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Home >> Lexus >> 2016 >> LS 460 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System (Keyless Entry) (Diagnostics & Symptom Tests) >> Symptom Tests >> Rear Door RH Entry Lock Function does not Operate [09/2015 - ] >> Procedure

Rear Door RH Entry Lock Function does not Operate [09/2015 - ]: 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

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

    Result:  NG

    NG 

    GO TO POWER DOOR LOCK CONTROL SYSTEM 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ] )

    Result:  OK

    OK 

    See step  2

  2. READ VALUE USING TECHSTREAM (DOOR LOCK POSITION SWITCH) 
    1. Using the Techstream, read the Data List.
      REAR RIGHT DOOR (REAR DOOR ECU RH)

      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Lock Position SW Rear RH side door lock position switch signal / ON or OFF ON: Rear RH side door is unlocked
      OFF: Rear RH side door is locked
      -

      OK

      On the screen, item changes between ON and OFF according to above chart.

    Result:  NG

    NG 

    GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Rear Door RH LOCK/UNLOCK Functions do not Operate) 

    (Refer to PROBLEM SYMPTOMS TABLE [09/2015 - ] )

    Result:  OK

    OK 

    See step  3

  3. READ VALUE USING TECHSTREAM (OUTSIDE HANDLE) 
    1. Using the Techstream, read the Data List.
      REAR RIGHT DOOR (REAR DOOR ECU RH)

      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Outside Handle Trigger SW Rear RH side door outside handle lock switch / ON or OFF ON: Rear RH side door outside handle lock switch is pushed
      OFF: Rear RH side door outside handle lock switch is not pushed
      -

      OK

      On the screen, item changes between ON and OFF according to above chart.

    Result:  NG

    NG 

    See step  5

    Result:  OK

    OK 

    See step  4

  4. CHECK REAR DOOR ECU RH (OPERATION) 
    1. Replace the rear door ECU RH with a new one or normally functioning one (Refer to COMPONENTS [09/2015 - 09/2016] Refer to COMPONENTS [09/2016 - ] ).
    2. Check that the entry function operates normally.

      OK

      Operates normally

    Result:  OK

    OK 

    END (REAR DOOR ECU RH IS DEFECTIVE) 

    Result:  NG

    NG 

    REPLACE CERTIFICATION ECU 

    (Refer to REMOVAL [09/2015 - ] )

  5. INSPECT REAR DOOR OUTSIDE HANDLE RH 
    GTY625219Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Switch Condition Specified Condition
      O24-3 (TRG+) - O24-1 (TRG-) ON Below 1 Ω
      O24-3 (TRG+) - O24-1 (TRG-) OFF 10 kΩ or higher

    Result:  NG

    NG 

    REPLACE REAR DOOR OUTSIDE HANDLE RH 

    (Refer to COMPONENTS [09/2015 - 09/2016] Refer to COMPONENTS [09/2016 - ] )

    Result:  OK

    OK 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (REAR DOOR OUTSIDE HANDLE RH - REAR DOOR ECU RH) 
    GTY621283Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O24 handle connector.
    2. Disconnect the O3 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      O24-3 (TRG+) - O3-20 (TRG+) Always Below 1 Ω
      O24-3 (TRG+) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (REAR DOOR OUTSIDE HANDLE RH - DOOR ELECTRICAL KEY OSCILLATOR) 
    GTY679710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O24 handle connector.
    2. Disconnect the O23 oscillator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      O24-1 (TRG-) - O23-9 (TRG-) Always Below 1 Ω
      O24-1 (TRG-) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  8

  8. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION) 
    1. Replace the door electrical key oscillator with a new one or normally functioning one (Refer to COMPONENTS [09/2015 - 09/2016] Refer to COMPONENTS [09/2016 - ] ).
    2. Check that the entry function operates normally.

      OK

      Operates normally

    Result:  OK

    OK 

    END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

    Result:  NG

    NG 

    See step  9

  9. CHECK REAR DOOR ECU RH (OPERATION) 
    1. Replace the rear door ECU RH with a new one or normally functioning one (Refer to COMPONENTS [09/2015 - 09/2016] Refer to COMPONENTS [09/2016 - ] ).
    2. Check that the entry function operates normally.

      OK

      Operates normally

    Result:  OK

    OK 

    END (REAR DOOR ECU RH IS DEFECTIVE) 

    Result:  NG

    NG 

    REPLACE CERTIFICATION ECU 

    (Refer to REMOVAL [09/2015 - ] )