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Home >> Lexus >> 2013 >> LS 460 Base, AWD >> 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 >> Symptom Tests >> Rear Door RH Entry Lock and Unlock Functions do not Operate >> Procedure

Rear Door RH Entry Lock and Unlock Functions do not Operate: 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

    NG → See step   18 

    OK: Go to next step 

  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.

    NG → See step   21 

    OK: Go to next step 

  3. READ VALUE USING TECHSTREAM 
    1. Using the Techstream, read the Data List.
      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
      -
      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
      -
      RESULT

      Result Proceed to
      Display does not change according to manual operation A
      Display changes according to manual operation B

    B → See step   10 

    A: Go to next step 

  4. CHECK REAR DOOR ECU RH 
    GTY117069Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Condition Specified Condition
      O3-12 (OSCB) - O3-15 (OSCE) Always 11 to 14 V

    NG → See step   19 

    OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR ECU RH) 
    GTY412785Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O23 oscillator 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
      O23-1 (B) - O3-12 (OSCB) Always Below 1 Ω
      O23-6 (SENS) - O3-14 (SENS) Always Below 1 Ω
      O23-7 (GND) - O3-15 (OSCE) Always Below 1 Ω
      O23-1 (B) - Body ground Always 10 kΩ or higher
      O23-6 (SENS) - Body ground Always 10 kΩ or higher
      O23-7 (GND) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE RH) 
    GTY407374Courtesy 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
      O23-2 (SGT6) - O24-6 (SGT5) Always Below 1 Ω
      O23-9 (TRG-) - O24-1 (TRG-) Always Below 1 Ω
      O23-2 (SGT6) - Body ground Always 10 kΩ or higher
      O23-9 (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 (REAR DOOR ECU RH - REAR DOOR OUTSIDE HANDLE RH) 
    GTY397347Courtesy 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

    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 [09/2012 - ] .
    2. Check that the entry function operates normally.

      OK

      Operates normally

    NG → See step   9 

    OK → END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  9. CHECK REAR DOOR OUTSIDE HANDLE RH (OPERATION) 
    1. Replace the rear door outside handle RH with a new one or normally functioning one. Refer to REMOVAL [09/2012 - ] .
    2. Check that the entry function operates normally.

      OK

      Operates normally

    NG → See step   19 

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

  10. CHECK WAVE ENVIRONMENT 
    1. Bring the electrical key transmitter near the rear right door outside handle, and perform a rear right door entry lock and unlock operation check.
      GTY419733Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      If the key is brought within 0.2 m (0.6 ft.) of the door handle, communication is not possible.

      HINT: 

      • When the electrical key transmitter is brought near the rear right passenger door outside handle, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
      • If the inspection result is that the operation check is normal, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.
      RESULT

      Result Proceed to
      Operation check fails A
      Operation check is normal B

    B → AFFECTED BY WAVE INTERFERENCE 

    A: Go to next step 

  11. KEY DIAGNOSTIC MODE 
    1. Diagnostic mode inspection (rear door RH outside oscillator)
      GTY413579Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Enter the following menus: Body Electrical/ Smart Access / Smart Communication Check /Overhead + Driver Side Rear.
      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

        HINT: 

        If the buzzer sounds, it can be determined that the rear right seat outside transmitter is operating normally.

        OK

        Wireless door lock buzzer sounds

    NG → See step   12 

    OK → END (CERTIFICATION ECU IS DEFECTIVE) 

  12. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - CERTIFICATION ECU) 
    GTY414214Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O23 oscillator connector.
    2. Disconnect the L16 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      O23-5 (CLGB) - L16-11 (CG4B) Always Below 1 Ω
      O23-10 (CLG) - L16-10 (CLG4) Always Below 1 Ω
      O23-5 (CLGB) - Body ground Always 10 kΩ or higher
      O23-10 (CLG) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  13. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR ECU RH) 
    GTY412787Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O23 oscillator 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
      O23-4 (SEL) - O3-16 (SEL) Always Below 1 Ω
      O23-4 (SEL) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  14. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE RH) 
    GTY418474Courtesy 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
      O23-3 (ANT5) - O24-5 (ANT5) Always Below 1 Ω
      O23-8 (ANT6) - O24-2 (ANT6) Always Below 1 Ω
      O23-3 (ANT5) - Body ground Always 10 kΩ or higher
      O23-8 (ANT6) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  15. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION) 
    1. Replace the door electrical key oscillator with a new one or normally functioning one. Refer to COMPONENTS [09/2012 - ] .
    2. Check that the entry function operates normally.

      OK

      Operates normally

    NG → See step   16 

    OK → END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  16. CHECK REAR DOOR OUTSIDE HANDLE RH (OPERATION) 
    1. Replace the rear door outside handle RH with a new one or normally functioning one. Refer to REMOVAL [09/2012 - ] .
    2. Check that the entry function operates normally.

      OK

      Operates normally

    NG → See step   17 

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

  17. CHECK REAR DOOR ECU RH (OPERATION) 
    1. Replace the rear door ECU RH with a new one or normally functioning one. Refer to COMPONENTS [09/2012 - ] .
    2. Check that the entry function operates normally.

      OK

      Operates normally

    NG → See step   20 

    OK → END (REAR DOOR ECU RH IS DEFECTIVE) 

  18. GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2012 - ] 
  19. REPLACE REAR DOOR ECU RH. Refer to  COMPONENTS [09/2012 - ] 
  20. REPLACE CERTIFICATION ECU. Refer to  REMOVAL [09/2012 - ] 
  21. GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Rear Door RH LOCK/UNLOCK Functions do not Operate). Refer to  PROBLEM SYMPTOMS TABLE [09/2012 - ]