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Innova CarScan Owner'S Manual Download Page 14

 

 

Onboard Diagnostics 

 

DIAGNOSTIC TROUBLE CODES (DTCs) 

 

 

12 

 

 

Manufacturer-Specific DTCs

 are codes that are controlled by 

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. 

 

The 3rd character is a 

letter

 or a 

numeric digit

 (0 thru 9, A thru F). 

It identifies the specific system or sub-system where the problem is 

located. 

 

The 4th and 5th characters are 

letters

 or 

numeric digits

 (0 thru 9, A 

thru F). They identify the section of the system that is malfunctioning. 

 

Summary of Contents for CarScan

Page 1: ......

Page 2: ...S DTCs 31 VIEWING SRS DTCs 32 ERASING DIAGNOSTIC TROUBLE CODES DTCs 33 ABOUT REPAIRSOLUTIONS 35 CONNECTING TO BLUETOOTH WIFI 36 LIVE DATA MODE VIEWING LIVE DATA 37 CUSTOMIZING LIVE DATA PIDs 38 RECORDING CAPTURING LIVE DATA 39 LIVE DATA PLAYBACK 43 ADDITIONAL TESTS SYSTEM TEST MENU 45 RESETTING THE OIL MAINTENANCE LIGHT 48 PERFORMING A SERVICE CHECK 49 BATTERY ALTERNATOR TEST 50 USING THE DLC LOCA...

Page 3: ...cts Engine parts become very hot when the engine is running To prevent severe burns avoid contact with hot engine parts Before starting an engine for testing or troubleshooting make sure the parking brake is engaged Put the transmission in park for automatic transmission or neutral for manual transmission Block the drive wheels with suitable blocks Connecting or disconnecting test equipment when t...

Page 4: ...ouble Codes DTCs and Freeze Frame data from your vehicle s computer and resets Monitor status 2 SYSTEM MENU button When pressed displays the System Test Menu 3 DTC FF button Displays the DTC View screen and or scrolls the LCD display to view DTCs and Freeze Frame data 4 LINK button When connected to a vehicle links the Scan Tool to the vehicle s PCM 5 M button When pressed displays the Main Menu ...

Page 5: ...d performing their diagnostic testing and no DTCs are present 11 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 12 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 Scan Tool s displa...

Page 6: ...D OR PERMANENT DTC YELLOW Indicates the currently displayed DTC is a PENDING DTC GREEN In cases where no codes are retrieved a No DTCs are presently stored in the vehicle s computer message is shown in green 7 Code Number Sequence The Scan Tool assigns a sequence number to each DTC that is present in the computer s memory starting with 1 This number indicates which code is currently displayed Code...

Page 7: ...cates an active Bluetooth connection has been established A solid grey icon indicates Bluetooth is not connected 15 Wi Fi icon Indicates Wi Fi communication status When ON indicates the scan tool is linked to a Wi Fi network When OFF indicates there is no Wi Fi connection INITIAL ADJUSTMENTS The first time the unit is connected to a vehicle you must select the desired display language English Fren...

Page 8: ...elivery 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 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 instan...

Page 9: ...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 computer ...

Page 10: ... dashboard to alert the driver The indicator lights only when an emissions related problem is detected The computer also assigns a numeric code for each specific problem that it detects and stores these codes in its memory for later retrieval These codes can be retrieved from the computer s memory with the use of a Code Reader or a Scan Tool On Board Diagnostics Second Generation OBD2 In addition ...

Page 11: ... 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 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 To expand emissions related system monitoring This...

Page 12: ... Monitor Some Monitors only require the ignition key to be turned On for them to run and complete their diagnostic testing Others may require a set of complex procedures such as starting the vehicle when cold bringing it to operating temperature and driving the vehicle under specific conditions before the Monitor can run and complete its diagnostic testing Monitor Has Has Not Run The terms Monitor...

Page 13: ...ne temperature rises at least 40 F 22 C from its temperature before starting and reaches at least 160 F 70 C The PCM uses warm up cycles as a counter to automatically erase a specific code and related data from its memory When no faults related to the original problem are detected within a specified number of warm up cycles the code is erased automatically DIAGNOSTIC TROUBLE CODES DTCs Diagnostic ...

Page 14: ... 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 The 3rd character is a letter or a numeric digit 0 thru 9 A thru F It identifies the specific system or sub system where the problem is located The 4th and 5th characters are letters or numeric digits 0 thru 9 A thru F They identify ...

Page 15: ...IL 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 On A DTC is saved in the computer s memory for later retrieval A Freeze Frame of the condi...

Page 16: ...re 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 ...

Page 17: ...uts 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 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 thr...

