LIGHTING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use the following procedure to troubleshoot the lighting system.

  • *: Use the GTS.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. INSPECT AUXILIARY BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

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


    NEXT

  3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


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


      Result
      Result Proceed to
      DTC is not output A
      DTC is output (for LHD) B
      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. 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

  5. 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

      ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE
      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