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Home › Lexus › 2008 › LS 600hL › 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

Inspection Procedure

NOTE: Before performing the inspection, check that there are no problems related to the "CAN COMMUNICATION SYSTEM" and "LIN COMMUNICATION SYSTEM".
  1. CHECK POWER DOOR LOCK OPERATION 
    1. When the master switch's door control switch is operated, check that the locked doors unlock (see OPERATION CHECK  )

      OK: Locked doors unlock. 

    NG: GO TO POWER DOOR LOCK CONTROL SYSTEM 

    OK: Go to next Step 

  2. READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM 
    1. Using the intelligent tester or Techstream, read the Data List (see DATA LIST / ACTIVE TEST  )
      1. Intelligent tester

        RL-DOOR 

        DIAGNOSTIC NOTE NORMAL CONDITION CHART

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

        Rear Left Door 

        DIAGNOSTIC NOTE NORMAL CONDITION CHART

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

    NG:  Go to step  13

    OK: Go to next Step 

  3. CHECK WAVE ENVIRONMENT 
    1. Bring the electrical key transmitter near the rear door outside handle LH, and perform a rear left door entry lock and unlock operation check
      NOTE: If the key is brought within 0.2 m (0.656 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.

      OK: Entry functions operate normally. 

    NG: Go to step 4 

    Fig 1: Performing Operational Inspection Rear Left Passenger Side
    G05783149Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: AFFECTED BY WAVE INTERFERENCE 

  4. KEY DIAGNOSTIC MODE 
    1. Diagnostic mode inspection door electrical key oscillator
      1. Connect the intelligent tester or Techstream to the DLC3
      2. Turn the power 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 DIAGMODE / PR + OVERHEAD
        2. Techstream - Select: Body Electrical / Smart Access / Smart Communication Check / Overhead + Passenger Side Rear
          Fig 2: Identifying Door Key Diagnostic Mode Height (Passenger Side Rear)
          G05783154Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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 

    NG: Go to step 5 

    OK: END (CERTIFICATION ECU IS DEFECTIVE) 

  5. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - CERTIFICATION ECU) 
    Fig 3: Identifying L16 ECU Connector Terminals And O14 ECU Connector Terminals
    G05783194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O14 ECU connector.
    2. Disconnect the L16 ECU connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified Condition
      O14-7 (CLGI) - L16-8 (CLG3) Always Below 1 Ω
      O14-17 (CGBI) - L16-9 (CG3B) Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next Step 

  6. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - ELECTRICAL KEY OSCILLATOR) 
    Fig 4: Identifying D2 Oscillator Connector Terminals And O13 ECU Connector Terminals
    G05783195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O13 ECU connector.
    2. Disconnect the d2 oscillator connector
    3. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified Condition
      O13-26 (CGBO) - d2-10 (CLG) Always Below 1 Ω
      O13-17 (CLGO) - d2-5 (CLGB) Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next Step 

  7. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR ELECTRICAL KEY OSCILLATOR) 
    Fig 5: Identifying D2 Oscillator Connector Terminals And L16 ECU Connector Terminals
    G05783196Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L16 ECU connector
    2. Disconnect the d2 oscillator connector
    3. Measure the resistance according to the value (s) in the table below

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

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

    NG: REPLACE REAR DOOR ECU LH  (See REMOVAL )

    OK: Go to next Step 

  8. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - DOOR ELECTRICAL KEY OSCILLATOR) 
    Fig 6: Identifying O14 ECU Connector Terminals And D2 Oscillator Connector Terminals
    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 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      O14-16 (SEL) - d2-4 (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 

  9. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE LH) 
    Fig 7: Identifying D1 Handle Connector Terminals And D2 Oscillator Connector Terminals
    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 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      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 

  10. 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 (see OPERATION CHECK  )

      OK: Operates normally 

    NG: Go to step 11 

    OK: END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  11. 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 (see OPERATION CHECK  ).

      OK: Operates normally 

    NG: Go to step 12 

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

  12. 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 (see OPERATION CHECK  ).

      OK: Operates normally 

    NG: REPLACE CERTIFICATION ECU  (See REMOVAL )

    OK: END (REAR DOOR ECU LH IS DEFECTIVE) 

  13. CHECK REAR DOOR ECU LH 
    Fig 8: Identifying Rear Door ECU LH O14 Connector Terminals
    G04951665Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage according to the value (s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

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

    NG: REPLACE REAR DOOR ECU LH  (See REMOVAL )

    OK: Go to next Step 

  14. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - DOOR ELECTRICAL KEY OSCILLATOR) 
    Fig 9: Identifying O14 ECU Connector Terminals And D2 Oscillator Connector Terminals
    G04951666Courtesy 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 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      O14-12 (OSCB) - d2-1 (B) Always Below 1 Ω
      O14-14 (SENS) - d2-6 (SENS) Always Below 1 Ω
      O14-15 (OSCE) - d2-7 (GND) 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 

  15. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE LH) 
    Fig 10: Identifying D1 Handle Connector Terminals And D2 Oscillator Connector Terminals
    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 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      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 

  16. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - REAR DOOR OUTSIDE HANDLE LH) 
    Fig 11: Identifying O14 ECU Connector Terminals And D1 Handle Connector Terminals
    G05783202Courtesy 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 SPECIFIED CONDITION CHART

      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 

  17. 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 (see OPERATION CHECK  )

      OK: Operates normally 

    NG: Go to step 18 

    OK: END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  18. 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 (see OPERATION CHECK  ).

      OK: Operates normally 

    NG: REPLACE REAR DOOR ECU LH  (See REMOVAL )

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

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