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Home >> Lexus >> 2008 >> GS 450h >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Smart Access System With Push-Button Start >> Rear Door RH Entry Lock Function does not Operate >> Inspection Procedure

Inspection Procedure

  1. CHECK MANUAL DOOR LOCK OPERATION 
    1. Check that the manual door lock function operates normally.

      OK: Manual door lock function operates normally. 

    NG:  GO TO POWER DOOR LOCK CONTROL SYSTEM 

    OK: Go to next step 

  2. READ VALUE USING TECHSTREAM (DOOR COURTESY SWITCH) 
    1. Check the DATA LIST for proper functioning of the driver side door courtesy switches.

      Main Body ECU RH: 

      MAIN BODY ECU RH DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Rr Door Courtesy SW Rear door courtesy switch / ON or OFF ON: Courtesy switch is pushed
      OFF: Courtesy switch is not pushed
      -

      OK: ON (door courtesy switch is pushed) appears on the screen. 

    NG:  GO TO LIGHTING SYSTEM

    OK: Go to next step 

  3. READ VALUE USING TECHSTREAM (LOCK POSITION SWITCH) 
    1. Check the DATA LIST for proper functioning of the door lock position switch.

      Multiplex Network Door ECU Rear RH: 

      MULTIPLEX NETWORK DOOR ECU REAR RH DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Door Unlock Detection Switch Door unlock detection switch signal / ON or OFF ON: Door is unlocked
      OFF: Door is locked
      -

      OK: ON (door is unlocked) appears on the screen. 

    NG:  GO TO POWER DOOR LOCK CONTROL SYSTEM 

    OK: Go to next step 

  4. READ VALUE USING TECHSTREAM (LOCK SWITCH) 
    1. Check the DATA LIST for proper functioning of the door lock switch.

      Multiplex Network Door ECU Rear RH: 

      MULTIPLEX NETWORK DOOR ECU REAR RH DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Trigger Switch Passenger side rear-door lock switch / ON or OFF ON: Lock switch is pushed
      OFF: Lock switch is not pushed
      -

      OK: ON (lock switch is pushed) appears on the screen. 

    NG: REPLACE REAR DOOR OUTSIDE HANDLE ASSEMBLY RH 

    OK: Go to next step 

  5. CHECK OPERATION OF MULTIPLEX NETWORK DOOR ECU REAR RH 
    1. After replacing the multiplex network door ECU rear RH with a normal one, check that the entry lock function operates normally.

      OK: Entry lock function operates normally. 

    NG: REPLACE CERTIFICATION ECU 

    OK: END (MULTIPLEX NETWORK DOOR ECU REAR RH IS DEFECTIVE)