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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 › Front Passenger Side Door Entry Lock and Unlock Functions do not Operate › Inspection Procedure

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'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

        P-DOOR 

        DIAGNOSTIC NOTE NORMAL CONDITION CHART

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

        Passenger Door 

        DIAGNOSTIC NOTE NORMAL CONDITION CHART

        Tester Display Measurement Item/Display Normal Condition Diagnostic Note
        Entry Sensor Front passenger side door touch sensor / ON or OFF ON Front passenger side door sensor is touched
        OFF Front passenger side door sensor is not touched        		 -
        Outside Handle Trigger SW Front passenger side door outside handle lock switch / ON or OFF ON Front passenger side door outside handle lock switch is pushed
        OFF Front passenger side door outside handle lock switch 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 front door outside handle RH, and perform a front passenger 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 front 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
        Fig 1: Identifying Door Lock Height (Front Passenger Side)
        G05783180Courtesy 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 / P + OVERHEAD
        2. Techstream - Select Body Electrical / Smart Access / Smart Communication Check / Overhead + Passenger Side
          Fig 2: Identifying Door Lock Height (Passenger Side)
          G05783153Courtesy 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 front passenger 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 RH - CERTIFICATION ECU) 
    Fig 3: Identifying L15 ECU Connector Terminals And N1 ECU Connector Terminals
    G05783182Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N1 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
      N1-17 (CLGI) - L15-35 (CLG2) Always Below 1 Ω
      N1-7 (CGBI) - L15-36 (CG2B) Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next Step 

  6. CHECK HARNESS AND CONNECTOR (FRONT DOOR ECU RH - ELECTRICAL KEY OSCILLATOR) 
    Fig 4: Identifying N2 ECU Connector Terminals And A1 Oscillator Connector Terminals
    G05783183Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N2 ECU connector
    2. Disconnect the a1 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
      N2-26 (CLGO) - a1-10 (CLG) Always Below 1 Ω
      N2-17 (CGBO) - a1-5 (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 A1 Oscillator Connector Terminals
    G04951661Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L15 ECU connector
    2. Disconnect the a1 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
      L15-36 (CG2B) - a1-5 (CLGB) Always Below 1 Ω
      L15-35 (CLG2) - a1-10 (CLG) Always Below 1 Ω
      L15-36 (CG2B) or a1-5 (CLGB) - Body ground Always 10 kΩ or higher
      L15-35 (CLG2) or a1-10 (CLG) - Body ground Always 10 kΩ or higher

    NG: REPLACE FRONT DOOR ECU RH  (See REMOVAL )

    OK: Go to next Step 

  8. CHECK HARNESS AND CONNECTOR (FRONT DOOR ECU RH - DOOR ELECTRICAL KEY OSCILLATOR) 
    Fig 6: Identifying A1 Oscillator Connector Terminals And N1 ECU Connector Terminals
    G04951638Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N1 ECU connector
    2. Disconnect the a1 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
      N1-15 (SEL) - a1-4 (SEL) Always Below 1 Ω
      a1-4 (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 - FRONT DOOR OUTSIDE HANDLE RH) 
    Fig 7: Identifying A1 Oscillator Connector Terminals And A2 Handle Connector Terminals
    G05783186Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the a 1 oscillator connector
    2. Disconnect the a2 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
      a1-3 (ANT1) - a2-5 (ANT1) Always Below 1 Ω
      a1-8 (ANT2) - a2-2 (ANT2) Always Below 1 Ω
      a1-3 (ANT1) - Body ground Always 10 kΩ or higher
      a1-8 (ANT2) - 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 FRONT 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 FRONT DOOR OUTSIDE HANDLE RH (OPERATION) 
    1. Replace the front door outside handle RH 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 RH IS DEFECTIVE) 

  12. CHECK FRONT DOOR ECU RH (OPERATION) 
    1. Replace the front door ECU RH 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 RH IS DEFECTIVE) 

  13. CHECK FRONT DOOR ECU RH 
    Fig 8: Identifying Front Door ECU RH Connector Terminals
    G04951655Courtesy 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
      N1-12 (OSCB) - N1-19 (OSCE) Always 11 to 14 V

    NG: REPLACE FRONT DOOR ECU RH  (See REMOVAL )

    OK: Go to next Step 

  14. CHECK HARNESS AND CONNECTOR (FRONT DOOR ECU RH - DOOR ELECTRICAL KEY OSCILLATOR) 
    Fig 9: Identifying N1 ECU Connector Terminals And A1 Oscillator Connector Terminals
    G04951656Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N1 ECU connector
    2. Disconnect the a1 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
      N1-12 (OSCB) - a1-1 (B) Always Below 1 Ω
      N1-14 (SENS) - a1-6 (SENS) Always Below 1 Ω
      N1-19 (OSCE) - a1-7 (GND) Always Below 1 Ω
      a1-1 (B) - Body ground Always 10 kΩ or higher
      a1-6 (SENS) - Body ground Always 10 kΩ or higher
      a1-7 (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 RH) 
    Fig 10: Identifying A2 Handle Connector Terminals And A1 Oscillator Connector Terminals
    G05783162Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the a1 oscillator connector
    2. Disconnect the a2 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
      a1-2 (SGT2) - a2-6 (SGT1) Always Below 1 Ω
      a1-9 (TRG-) - a2-1 (TRG-) Always Below 1 Ω
      a1-2 (SGT2) - Body ground Always 10 kΩ or higher
      a1-9 (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 RH - FRONT DOOR OUTSIDE HANDLE RH) 
    Fig 11: Identifying N1 ECU Connector Terminals And A2 Handle Connector Terminals
    G05783190Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N1 ECU connector
    2. Disconnect the a2 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
      N1-20 (TRG+) - a2-3 (TRG+) Always Below 1 Ω
      a2-3 (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 FRONT 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 FRONT DOOR OUTSIDE HANDLE RH (OPERATION) 
    1. Replace the front door outside handle RH 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 RH  (See REMOVAL )

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

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