LIGHTING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use the following procedure to troubleshoot the lighting system.

  • *1: Use the intelligent tester.

  • *2: for HID Headlight


  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*1, *2


    1. Check for DTCs Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs Click here.

      Result
      Result Proceed to
      DTC output does not reoccur A
      DTC output reoccurs B

      B

      Go to DIAGNOSTIC TROUBLE CODE CHART Click here

      A

  4. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table Click here.

      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


    1. Operation Check*2 Click here

    2. Terminals of ECU*2 Click here

    3. Data List / Active Test*2 Click here


      NEXT

  6. ADJUST, REPAIR OR REPLACE


    NEXT

  7. CONFIRMATION TEST


    NEXT
    END