LIGHTING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use the following procedure to troubleshoot the lighting system.

  • *: Use the GTS

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. INSPECT AUXILIARY BATTERY VOLTAGE


    1. Measure the auxiliary battery voltage with the power switch off.

      Standard voltage
      11 to 14 V (IG OFF)

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

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM*


    1. Use the GTS to check if the electronically controlled brake system is functioning normally.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Result Proceed to
      Electronically controlled brake system DTCs are not output A
      Electronically controlled brake system DTCs are output B

    B

    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM Click here

    A

  4. CHECK METER/GAUGE SYSTEM*


    1. Use the GTS to check if the meter/gauge system is functioning normally.

      Click here


      Body Electrical > Combination Meter > Trouble Codes
      Result
      Result Proceed to
      Meter/gauge system DTCs are not output A
      Meter/gauge system DTCs are output B

    B

    GO TO METER/GAUGE SYSTEM Click here

    A

  5. CHECK CAN COMMUNICATION SYSTEM*


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

      Click here

      Result
      Result Proceed to
      CAN communication system DTCs are not output A
      CAN communication system DTCs are output B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  6. CHECK FOR DTC*


    1. Check for DTCs.

      Click here


      Body Electrical > Main Body > Trouble Codes
      Body Electrical > HL AutoLeveling > Trouble Codes

    2. Clear the DTCs.

      Click here


      Body Electrical > Main Body > Clear DTCs
      Body Electrical > HL AutoLeveling > Clear DTCs

    3. Recheck for DTCs.

      Click here


      Body Electrical > Main Body > Trouble Codes
      Body Electrical > HL AutoLeveling > Trouble Codes
      Result
      Result Proceed to
      DTC output does not reoccur A
      DTC output reoccurs B

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  7. 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

  8. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Operation Check.

      Click here

    2. Terminals of ECU.

      Click here

    3. Data List / Active Test.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  9. ADJUST, REPAIR OR REPLACE

    Result
    Proceed to
    NEXT

    NEXT

  10. CONFIRM TEST

    Result
    Proceed to
    NEXT

    NEXT

    END