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Home >> Lexus >> 2007 >> GS 430 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Smart Access System With Push-Button Start >> Entry Interior Alarm does not Sound >> Inspection Procedure

Inspection Procedure

HINT:

The smart access system with push-button start is part of the large-scale body multiplex communication system. The first step in any repair is to confirm the proper operation of the multiplex communication system. Perform the troubleshooting after proper operation of the multiplex communication has been verified.

  1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (COMBINATION METER) 
    1. Select the ACTIVE TEST, use the intelligent tester to generate a control command, and then check that the meter operates.

      Meter ECU: 

      METER ECU - ACTIVE TEST LIST

      Item Test Details Diagnostic Note
      KEY REMIND BUZZER Key reminder buzzer ON / OFF -

      OK: 

      Key reminder buzzer sounds. 

    NG:  GO TO COMBINATION METER

    OK: REPLACE CERTIFICATION ECU ASSEMBLY