LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Smart Access System With Push-Button Start >> Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START 
    1. Check that the entry lock and unlock function can be operated at each door.

      Result 

      SMART ACCESS SYSTEM WITH PUSH-BUTTON START

      Result Proceed to
      Entry function can be performed A
      Entry function cannot be performed B

    B: GO TO DTC OF OTHER COMPONENTS (PROCEED TO PROBLEM SYMPTOM FLOWCHART FOR EACH DOOR) (See  PROBLEM SYMPTOMS TABLE   ) 

    A: GO TO NEXT STEP 

  2. CHECK LUGGAGE DOOR OPENER OPERATION 
    1. When the luggage compartment door opener switch is operated, check that the luggage compartment door opens.

      Result 

      LUGGAGE DOOR OPENER OPERATION

      Result Proceed to
      Luggage compartment door opens (w/o power trunk opener and closer system) A
      Luggage compartment door does not open (w/o power trunk opener and closer system) B
      Luggage compartment door opens (w/ power trunk opener and closer system) C
      Luggage compartment door does not open (w/ power trunk opener and closer system) D

    B: GO TO LUGGAGE COMPARTMENT DOOR OPENER SYSTEM  (See LUGGAGE COMPARTMENT DOOR OPENER SYSTEM )

    C: Go to step   11 

    D: GO TO POWER TRUNK LID SYSTEM  (See POWER TRUNK LID SYSTEM )

    A: GO TO NEXT STEP 

  3. READ VALUE OF INTELLIGENT TESTER OR TECHSTREAM (LUGGAGE COMPARTMENT DOOR OPENER SWITCH) 
    1. Using the intelligent tester or Techstream, read the Data List.
      1. Intelligent tester

        BODY NO.4 (Rear room junction block ECU) 

        INTELLIGENT TESTER - BODY NO.4 (REAR ROOM JUNCTION BLOCK ECU)

        Tester Display Measurement Item/Display Normal Condition Diagnostic Note
        LUGG PUSH SW Luggage compartment door opener switch / ON or OFF ON: Luggage compartment door opener switch is pushed
        OFF: Luggage compartment door opener switch is not pushed
        -
      2. Techstream

        Body No.4 (Rear room junction block ECU) 

        TECHSTREAM - BODY NO.4 (REAR ROOM JUNCTION BLOCK ECU)

        Tester Display Measurement Item/Display Normal Condition Diagnostic Note
        Luggage Push Switch Luggage compartment door opener switch / ON or OFF ON: Luggage compartment door opener switch is pushed
        OFF: Luggage compartment door opener switch is not pushed
        -

        OK: On tester screen, item changes between ON and OFF according to above chart. 

    NG: Go to step   9 

    OK: GO TO NEXT STEP 

  4. CHECK WAVE ENVIRONMENT 
    1. Bring the electrical key transmitter near the electrical key antenna (in rear bumper), and perform an entry luggage compartment open function check.
      Fig 1: Identifying Electrical Key Transmitter Position (In Rear Bumper)
      G04951628Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: If the key is brought within 0.2 m (0.6 ft) of the rear bumper, communication is not possible.

      HINT:

      • When the electrical key transmitter is brought near the electrical key antenna, 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 

      WAVE ENVIRONMENT

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

    B: AFFECTED BY WAVE INTERFERENCE 

    A: GO TO NEXT STEP 

  5. KEY DIAGNOSTIC MODE 
    Fig 2: Identifying Electrical Key Transmitter Position
    G04951635Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Diagnostic mode inspection (rear inside 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 / LUGG + OVERHEAD /
        2. Techstream - Select: Body Electrical / Smart Access / Smart Communication Check / Overhead + Luggage /
      5. When the electrical key transmitter is held at the same height as the rear bumper upper surface and aligned with the center of the rear of the vehicle, check that the wireless door lock buzzer sounds.

        HINT:

        If the buzzer sounds, it can be determined that the luggage compartment exterior transmitter is operating normally.

