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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Smart Access System With Push-Button Start >> Rear Door RH Entry Unlock Function does not Operate >> Inspection Procedure
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Inspection Procedure

  1. CHECK POWER DOOR LOCK OPERATION 
    1. When the master switch assembly's door control switch is operated, check that the locked doors unlock.

      Result 

      POWER DOOR LOCK OPERATION

      Result Proceed to
      Door locks operate normally OK
      Door locks do not operate normally NG

    NG: GO TO POWER DOOR LOCK CONTROL SYSTEM (See  POWER DOOR LOCK CONTROL SYSTEM   ) 

    OK: GO TO NEXT STEP 

  2. READ VALUE OF INTELLIGENT TESTER OR TECHSTREAM 
    1. Using the intelligent tester or Techstream, read the Data List.
      1. Intelligent tester

        RR-Door (Rear door ECU RH) 

        INTELLIGENT TESTER - RR-DOOR (REAR DOOR ECU RH)

        Tester Display Measurement Item/Display Normal Condition Diagnostic Note
        ENTRY SENSOR Rear RH side door touch sensor / ON or OFF ON: Rear RH side door sensor is touched
        OFF: Rear RH side door sensor is not touched
        -
      2. Techstream

        Rear Right Door (Rear door ECU RH) 

        TECHSTREAM - REAR RIGHT DOOR (REAR DOOR ECU RH)

        Tester Display Measurement Item/Display Normal Condition Diagnostic Note
        Entry Sensor Rear RH side door touch sensor / ON or OFF ON: Rear RH side door sensor is touched
        OFF: Rear RH side door sensor is not touched
        -

        OK: On tester screen, item changes between ON and OFF according to above chart. 

    NG: Go to step   4 

    OK: GO TO NEXT STEP 

  3. CHECK REAR DOOR ECU RH (OPERATION) 
    1. Replace the rear door ECU RH with a new one or normally functioning one (see REAR DOOR ).
    2. Check that the entry function operates normally.

      OK: Operates normally 

    NG: REPLACE CERTIFICATION ECU 

    OK: END (REAR DOOR ECU RH IS DEFECTIVE) 

  4. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR ECU RH) 
    Fig 1: Identifying O3 Rear Door ECU Connector And c2 Door Electrical Key Oscillator Connector
    G04951642Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O3 ECU connector.
    2. Disconnect the c2 oscillator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR ECU RH

      Tester Connection Condition Specified Condition
      O3-16(SEL)-c2-4(SEL) Always Below 1 Ω
      O3-16 (SEL) -Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  5. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE RH) 
    Fig 2: Identifying c2 Door Electrical Key Oscillator Connector And c1 Rear Door Outside Handle Connector
    G04951643Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the c2 oscillator connector.
    2. Disconnect the c1 handle connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE RH

      Tester Connection Condition Specified Condition
      c2-2 (SGT6)-c1-6 (SGT5) Always Below 1 Ω
      c2-2 (SGT6) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  6. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION) 
    1. Replace the door electrical key oscillator with a new one or normally functioning one (see REAR DOOR ).
    2. Check that the entry function operates normally.

      OK: Operates normally 

    NG: Go to step 7 

    OK: END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  7. CHECK REAR DOOR OUTSIDE HANDLE RH (OPERATION) 
    1. Replace the rear door outside handle RH with a new one or normally functioning one (see REMOVAL  ).
    2. Check that the entry function operates normally.

      OK: Operates normally 

    NG: Go to step 8 

    OK: END (REAR DOOR OUTSIDE HANDLE RH IS DEFECTIVE) 

  8. REPLACE REAR DOOR ECU RH (OPERATION) 
    1. Replace the rear door ECU RH with a new one or normally functioning one (see REAR DOOR )
    2. Check that the entry function operates normally.

      OK: Operates normally 

    NG: REPLACE CERTIFICATION ECU 

    OK: END (REAR DOOR ECU RH IS DEFECTIVE)