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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 >> All Door Entry Lock and Unlock Functions do not Operate >> Inspection Procedure

Inspection Procedure

  1. CHECK ALL DOOR ENTRY LOCK AND UNLOCK OPERATION 
    1. Check that the all door entry lock and unlock functions operate normally.

      Result: 

      RESULT CHART

      Result Proceed to
      Entry lock and unlock functions do not operate A
      Entry lock function does not operate B

      HINT:

      If the entry lock and unlock functions do not operate for a certain door, refer to the PROBLEM SYMPTOMS TABLE .

    B:  Go to step  4

    A: Go to next step 

  2. CHECK WIRELESS DOOR LOCK AND UNLOCK OPERATION 
    1. Check that the wireless door lock and unlock functions operate normally.

      OK: Wireless door lock and unlock functions operate normally. 

    NG:  GO TO WIRELESS DOOR LOCK CONTROL FUNCTION 

    OK: Go to next step 

  3. CHECK OPERATION OF KEY 
    1. After replacing the key with a normal one, check that the entry lock and unlock functions operate normally.

      OK: Entry lock and unlock functions operate normally. 

    NG: REPLACE CERTIFICATION ECU 

    OK: END (KEY IS DEFECTIVE) 

  4. 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 

  5. READ VALUE USING TECHSTREAM (DOOR COURTESY SWITCH) 
    1. Check the DATA LIST for proper functioning of each door courtesy switch.

      Main Body ECU RH: 

      MAIN BODY ECU RH DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D Door Courtesy SW Driver side door courtesy switch / ON or OFF ON: Courtesy switch is pushed
      OFF: Courtesy switch is not pushed
      -
      P Door Courtesy SW Front passenger side door courtesy switch / ON or OFF ON: Courtesy switch is pushed
      OFF: Courtesy switch is not pushed
      -
      Rr Door Courtesy SW Rear door courtesy light switch signal/ON or OFF ON: Courtesy switch is pushed
      OFF: Courtesy switch is not pushed
      -

      Multiplex Network Rear ECU: 

      MULTIPLEX NETWORK REAR ECU DATA LIST

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Luggage Courtesy Switch Luggage compartment door 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: REPLACE MAIN BODY ECU LH