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Home >> Lexus >> 2007 >> GS 450h >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Door Lock >> Smart Access System With Push-Button Start >> Driver Side Door Entry Lock Function does not Operate >> Inspection Procedure
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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 OF INTELLIGENT TESTER (DOOR COURTESY SWITCH) 
    1. Check the DATA LIST for proper functioning of the driver side door courtesy switch.

      Main body ECU RH: 

      NORMAL CONDITION CHART

      Item Measurement Item / Range (Display) Normal Condition
      D DOR CTY SW Driver side 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 OF INTELLIGENT TESTER (LOCK POSITION SWITCH) 
    1. Check the DATA LIST for proper functioning of the door lock position switch.

      Multiplex network master switch: 

      NORMAL CONDITION CHART

      Item Measurement Item / Range (Display) Normal Condition
      LOCK POS SW 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 OF INTELLIGENT TESTER (LOCK SWITCH) 
    1. Check the DATA LIST for proper functioning of the door lock switch.

      Certification ECU: 

      NORMAL CONDITION CHART

      Item Measurement Item / Range (Display) Normal Condition
      D TRIGGER SW Driver side-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 FRONT DOOR HANDLE ASSEMBLY OUTSIDE LH 

    OK: GO TO Next Step 

  5. CHECK OPERATION OF MULTIPLEX NETWORK DOOR ECU FRONT LH 
    1. After replacing the multiplex network door ECU front LH 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 FRONT LH IS DEFECTIVE)