Entry And Start System How To Proceed With Troubleshooting

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Door Lock. Lexus Gs430, Gs300. Uzs190 Grs190

  1. VEHICLE BROUGHT TO WORKSHOP

  2. INSPECT BATTERY VOLTAGE

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

  4. PROBLEM SYMPTOMS TABLE

  5. OVERALL ANALYSIS AND TROUBLESHOOTING*

  6. REPAIR OR REPLACEMENT

  7. CONFIRMATION TEST

Entry And Start System -- How To Proceed With Troubleshooting


HINT:
  1. Use these procedures to troubleshoot the entry and start 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.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


    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. On-vehicle Inspection (Click here)

    2. Data List / Active test

    3. Terminals of ECU

    4. Inspection


    NEXT


    6.REPAIR OR REPLACEMENT

      NEXT


      7.CONFIRMATION TEST

        NEXT

        END