Entry And Start System How To Proceed With Troubleshooting

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Gr-Fse Starting. 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. CHECK FOR DTC*

  5. PROBLEM SYMPTOMS TABLE

  6. OVERALL ANALYSIS AND TROUBLESHOOTING*

  7. REPAIR OR REPLACE

  8. CONFIRMATION TEST

Entry And Start System -- How To Proceed With Troubleshooting


HINT:
  1. Use these procedures to troubleshoot the push-button start function.
  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.CHECK FOR DTC*

    1. Check for DTC and note any codes that are output.

    2. Delete DTC.

    3. Recheck DTC.

      Result
      Result
      		Proceed to
      DTC does not reoccur
      		A
      DTC reoccurs
      		B



    		B.
    GO TO DIAGNOSTIC TROUBLE CODE CHART
    A


    5.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 7
    A


    6.OVERALL ANALYSIS AND TROUBLESHOOTING*

    1. Terminals of ECU (Click here)

    2. Data List/Active Test (Click here)


    NEXT


    7.REPAIR OR REPLACE

      NEXT


      8.CONFIRMATION TEST

        NEXT

        END