned by this specification are known as Generic OBD II codes OBD II requires compliance with standards and has made it standard for all cars light trucks APVs MPVs and SUVs sold in U S Codes not reserved by SAE are reserved for manufacturer and referred to as Manufacturer Specific Periodically new DTCs are defined and approved by SAE ISO and other governing bodies The scan tool software w
48. to tech_support actron com Be prepared to provide the scan tool s Software ID 9620 Professional OBD II Scan Tool 27 4 2 3 One or more modules drops the communication link When the OBD II System Tester initially links to the vehicle it builds a list of all OBD II compliant computer modules If in the course of scanning the vehicle a module drops the link a message will display Answering YES will continue operation without the lost module Answering NO will try to restore the communication links to get all modules back to an active status 4 2 4 Keyboard does not function properly e Perform Keyboard Test by entering Self Test and select Keyboard Test function e If the keyboard test shows nothing and you still experience the problem then contact Actron Technical Support 4 3 Tool Self Tests Tool Self Tests are used to test the operation of the display keyboard internal memory and printer connection if applicable The Tool Self Test menu is accessed from the MAIN MENU Use the UP DOWN arrow keys to select the test and then press the ENTER key 4 3 1 Display Test Select Display Test and press the ENTER key Press ENTER to begin test Display Test will fill every pixel of display Look for pixels that are not black Press BACK key to exit to Tool Self Test menu Press BACK key again to display the MAIN MENU 4 3 2 Keyboard Test Keyboard Test checks operation of keys Select Keyboard Test from Self Test
49. tool The scan tool does not require power from the vehicle to perform this function Internal battery power can be used To look up DTC definitions select Code Lookup from the OBDII Function List and press ENTER NOTE When entering codes only one character can be changed at a time To enter a code e Use the LEFT RIGHT arrow keys to move the symbol under the character that needs to be changed The cursor moves to the right and wraps around to the beginning when the end is reached e Use the UP DOWN arrow keys to change the selected character e Press the ENTER key to display the definition After entering the code and pressing ENTER the code and definition display If the DTC is manufacturer specific or does not exist for the vehicle some information can be determined based on the range of the DTC see page 24 In the definition screen pressing the 2 or 8 arrow key increments decrements the code and its definition Undefined codes are skipped Press the BACK key to return to the Enter Code screen Press the BACK key again to return to the OBDII Function List NOTE Refer to an appropriate vehicle service manual for manufacturer specific codes 9620 Professional OBD II Scan Tool 23 Section 3 Diagnostic Trouble Codes DTC 3 1 DTC Format Diagnostic Trouble Codes DTCs consist of a five digit alphanumeric code The DTC format and types are shown below When the on board computer recognizes and iden
50. user interface e ENTER Used to select or answer a software request e HELP Used to request help when the symbol is displayed in the lower right hand corner of the display e BACK Used to move one screen back in scan tool flow e ARROWS UP DOWN Used to move the solid cursor in the direction of the arrow or scroll the data list in the direction you want to move the list LEFT RIGHT Used to select and deselect items in custom lists This key is also used to answer questions by selecting yes or no ON OFF Used to turn scan tool ON and OFF when not powered by vehicle Momen tarily press and release button when turning ON to allow boot process 1 3 2 Display The scan tool has a 4 line x 20 character backlit Liquid Crystal Display LCD for easy viewing The backlighting is disabled when the scan tool is powered by its internal batteries This gives the user a large viewing area to display most Help and Instructional messages It puts more information on the display instead of having to refer to printed materials Again the display will support a number of helpful characters that will prompt the user through test routines These characters are shown below Question Mark in lower right corner means there is help available for this screen or current selectable item Pointer cursor is used to indicate current selectable choice Down Arrow indicates there is additional information on the next screen U
51. vice proce dures WARNING Some vehicles are equipped with safety air bags You must follow vehicle service manual cautions when working around the air bag components or wiring If the cautions are not followed the air bag may open up unexpectedly resulting in personal injury Note that the air bag can still open up several minutes after the ignition key is off or even if the vehicle battery is disconnected because of a special energy reserve module 4 9620 Professional OBD II Scan Tool Closed Loop CL A feedback system that uses the O2 Sensor s to monitor the results of combustion Based on the signal s from the O2 sensor s the PCM modifies the air fuel mixture to maintain optimum performance with lowest emissions In closed loop mode the PCM can fine tune control of a system to achieve an exact result Co Carbon Monoxide Continuous Memory Codes See Pending Codes CPS Crankshaft Position Sensor Sends a frequency signal to the PCM It is used to reference fuel injector operation and synchronize spark plug firing on distributorless ignition systems DIS CTS Coolant Temperature Sensor A resistance sensor that sends a voltage signal to the PCM indicating the temperature of the coolant This signal tells the PCM whether the engine is cold or warm Data Link Connector DLC Connector providing access and or control of the vehicle information operating conditions and diagnostic information
52. when a DTC is indicated by vehicle 9620 Professional OBD II Scan Tool 17 Once trigger method is selected scan tool will begin recording data when trigger event occurs either a DTC occurs or ENTER key is pressed The time is recorded and data from the last five frames is saved Data will continue to be saved until either the record memory is full or the technician presses ENTER Press ENTER and the scan tool establishes a communication link with the vehicle If Manual Trigger is selected scan tool initializes by recording first five frames When done press ENTER If Trigger On Codes was selected then scan tool triggers when a DTC is stored in vehicle Press BACK key twice to return to OBDII Function List WARNING TWO PEOPLE SHOULD BE IN VEHICLE WHEN DRIVING ON ROAD ONE TODRIVE AND THE OTHER TOATTENDTO THE EQUIPMENT Scan tool recording times vary A recording consists of 5 frames of data prior to trigger and several frames after trigger Amount of PIDs recorded determine number of frames After a recording scan tool displays a prompt to playback recording Answer YES to display recorded data or NO to return to OBDII Function List 2 3 11 Vehicle Info Vehicle Info function enables scan tool to request vehicle s VIN number and calibration ID s which uniquely identifies software version in vehicle control module s This function applies to Model Year 2000 and later OBD II compliant vehicles The scan tool can
53. with symbol e Use LEFT arrow key to deselect all marked PIDs e Use the ENTER key to link to the vehicle and retrieve the marked PIDs When finished selecting PIDs press ENTER key to begin viewing them NOTE Refer to Appendix A for a complete list of PIDs View Data Setup View Data Setup allows display of PIDs on one two three or four lines Selecting fewer lines of data provides faster update speeds The scan tool default is four line display When scan tool links to vehicle PIDs will display Navigate through PID list with following keys e Press UP DOWN arrow keys to scroll Up Down line by line through list e Press LEFT RIGHT arrow keys to Page Up Page Down e Press BACK key to return to Select Data To View menu The same parameter may appear twice if vehicle is equipped with more than one computer module Powertrain Control Module PCM Transmission Control Module TCM etc The scan tool identifies them by identification names ID assigned by manufacturer i e 10 1A etc The computer module ID blinks in parentheses If one or more modules stops responding the scan tool displays a message that the module is not responding and asks to continue without it If NO is selected scan tool attempts to reestablish communication with that module 14 9620 Professional OBD II Scan Tool 3 2 Code Lookup Code Lookup is used to look up definitions of Diagnostic Trouble Codes DTCs stored in the scan
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