Seat Belt Warning System How To Proceed With Troubleshooting

Restraints. Lexus Gs430, Gs300. Uzs190 Grs190
Seat Belt. Lexus Gs430, Gs300. Uzs190 Grs190

  1. VEHICLE BROUGHT TO WORKSHOP

  2. INSPECT BATTERY VOLTAGE

  3. CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)*

  4. PROBLEM SYMPTOMS TABLE

  5. OVERALL ANALYSIS AND TROUBLESHOOTING*

  6. REPAIR OR REPLACE

  7. CONFIRMATION TEST

Seat Belt Warning System -- How To Proceed With Troubleshooting


HINT:
  1. Use these procedures to troubleshoot the seat belt warning system.
  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 11 V, recharge or replace the battery before proceeding.

    NEXT


    3.CHECK COMMUNICATION FUNCTION OF 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


    4.PROBLEM SYMPTOMS TABLE

      Result:
      Result
      		Proceed to
      Fault is not listed in problem symptoms table
      		A
      Fault is listed in problem symptoms table
      		B


    		B.
    Go to step 6
    A


    5.OVERALL ANALYSIS AND TROUBLESHOOTING*

    1. Data List / Active Test (Click here)

    2. Terminals of ECU (Click here)

    3. On-vehicle Inspection (Click here)


    NEXT


    6.REPAIR OR REPLACE

      NEXT


      7.CONFIRMATION TEST

        NEXT

        END