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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 LH Entry Lock and Unlock Functions do 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

        RL-Door (Rear door ECU LH) 

        INTELLIGENT TESTER - RL-DOOR (REAR DOOR ECU LH)

        Tester Display Measurement Item/Display Normal Condition Diagnostic Note
        ENTRY SENSOR Rear LH side door touch sensor / ON or OFF ON: Rear LH side door sensor is touched
        OFF: Rear LH side door sensor is not touched        		 -
        TRIGGER SW Rear LH side door outside handle lock switch / ON or OFF ON: Rear LH side door outside handle lock switch is pushed
        OFF: Rear LH side door outside handle lock switch is not pushed        		 -
      2. Techstream

        Rear Left Door (Rear door ECU LH) 

        TECHSTREAM - REAR LEFT DOOR (REAR DOOR ECU LH)

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

      Result 

      RESULT REFERENCE

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

    B: Go to step   9 

    A: GO TO NEXT STEP 

  3. CHECK REAR DOOR ECU LH 
    Fig 1: Identifying Rear Door ECU Connector Terminal
    G04951665Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      REAR DOOR ECU LH

      Tester Connection Condition Specified Condition
      O14-12 (OSCB)-O14-15 (OSCE) Always 11 to 14 V

    NG: REPLACE REAR DOOR ECU LH  (See REAR DOOR )

    OK: GO TO NEXT STEP 

  4. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR ECU LH) 
    Fig 2: Identifying d2 Door Electrical Key Oscillator - O14 Rear Door ECU Connector Terminal
    G04951666Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the d2 oscillator connector.
    2. Disconnect the O14 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR ECU LH

      Tester Connection Condition Specified Condition
      d2-1 (B) - O14-12 (OSCB) Always Below 1 Ω
      d2-6 (SENS) - O14-14 (SENS) Always Below 1 Ω
      d2-7 (GND)- O14-15 (OSCE) Always Below 1 Ω
      d2-1 (B) - Body ground Always 10 kΩ or higher
      d2-6 (SENS) - Body ground Always 10 kΩ or higher
      d2-7 (GND) - 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 LH) 
    Fig 3: Identifying d2 Door Electrical Key Oscillator - d1 Rear Door Outside Handle Connector Terminal
    G04951667Courtesy 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 

      DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE LH

      Tester Connection Condition Specified Condition
      d2-2(SGT8)-d1-6 (SGT7) Always Below 1 Ω
      d2-9(TRG-)-d1-1(TRG-) Always Below 1 Ω
      d2-2 (SGT8) - Body ground Always 10 kΩ or higher
      d2-9 (TRG-) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  6. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - REAR DOOR OUTSIDE HANDLE LH) 
    Fig 4: Identifying 014 ECU Connector And d1 Handle Connector
    G04951670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the 014 ECU connector.
    2. Disconnect the d1 handle connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      REAR DOOR ECU LH - REAR DOOR OUTSIDE HANDLE LH

      Tester Connection Condition Specified Condition
      d1-3 (TRG+) - O14-20 (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 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 8 

    OK: END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

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

      OK : 

      Operates normally 

    NG: REPLACE REAR DOOR ECU LH  (See REAR DOOR )

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

  9. CHECK WAVE ENVIRONMENT 
    1. Bring the electrical key transmitter near the rear left door outside handle, and perform a rear left door entry lock and unlock operation check.
      Fig 5: Identifying Electrical Key Transmitter Position
      G04951626Courtesy 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 left 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.

    B: AFFECTED BY WAVE INTERFERENCE 

    A: GO TO NEXT STEP 

  10. KEY DIAGNOSTIC MODE 
    1. Diagnostic mode inspection (rear door LH outside oscillator)
      1. Connect the intelligent tester or Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the tester on.
      4. Enter the following menus:
        1. Intelligent tester - Select: DIAGNOSIS / OBD/ MOBD / SMART ACCESS / ID UTILITY / SMART DAIGMODE / PR + OVERHEAD /
        2. Techstream - Select: Body Electrical / Smart Access / Smart Communication Check / Overhead + Passenger 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 left seat outside transmitter is operating normally.

        OK: Wireless door lock buzzer sounds 

        Fig 6: Identifying Electrical Key Transmitter Position
        G04951631Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step 11 

    OK: END (CERTIFICATION ECU IS DEFECTIVE) 

  11. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR-CERTIFICATION ECU) 
    Fig 7: Identifying d2 Door Electrical Key Oscillator - L16 Certification ECU Connector Terminal
    G04951669Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the d2 oscillator connector.
    2. Disconnect the L16 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      DOOR ELECTRICAL KEY OSCILLATOR-CERTIFICATION ECU

      Tester Connection Condition Specified Condition
      d2-5(CLGB)-L16-9 (CG3B) Always Below 1 Ω
      d2-10(CLG)-L16-8 (CLG3) Always Below 1 12
      d2-5 (CLGB) - Body ground Always 10 kΩ or higher
      d2-10(CLG)-Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  12. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR ECU LH) 
    Fig 8: Identifying d2 Door Electrical Key Oscillator - O14 Rear Door ECU Connector Terminal
    G04951640Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O14 ECU connector.
    2. Disconnect the d2 oscillator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR ECU LH

      Tester Connection Condition Specified Condition
      d2-4 (SEL)-O14-16 (SEL) Always Below 1 Ω
      d2-4 (SEL) - 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 OUTSIDE HANDLE LH) 
    Fig 9: Identifying d2 Door Electrical Key Oscillator - d1 Rear Door Outside Handle Connector Terminal
    G04951671Courtesy 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 

      DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE LH

      Tester Connection Condition Specified Condition
      d2-3 (ANT7)-d1-5 (ANT7) Always Below 1 Ω
      d2-8 (ANT8)-d1-2 (ANT8) Always Below 1 Ω
      d2-3 (ANT7) - Body ground Always 10 kΩ or higher
      d2-8 (ANT8) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  14. 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 15 

    OK: END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  15. CHECK REAR DOOR OUTSIDE HANDLE LH (OPERATION) 
    1. Replace the rear door outside handle LH 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 16 

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

  16. CHECK REAR DOOR ECU LH (OPERATION) 
    1. Replace the rear door ECU LH 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 LH IS DEFECTIVE) 

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