Page 18: ...y 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 computer commands the MIL On and the code is saved in its long term memory Type 2 misfires are the most severe type of misfire When a Type 2 misfire is sensed on the first trip the computer comman...

Page 19: ...des 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 sy...

Page 20: ... 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 su...

Page 21: ...at 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 c...

Page 22: ... 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 Mon...

Page 23: ...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 The table below lists current OB...

Page 24: ...ygen Sensor Monitor Once per trip 1 2 1 3 trips 40 Oxygen Sensor Heater Monitor Once per trip 1 2 1 3 trips 40 Exhaust Gas Recirculation EGR Monitor Once per trip 1 2 1 3 trips 40 Evaporative Emissions Controls Monitor Once per trip 1 2 1 3 trips 40 Secondary Air System AIR Monitor Once per trip 1 2 1 3 trips 40 NMHC Monitor Once per trip 1 2 1 3 trips 40 Nox Adsorber Monitor Once per trip 1 2 1 3...

Page 25: ...t must be removed before connecting the Scan Tool cable connector If the Scan Tool is ON turn it OFF BEFORE connecting the Scan Tool to the DLC 3 Connect the Scan Tool to the vehicle s DLC The cable connector is keyed and will only fit one way If you have problems connecting the cable connector to the DLC rotate the connector 180 If you still have problems check the DLC on the vehicle and on the S...

Page 26: ...e computer Press LINK to continue If the Scan Tool cannot link to the vehicle s computer after three attempts the message Contact Technical Support displays Press the SYSTEM MENU button to return to the System Menu Turn the ignition off and disconnect the Scan Tool Contact Technical Support for assistance 7 If the Scan Tool can decode the Vehicle Identification Number VIN for the vehicle under tes...

Page 27: ...gine size then press ENTER to continue The Select Transmission screen displays Select the desired transmission type then press ENTER to continue The Vehicle Information screen displays If the information shown is correct for the vehicle under test select Yes then press ENTER Proceed to step 10 If the information shown is not correct for the vehicle under test or if you wish to reselect the vehicle...

Page 28: ...Indicates that all engine systems are OK and operating normally All monitors supported by the vehicle have run and performed their diagnostic testing and no trouble codes are present All Monitor icons will be solid Yellow LED Indicates one of the following conditions A A PENDING CODE IS PRESENT If the yellow LED is illuminated it may indicate a Pending code is present Check the display for confirm...

Page 29: ... snapshot of engine condi tions at the time that the malfunction occurred is also saved in the vehicle s computer memory The record saved is called Freeze Frame data Saved engine conditions include but are not limited to engine speed open or closed loop operation fuel system commands coolant temperature calculated load value fuel pressure vehicle speed air flow rate and intake manifold pressure If...

Page 30: ...our vehicle To view OEM enhanced DTCs Select OEM Enhanced from the System Menu Refer to VIEWING OEM ENHANCED DTCs on page 28 to view OEM enhanced DTCs for your vehicle VIEWING OEM ENHANCED DTCs except Ford Mazda When make OEM Enhanced is chosen from the System Menu the Scan Tool retrieves OEM enhanced DTCs from the vehicle s computer 1 A One moment please message displays while the Scan Tool retri...

Page 31: ... computer disconnects To re establish communication press LINK again 4 When the last retrieved DTC has been displayed and DTC FF is pressed the Scan Tool returns to the Priority Code To exit the enhanced mode press SYSTEM MENU to return to the System Menu Select Global OBD then press ENTER to return to the Global OBD2 mode VIEWING OEM ENHANCED DTCs Ford Mazda only Mazda Enhanced DTCs are available...

Page 32: ...hicle s engine is not running an advisory message shows Start the engine and press ENTER to try again or press SYSTEM MENU to return to the System Menu If the KOEO Test was selected and the vehicle s engine is running an advisory message shows Turn the ignition OFF then back ON and press ENTER to try again or press SYSTEM MENU to return to the System Menu 4 If the KOER test was selected an instruc...

Page 33: ...om the System Menu a One moment please message displays while the Scan Tool retrieves the selected DTCs If ABS functionality is not supported an advisory message shows Press SYSTEM MENU to return to the System Menu If the Scan Tool fails to link to the vehicle s computer a Communication Error message shows Ensure your vehicle is OBD2 compliant Verify the connection at the DLC and verify the igniti...

Page 34: ...r disconnects To re establish communication press LINK again 4 When the last retrieved DTC has been displayed and DTC FF is pressed the Scan Tool returns to the Priority Code To exit the enhanced mode press SYSTEM MENU to return to the System Menu Select Global OBD then press ENTER to return to the Global OBD2 mode VIEWING SRS DTCs Refer to the manufacturer s website for vehicle makes covered Read...

