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Home >> Lexus >> 2010 >> LS 600hL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System (Keyless Entry) (Diagnostics & Symptom Tests) >> Smart Access System With Push-Button Start >> Rear Door LH Entry Lock Function does not Operate >> Procedure
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Rear Door LH Entry Lock Function does not Operate: Procedure

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

      OK

      Locked doors unlock.

    NG → See step   10 

    OK: Go to next step 

  2. READ VALUE USING TECHSTREAM (DOOR LOCK POSITION SWITCH) 
    1. Using the Techstream, read the Data List. Refer to DATA LIST / ACTIVE TEST .
      REAR LEFT DOOR

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

      OK

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

    NG → See step   13 

    OK: Go to next step 

  3. READ VALUE USING TECHSTREAM (OUTSIDE HANDLE) 
    1. Using the Techstream, read the Data List. Refer to DATA LIST / ACTIVE TEST .
      REAR LEFT DOOR

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

      OK

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

    NG → See step   5 

    OK: Go to next step 

  4. CHECK REAR DOOR ECU LH (OPERATION) 
    1. Replace the rear door ECU LH with a new one or normally functioning one. Refer to COMPONENTS .
    2. Check that the entry function operates normally. Refer to OPERATION CHECK .

      OK

      Operates normally

    NG → See step   12 

    OK → END (REAR DOOR ECU LH IS DEFECTIVE) 

  5. CHECK REAR DOOR OUTSIDE HANDLE LH 
    Fig 1: Identifying D1 Connector Terminals (Rear Door Outside Handle LH)
    GTY116626Courtesy 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
      d1-1 (TRG-) - d1-3 (TRG+) ON Below 1 Ω
      d1-1 (TRG-) - d1-3 (TRG+) OFF 10 kΩ or higher

    NG → See step   11 

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - REAR DOOR OUTSIDE HANDLE LH) 
    Fig 2: Identifying O14 ECU Connector Terminals And D1 Handle Connector Terminals
    GTY117049Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O14 ECU connector.
    2. Disconnect the d1 handle connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      O14-20 (TRG+) - d1-3 (TRG+) Always Below 1 Ω
      d1-3 (TRG+) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  7. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE LH) 
    Fig 3: Identifying D2 Oscillator Connector And D1 Handle Connector Terminals
    GTY127726Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the d2 oscillator connector.
    2. Disconnect the d1 handle connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      d2-9 (TRG-) - d1-1 (TRG-) Always Below 1 Ω
      d1-1 (TRG-) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  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 .
    2. Check that the entry function operates normally. Refer to OPERATION CHECK .

      OK

      Operates normally

    NG → See step   9 

    OK → END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  9. CHECK REAR DOOR ECU LH (OPERATION) 
    1. Replace the rear door ECU LH with a new one or normally functioning one. Refer to COMPONENTS .
    2. Check that the entry function operates normally. Refer to OPERATION CHECK .

      OK

      Operates normally

    NG → See step   12 

    OK → END (REAR DOOR ECU LH IS DEFECTIVE) 

  10. GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  PROBLEM SYMPTOMS TABLE 
  11. REPLACE REAR DOOR OUTSIDE HANDLE LH. Refer to  COMPONENTS 
  12. REPLACE CERTIFICATION ECU. Refer to  REMOVAL 
  13. GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Rear Door LH LOCK/UNLOCK Functions do not Operate). Refer to  PROBLEM SYMPTOMS TABLE