Lighting System How To Proceed With Troubleshooting

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Lighting. Lexus Gs430, Gs300. Uzs190 Grs190

  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK

  3. INSPECT BATTERY VOLTAGE

  4. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)*

  5. CHECK FOR DTC*

  6. PROBLEM SYMPTOMS TABLE

  7. OVERALL ANALYSIS AND TROUBLESHOOTING*

  8. ADJUST, REPAIR OR REPLACE

  9. CONFIRMATION TEST

Lighting System -- How To Proceed With Troubleshooting


HINT:
  1. Use these procedures to troubleshoot the lighting system.
  2. *: Use the intelligent tester.


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK

      NEXT


      3.INSPECT BATTERY VOLTAGE
        Standard:
        11 to 14 V
        If the voltage is below 11 V, recharge or replace the battery before proceeding.

      NEXT


      4.INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)*

      1. Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally.

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


      		B.
      Go to MULTIPLEX COMMUNICATION SYSTEM
      A


      5.CHECK FOR DTC*
        Result:
        Result
        		Proceed to
        DTC is not output
        		A
        DTC is output
        		B


      		B.
      Go to step 8
      A


      6.PROBLEM SYMPTOMS TABLE

        Result:

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


      		B.
      Go to step 8
      A


      7.OVERALL ANALYSIS AND TROUBLESHOOTING*

      1. Data List / Active Test (Click here)

      2. Terminals of ECU (Click here)

      3. Inspection


      NEXT


      8.ADJUST, REPAIR OR REPLACE

        NEXT


        9.CONFIRMATION TEST

          NEXT

          END