        OK: Wireless door lock buzzer sounds 

    NG: Go to step 6 

    OK: REPLACE CERTIFICATION ECU 

  6. CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY ANTENNA - CERTIFICATION ECU) 
    Fig 3: Identifying R40 Electrical Key Antenna - L15 Certification ECU Connector Terminal
    G04951703Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the R40 antenna connector.
    2. Disconnect the L15 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      ELECTRICAL KEY ANTENNA - CERTIFICATION ECU

      Tester Connection Condition Specified Condition
      L15-31 (CLG8)-R40-1 (CLG5) Always Below 1 Ω
      L15-32 (CG8B)-R40-1 (CLGB) Always Below 1 Ω
      L15-31 (CLG8)-Body ground Always 10 kΩ or higher
      L15-32 (CG8B)-Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  7. CHECK ELECTRICAL KEY ANTENNA (OPERATION) 
    1. Replace the electrical key antenna with a new one or normally functioning one (see REMOVAL  ).
    2. Check that the entry luggage compartment open function operates normally.

      OK: Operates normally 

    NG: Go to step 8 

    OK: GO TO NEXT STEP 

  8. CHECK REAR JUNCTION BLOCK ECU (OPERATION) 
    1. Replace the luggage junction block ECU with a new one or normally functioning one.
    2. Check that the entry luggage compartment open function operates normally.

      OK: Operates normally 

    NG: REPLACE CERTIFICATION ECU 

    OK: END (JUNCTION BLOCK ECU IS DEFECTIVE) 

  9. INSPECT LUGGAGE COMPARTMENT DOOR OPENER SWITCH 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 4: Identifying Luggage Compartment Door Opener Switch Connector Terminal
      G04951704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      LUGGAGE COMPARTMENT DOOR OPENER SWITCH

      Tester Connection Switch Condition Specified Condition
      1 -2 OFF Below 1 Ω
      1-2 ON 10 kΩ or higher

    NG: REPLACE LUGGAGE COMPARTMENT DOOR OPENER SWITCH (See  LUGGAGE COMPARTMENT DOOR OPENER OUTER SWITCH   ) 

    OK: GO TO NEXT STEP 

  10. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR OPENER SWITCH - LUGGAGE ROOM JUNCTION BLOCK ECU) 
    Fig 5: Identifying S38 Luggage Compartment Door Opener Switch - S63 Luggage Room Junction Block ECU Connector Terminal
    G04951705Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S38 switch connector.
    2. Disconnect the S63 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      LUGGAGE COMPARTMENT DOOR OPENER SWITCH - LUGGAGE ROOM JUNCTION BLOCK ECU

      Tester Connection Condition Specified Condition
      S38-1 - Body ground Always Below 1 Ω
      S38-2 - S63-6 (LPSW) Always Below 1 Ω
      S38-2 - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU) 

  11. READ VALUE OF INTELLIGENT TESTER OR TECHSTREAM (LUGGAGE COMPARTMENT DOOR OPENER SWITCH) 
    1. Using the intelligent tester or Techstream, read the Data List.
      1. Intelligent tester

        BACK-DOOR (Luggage closer motor assembly) 

        INTELLIGENT TESTER - BACK-DOOR (LUGGAGE CLOSER MOTOR ASSEMBLY)

        Tester Display Measurement Item/Display Normal Condition Diagnostic Note
        DOOR HANDLE SW Luggage compartment door opener switch / ON or OFF ON: Luggage compartment door opener switch is pushed
        OFF: Luggage compartment door opener switch is not pushed
        -
      2. Techstream

        Back Door (Luggage closer motor assembly) 

        TECHSTREAM - BACK DOOR (LUGGAGE CLOSER MOTOR ASSEMBLY)

        Tester Display Measurement Item/Display Normal Condition Diagnostic Note
        Back Door Handle SW Luggage compartment door opener switch / ON or OFF ON: Luggage compartment door opener switch is pushed
        OFF: Luggage compartment door opener switch is not pushed
        -

        HINT:

        For vehicles with the power trunk opener and closer system, the Data List of the power trunk opener and closer ECU can be used to check the luggage compartment door opener switch information. For vehicles without the power trunk opener and closer system, the Data List of the luggage room junction block ECU can be used to check the luggage compartment door opener switch information.

        OK: On tester screen, item changes between ON and OFF according to above chart. 