Page 35: ...m Menu 3 If more than one code was retrieved press DTC to display additional codes one at a time Whenever the Scroll function is used to view additional codes the Scan Tool s communication link with the vehicle s computer disconnects To re establish communication press LINK again 4 When the last retrieved DTC has been displayed and DTC FF is pressed the Scan Tool returns to the Priority code To ex...

Page 36: ...proceed to step 3 3 Press and release ERASE A confirmation message shows If you are sure you want to proceed select Yes then press ENTER If you do not want to proceed select No then press ENTER to cancel the erase procedure 4 If you chose to erase DTCs a One moment please message displays while the erase function is in progress If the vehicle s engine is running an advisory message shows Turn the ...

Page 37: ...cross the country RepairSolutions 2 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 Repair Instructions View available repair instructions to properly perform the fix Video Tutorials Watch repair video tutorials for valuable repair tips Technical Service Bulletins Research kn...

Page 38: ...ect from the list of available devices 2 When Bluetooth pairing is complete a confirmation screen displays Click Continue If a Bluetooth connection cannot be established an advisory message displays Tap Try Again to repeat the pairing process 3 Follow the on screen prompts to connect to an available WiFi network You can automatically connect to the network your Smart Device is currently connected ...

Page 39: ...n help you One person should drive the vehicle while the other person observes the Scan Tool data Trying to drive and operate the Scan Tool at the same time is dangerous and could cause a serious traffic accident VIEWING LIVE DATA 1 While linked to the vehicle start the engine then press LD 2 A One moment please message displays while the Scan Tool establishes communication with the vehicle If the...

Page 40: ...layed on the Scan Tool to specifications in the vehicle s repair manual If desired you can customize the Live Data display to show only those PIDs you are interested in viewing See Customizing Live Data PIDs below for details CUSTOMIZING LIVE DATA PIDs You can customize the Live Data display by placing the Scan Tool in Custom Live Data mode and selecting only the PIDs that you wish to display 1 Wi...

Page 41: ...ckmark shows to confirm your selection Repeat until only the PIDs you want to display are selected To deselect a PID highlight the PID then press ENTER The checkmark is removed 4 When you are finished making your selection s press LD to continue If no PIDs have been selected an advisory message displays Press ENTER to return to the Custom Live Data menu 5 The Scan Tool is now in Custom Live Data m...

Page 42: ...he vehicle a Communication Error message displays Ensure your vehicle is OBD2 compliant Verify the connection at the DLC and verify the ignition is ON Turn the ignition OFF wait 5 seconds then back ON to reset the computer Press LINK to continue 3 Select Record by DTC Trigger then press ENTER The Select PIDs to Record screen displays 4 Press UP and DOWN to scroll through the available PIDs When a ...

Page 43: ... You can stop and save recorded Live Data at any time by pressing ENTER When recording is complete a confirmation screen displays Select Yes and press ENTER to playback Live Data see LIVE DATA PLAYBACK on page 43 for details or select No and press ENTER to return to the Live Data menu as desired If recording was not successful an advisory message displays Press ENTER to return to the Record Live D...

Page 44: ...n press ENTER The checkmark is removed To record all PIDs select Record All PIDs the press LD to continue 5 When you are finished making your selections press LD to continue The Record Live Data screen displays Highlight Start Recording Put the engine in the operating condition where the problem manifests itself If necessary drive the vehicle until you reach the vehicle speed at which the problem ...

Page 45: ...ata can be displayed on the screen at one time If additional PID data is available a small arrow is shown on the display Press UP and DOWN as necessary to view all available PID data When viewing recorded Live Data look for any irregularities in any of the PID values signal information LTFT RPM MAP TEMP etc If any PIDs are not within specification or irregularities are detected follow the procedur...

Page 46: ...BACK 44 To exit Live Data Playback mode select Exit Playback then press ENTER If there is no Live Data currently stored in the Scan Tool s memory an advisory message shows on the display Press LD to exit the Live Data Playback mode ...

Page 47: ...n of the Data Link Connector DLC for a specified vehicle Vehicle Information Displays the Vehicle Info menu which lets you retrieve and view reference information for the vehicle under test Firmware Version Displays the Scan Tool s firmware version Tool Library Displays the Tool Library menu which provides access to OBD1 and OBD2 DTC libraries and to definitions for Monitor icons and LED indicatio...

Page 48: ... retrieves results from the most recently performed O2 sensor tests from the on board computer s memory You may retrieve O2 sensor test results for only one test of one sensor at any given time 1 From the System Test menu select O2 Sensor Test then press ENTER 2 A One moment please message displays followed by the select sensor screen If O2 sensor test data is not presently stored in the vehicle s...

