Lighting System How To Proceed With Troubleshooting

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Lighting. Lexus Is250, Is220D. Gse20 Ale20

  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK

  3. INSPECT BATTERY VOLTAGE

  4. INSPECT 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 voltage:
        11 to 14 V
        If the voltage is below 11 V, recharge or replace the battery before proceeding.

      NEXT


      4.INSPECT 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 step 8
      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