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 FOR DTC*

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

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  4. 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 6
    A

  5. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU Click here.

    2. Data List/Active Test Click here.


      NEXT

  6. ADJUST, REPAIR OR REPLACE


    NEXT

  7. CONFIRMATION TEST


    NEXT
    END