Meter / Gauge System How To Proceed With Troubleshooting

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

  1. VEHICLE BROUGHT TO WORKSHOP

  2. INSPECT BATTERY VOLTAGE

  3. CHECK MULTIPLEX COMMUNICATION SYSTEM*

  4. CHECK CAN COMMUNICATION SYSTEM*

  5. PROBLEM SYMPTOMS TABLE

  6. OVERALL ANALYSIS AND TROUBLESHOOTING

  7. ADJUST, REPAIR OR REPLACE

  8. CONFIRMATION TEST

Meter / Gauge System -- How To Proceed With Troubleshooting


HINT:
  1. Use these procedures to troubleshoot the combination meter.
  2. *: Use the intelligent tester.


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


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

    NEXT


    3.CHECK MULTIPLEX COMMUNICATION SYSTEM*

    1. Use the intelligent tester to check if the multiplex communication system (MPX) is functioning.

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


    		B.
    Go to MULTIPLEX COMMUNICATION SYSTEM
    A


    4.CHECK CAN COMMUNICATION SYSTEM*

    1. Use the intelligent tester to check if the CAN communication system is functioning.

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


    		B.
    Go to CAN COMMUNICATION SYSTEM
    A


    5.PROBLEM SYMPTOMS TABLE
      Refer to the Problem symptoms table (Click here).
      Result
      		Proceed to
      Fault is not listed in problem symptoms table
      		A
      Fault is listed in problem symptoms table
      		B


    		B.
    Go to step 7
    A


    6.OVERALL ANALYSIS AND TROUBLESHOOTING

    1. Terminals of ECU (Click here)

    2. Data List/Active Test (Click here)

    3. On-vehicle Inspection (Click here)


    NEXT


    7.ADJUST, REPAIR OR REPLACE

      NEXT


      8.CONFIRMATION TEST

        NEXT

        END