LIGHTING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use these procedures to troubleshoot the lighting system.

  • *: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. INSPECT BATTERY VOLTAGE

    Standard Voltage
    11 to 14 V

    If the voltage is below 11 V, recharge or replace the battery before proceeding.


    NEXT

  3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Use the intelligent tester to check if the CAN communication system is functioning normally.

      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output (for LHD) B
      CAN DTC is output (for RHD C

      B

      GO TO CAN COMMUNICATION SYSTEM Click here

      C

      GO TO CAN COMMUNICATION SYSTEM Click here

      A

  4. CHECK FOR DTC*


    1. Clear the DTC Click here.

    2. Recheck for DTC Click here.

      Result
      Result Proceed to
      DTC is not output A
      DTC is output B

      B

      GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

      A

  5. PROBLEM SYMPTOMS TABLE

    Result
    Result Proceed to
    Fault is not listed in problem symptoms table A
    Fault is listed in problem symptoms table B

    B

    Go to step 7
    A

  6. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Operation Check Click here.

    2. Terminals of ECU Click here.

    3. Data List / Active Test Click here.


      NEXT

  7. ADJUST, REPAIR OR REPLACE


    NEXT

  8. CONFIRMATION TEST


    NEXT
    END