Page 49: ...lect Test screen Refer to the vehicle s service repair manual for information related to non continuous tests If OBD monitor test data is not presently stored in the vehicle s computer an advisory message displays Press M to return to the Main Menu If OBD monitor tests are not supported by the vehicle under test an advisory message displays Press M to return to the Main Menu 3 Select the desired t...

Page 50: ...puter a confirmation message displays Select Back then press ENTER to return to the System Test menu or press M to return to the Main Menu Some vehicle manufacturers do not allow diagnostic tools or other external devices to control vehicle systems If the EVAP Test is not supported by the vehicle under test an advisory message displays Press the M button to return to the Main Menu RESETTING THE OI...

Page 51: ...ssage displays Press M to return to the Main Menu If the oil reset was not successful an advisory message displays To perform the oil reset by procedure select Yes then press ENTER An instructional message displays showing the manual procedures for resetting the indicator light If you do not wish to perform the oil reset by procedure select No then press ENTER to return to the Main Menu PERFORMING...

Page 52: ...ttery s condition If the battery terminals are corroded or other damage is present clean or replace the battery as appropriate For unsealed batteries make sure the water level in each cell is above the battery plates Turn the ignition on DO NOT start the engine 5 Press ENTER to begin the battery check If the engine is running an advisory message shows Turn the engine off then turn the ignition on ...

Page 53: ...to the Main Menu To perform a charging system check 1 Press M and release The Main Menu displays 2 Select Battery Alternator Monitor then press ENTER The Battery Alternator Test Menu displays 3 Select Alternator Monitor then press ENTER An instructional message shows 4 Start and warm the engine to normal operating temperature Turn on the headlights Press ENTER to continue An instructional message ...

Page 54: ...d vehicle model year then press ENTER The Select Vehicle Manufacturer screen displays 3 Select the desired vehicle manufacturer then press ENTER The Select Vehicle Model screen displays 4 Select the desired model then press ENTER The DLC Location screen for the selected vehicle displays The DLC Location screen shows the selected vehicle make and model a description of the DLC location and whether ...

Page 55: ...BD2 mode press M The Main Menu displays 2 Select Vehicle Information then press ENTER The Vehicle Information menu displays 3 Select Vehicle ID then press ENTER The first time the Vehicle ID function is used it may take several minutes to retrieve the information from the vehicle s computer 4 When the retrieval process is completed the vehicle ID information displays 5 When you have finished viewi...

Page 56: ...DCOND and the number of times the vehicle s engine has been started IGNCNTR 1 With the Scan Tool in OBD2 mode press M The Main Menu displays 2 Select Vehicle Information then press the ENTER button The Vehicle Information menu displays 3 Select IPT then press ENTER 4 When the retrieval process is completed the In use Performance Tracking statistics for the vehicle under test display If In use Perf...

Page 57: ... LCD display provide an indication of the Completed Not Complete status for all I M Monitors supported by the vehicle under test The Tool Icons function displays the full name for each Monitor icon as well as descriptions of the meanings of other informational icons shown on the Scan Tool s display 1 From the Tool Library menu select Tool Icons then press ENTER The Tool Icons screen displays The s...

Page 58: ...press ENTER to return to the Enter DTC screen and enter additional DTCs or press M to return to the Main Menu If a definition for the DTC you entered is not available an advisory message shows Highlight Back then press ENTER to return to the Enter DTC screen and enter additional DTCs or press M to return to the Main Menu Viewing LED Meaning The SYSTEM STATUS LEDs on the Scan Tool provide a visual ...

Page 59: ...ol to English French or Spanish Unit of Measurement Sets the Unit of Measurement for the Scan Tool s display to USA or metric To enter the Tool Settings mode 1 While linked to the vehicle press and release M The Main Menu displays 2 Select Tool Settings then press ENTER The Tool Setting menu displays 3 Make adjustments and settings as follows Adjusting Display Brightness 1 Select Adjust Brightness...

Page 60: ...s menu then press ENTER The Hotkey Legend screen displays The screen shows a functional description of each of the Scan Tool s hotkeys 2 When you have finished viewing the Hotkey Legend press ENTER to return to the Tool Settings menu Selecting the Display Language 1 Select Language Selection in the Tool Settings menu then press ENTER The Language Selection screen dis plays 2 Select the desired dis...

Page 61: ...MENTS AND SETTINGS 59 2 Select the desired unit of measurement then choose Save to save your changes To return to the Tool Settings menu without making changes press M Exiting the MENU Mode Press M to return to the Main Menu ...

Page 62: ...Notes 60 ...

Page 63: ...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 port...

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