    NG: Go to step   17 

    OK: GO TO NEXT STEP 

  12. CHECK WAVE ENVIRONMENT 
    Fig 6: Identifying Electrical Key Transmitter Position (In Rear Bumper)
    G04951628Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Bring the electrical key transmitter near the electrical key antenna (in rear bumper), and perform an entry luggage compartment open function check.
      NOTE: If the key is brought within 0.2 m (0.6 ft.) of the rear bumper, communication is not possible.

      HINT:

      • When the electrical key transmitter is brought near the electrical key antenna, 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 

      WAVE ENVIRONMENT

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

    B: REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY  (See REMOVAL )

    A: GO TO NEXT STEP 

  13. KEY DIAGNOSTIC MODE 
    Fig 7: Identifying Electrical Key Transmitter Position
    G04951635Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Diagnostic mode inspection (rear inside 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 / LUGG + OVERHEAD /
        2. Techstream - Select: Body Electrical / Smart Access / Smart Communication Check / Overhead + Luggage /
      5. When the electrical key transmitter is held at the same height as the rear bumper upper surface and aligned with the center of the rear of the vehicle, check that the wireless door lock buzzer sounds.

        HINT:

        If the buzzer sounds, it can be determined that the luggage compartment exterior transmitter is operating normally.

        OK: Wireless door lock buzzer sounds 

    NG: Go to step 14 

    OK: REPLACE CERTIFICATION ECU 

  14. CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY ANTENNA - CERTIFICATION ECU) 
    Fig 8: Identifying R40 Electrical Key Antenna - L15 Certification ECU Connector Terminal
    G04951708Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the R40 antenna connector.
    2. Disconnect the L15 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      ELECTRICAL KEY ANTENNA - CERTIFICATION ECU

      Tester Connection Condition Specified Condition
      L15-31 (CLG8)-R40-1 (CLG5) Always Below 1 Ω
      L15-32 (CG8B)-R40-1 (CLGB) Always Below 1 Ω
      L15-31 (CLG8)-Body ground Always 10 kΩ or higher
      L15-32 (CG8B)-Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  15. CHECK ELECTRICAL KEY ANTENNA (OPERATION) 
    1. Replace the electrical key antenna with a new one or normally functioning one (see REMOVAL  ).
    2. Check that the entry luggage compartment open function operates normally.

      OK: Operates normally 

    NG: Go to step 16 

    OK: END (ELECTRICAL KEY ANTENNA IS DEFECTIVE) 

  16. CHECK LUGGAGE DOOR CLOSER MOTOR (OPERATION) 
    1. Replace the luggage closer motor with a new one or normally functioning one (see TRUNK LID ACTUATOR ).
    2. Check that the entry luggage compartment open function operates normally.

      OK: Operates normally 

    NG: REPLACE CERTIFICATION ECU 

    OK: END (LUGGAGE CLOSER MOTOR IS DEFECTIVE) 

  17. INSPECT LUGGAGE COMPARTMENT DOOR OPENER SWITCH 
    Fig 9: Identifying Luggage Compartment Door Opener Switch Connector Terminal
    G04951704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      LUGGAGE COMPARTMENT DOOR OPENER SWITCH

      Tester Connection Switch Condition Specified Condition
      1 - 2 OFF Below 1 Ω
      1 - 2 ON 10 kΩ or higher

    NG: REPLACE LUGGAGE COMPARTMENT DOOR OPENER SWITCH (See  LUGGAGE COMPARTMENT DOOR OPENER OUTER SWITCH   ) 

    OK: GO TO NEXT STEP 

  18. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR OPENER SWITCH - LUGGAGE DOOR CLOSER MOTOR) 
    Fig 10: Identifying S38 Luggage Compartment Door Opener Switch - S43 Luggage Door Closer Motor Connector Terminal
    G04951710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S38 switch connector.
    2. Disconnect the S43 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      LUGGAGE COMPARTMENT DOOR OPENER SWITCH - LUGGAGE DOOR CLOSER MOTOR

      Tester Connection Condition Specified Condition
      S38-1 - Body ground Always Below 1 Ω
      S38-2 - S43-19 (LPSW) Always Below 1 Ω
      S38-2 - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY  (See REMOVAL )