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Home › Lexus › 2009 › LS 460 AWD › 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

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 

      RESULT CHART

      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 

      RESULT CHART

      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 USING TECHSTREAM (LUGGAGE COMPARTMENT DOOR OPENER SWITCH) 
    1. Using the Techstream, read the Data List.

      Body No. 4 (Rear room junction block ECU) 

      BODY NO. 4 (REAR ROOM JUNCTION BLOCK ECU) DATA LIST REFERENCE

      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 the 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.
      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.
        Fig 1: Identifying Distance Between Key And Rear Bumper
        G04951628Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • 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 

        RESULT CHART

        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 
    1. Diagnostic mode inspection (rear inside oscillator)
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Enter the following menus: 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.
        Fig 2: Identifying Distance Between Key And Rear Bumper
        G04951635Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        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 Antenna Connector And L15 ECU Connector Terminals
    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 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      L15-31 (CLG8) - R40-1 (CLG5) Always Below 1 Ω
      L15-32(CG8B) - R40-2 (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  9

      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.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      1 - 2 OFF Below 1 Ω
      1 - 2 ON 10 kΩ or higher
      Fig 4: Inspecting Luggage Compartment Door Opener Switch
      G04951704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      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 Switch Connector And S63 ECU Connector Terminals
    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 

      RESISTANCE SPECIFICATION

      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 USING TECHSTREAM (LUGGAGE COMPARTMENT DOOR OPENER SWITCH) 
    1. Using the Techstream, read the Data List.

      Back Door (Luggage closer motor assembly) 

      BACK DOOR (LUGGAGE CLOSER MOTOR ASSEMBLY) DATA LIST REFERENCE

      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 the 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 
    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.
        Fig 6: Identifying Distance Between Key And Rear Bumper
        G04951628Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • 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 

        RESULT CHART

        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 
    1. Diagnostic mode inspection (rear inside oscillator)
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Enter the following menus: 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.
        Fig 7: Identifying Distance Between Key And Rear Bumper
        G04951635Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        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 Antenna Connector And L15 ECU Connector Terminals
    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 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      L15-31 (CLG8) - R40-1 (CLG5) Always Below 1 Ω
      L15-32 (CG8B) - R40-2 (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 REMOVAL ).
    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 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      1 - 2 OFF Below 1 Ω
      1 - 2 ON 10 kΩ or higher
      Fig 9: Inspecting Luggage Compartment Door Opener Switch
      G04951704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      OK: Go to next step 

  18. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR OPENER SWITCH - LUGGAGE DOOR CLOSER MOTOR) 
    Fig 10: Identifying S43 ECU Connector And S38 Switch Connector Terminals
    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 

      RESISTANCE SPECIFICATION

      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 )

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