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Home >> Lexus >> 2009 >> LS 600hL >> Repair and Diagnosis >> External Pages >> Different car >> Section 34 (Door Lock) >> Smart Access System With Push-Button Start >> Driver Side Door Entry Lock and Unlock Functions do not Operate >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
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 assembly'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

        D-DOOR 

        DIAGNOSTIC NOTE NORMAL CONDITION CHART

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

        Driver Door 

        DIAGNOSTIC NOTE NORMAL CONDITION CHART

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

    NG:  Go to step  14

    OK: Go to next Step 

  3. CHECK WAVE ENVIRONMENT 
    1. Bring the electrical key transmitter near the front door outside handle LH, and perform a driver 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 may not possible.

      HINT:

      • When the electrical key transmitter is brought near the driver 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.
      Fig 1: Performing Entry Operational Inspection Front Door LH
      G05783147Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Entry functions operate normally. 

    NG: Go to step 4 

    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 / D + OVERHEAD
        2. Techstream - Select. Body Electrical / Smart Access / Smart Communication Check / Overhead + Driver Side.
      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
        Fig 2: Identifying Door Lock Height (Driver Side)
        G05783169Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        If the buzzer sounds, it can be determined that the driver 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 (FRONT DOOR ECU LH - CERTIFICATION ECU) 
    Fig 3: Identifying N10 ECU Connector Terminals And L15 ECU Connector Terminals
    G05783170Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N10 ECU connector
    2. Disconnect the L15 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
      N10-17 (CLGI) - L15-33 (CLG1) Always Below 1 Ω
      N10-7 (CGBI) - L15-34 (CG1B) Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next Step 

  6. CHECK HARNESS AND CONNECTOR (FRONT DOOR ECU LH - ELECTRICAL KEY OSCILLATOR) 
    Fig 4: Identifying N9 ECU Connector Terminals And B1 Oscillator Connector Terminals
    G05783171Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N9 ECU connector.
    2. Disconnect the b1 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
      N9-26 (CLGO) - b1-10 (CLG) Always Below 1 Ω
      N9-17 (CGBO) - b1-5 (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 L15 ECU Connector Terminals And B1 Oscillator Connector Terminals
    G04951651Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L15 ECU connector
    2. Disconnect the b1 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
      L15-34 (CG1B) - b1-5 (CLGB) Always Below 1 Ω
      L15-33 (CLG1) - b1-10 (CLG) Always Below 1 Ω
      L15-34 (CG1B) or b1-5 (CLGB) - Body ground Always 10 kΩ or higher
      L15-33 (CLG1) or b1-10 (CLG) - Body ground Always 10 kΩ or higher

    NG: REPLACE FRONT DOOR ECU LH  (see FRONT DOOR )

    OK: Go to next Step 

  8. CHECK HARNESS AND CONNECTOR (FRONT DOOR ECU LH - DOOR ELECTRICAL KEY OSCILLATOR) 
    Fig 6: Identifying N10 ECU Connector Terminals And B1 Oscillator Connector Terminals
    G04951652Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N10 ECU connector
    2. Disconnect the b1 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
      N10-15 (SEL) - b1-4 (SEL) Always Below 1 Ω
      N10-15 (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 - FRONT DOOR OUTSIDE HANDLE LH) 
    Fig 7: Identifying B2 Handle Connector Terminals And B1 Oscillator Connector Terminals
    G05783174Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the b1 oscillator connector
    2. Disconnect the b2 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
      b1-3 (ANT3) - b2-5 (ANT3) Always Below 1 Ω
      b1-8 (ANT4) - b2-2 (ANT4) Always Below 1 Ω
      b1-3 (ANT3) - Body ground Always 10 kΩ or higher
      b1-8 (ANT4) - 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 REMOVAL )
    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 FRONT DOOR OUTSIDE HANDLE LH (OPERATION) 
    1. Replace the front 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 (FRONT DOOR OUTSIDE HANDLE LH IS DEFECTIVE) 

  12. CHECK FRONT DOOR ECU LH (OPERATION) 
    1. Replace the front door ECU LH with a new one or normally functioning one (see FRONT DOOR )
    2. Check that the entry function operates normally (see OPERATION CHECK  )

      OK: Operates normally 

    NG: REPLACE CERTIFICATION ECU  (See REMOVAL )

    OK: END (FRONT DOOR ECU LH IS DEFECTIVE) 

  13. CHECK FRONT DOOR ECU LH 
    Fig 8: Identifying Front Door ECU LH Connector Terminals
    G04951645Courtesy 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
      N10-12 (OSCB) - N10-19 (OSCE) Always 11 to 14 V

    NG: REPLACE FRONT DOOR ECU LH  (see FRONT DOOR )

    OK: Go to next Step 

  14. CHECK HARNESS AND CONNECTOR (FRONT DOOR ECU LH - DOOR ELECTRICAL KEY OSCILLATOR) 
    Fig 9: Identifying B1 Oscillator Connector Terminals And N10 ECU Connector Terminals
    G05783176Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N10 ECU connector
    2. Disconnect the b1 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
      N10-12 (OSCB) - b1-1 (B) Always Below 1 Ω
      N10-14 (SENS) - b1-6 (SENS) Always Below 1 Ω
      N10-19 (OSCE) - b1-7 (GND) Always Below 1 Ω
      b1-1 (B) - Body ground Always 10 kΩ or higher
      b1-6 (SENS) - Body ground Always 10 kΩ or higher
      b1-7 (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 - FRONT DOOR OUTSIDE HANDLE LH) 
    Fig 10: Identifying B1 Oscillator Connector Terminals And B2 Handle Connector Terminals
    G05783177Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the b1 oscillator connector.
    2. Disconnect the b2 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
      b1-2 (SGT4) - b2-6 (SGT3) Always Below 1 Ω
      b1-9 (TRG-) - b2-1 (TRG-) Always Below 1 Ω
      b1-2 (SGT4) - Body ground Always 10 kΩ or higher
      b1-9 (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 (FRONT DOOR ECU LH - FRONT DOOR OUTSIDE HANDLE LH) 
    Fig 11: Identifying N10 ECU Connector Terminals And B2 Handle Connector Terminals
    G05783178Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N10 ECU connector.
    2. Disconnect the b2 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
      N10-20 (TRG+) - b2-3 (TRG+) Always Below 1 Ω
      N10-20 (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 REMOVAL )
    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 FRONT DOOR OUTSIDE HANDLE LH (OPERATION) 
    1. Replace the front 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 FRONT DOOR ECU LH  (see FRONT DOOR )

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

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