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Home >> Lexus >> 2013 >> LS 460 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System (Keyless Entry) (Diagnostics & Symptom Tests) >> Smart Access System With Push-Button Start >> Symptom Tests >> Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment >> Procedure

Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment: 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 Proceed to
      Entry function can be performed A
      Entry function cannot be performed B

    B → See step   19 

    A: Go to next step 

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

      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 → See step   20 

    C → See step   11 

    D → See step   21 

    A: Go to next step 

  3. READ VALUE USING TECHSTREAM (LUGGAGE PUSH SWITCH) 
    1. Using the Techstream, read the Data List.
      BODY NO. 4 (REAR ROOM JUNCTION BLOCK ECU)

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

      OK

      On the screen, item changes between ON and OFF according to above chart.

    NG → See 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.
      GTY397234Courtesy 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

      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)
      GTY397052Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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.

        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 → See step   6 

    OK → See step   23 

  6. CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY ANTENNA - CERTIFICATION ECU) 
    GTY406923Courtesy 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

      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) or R40-1 (CLG5) - Body ground Always 10 kΩ or higher
      L15-32 (CG8B) or R40-2 (CLGB) - 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. Refer to REMOVAL [09/2012 - ] .
    2. Check that the entry luggage compartment open function operates normally.

      OK

      Operates normally

    NG → See step   8 

    OK → END (ELECTRICAL KEY ANTENNA IS DEFECTIVE) 

  8. CHECK REAR JUNCTION BLOCK ECU (OPERATION) 
    1. Replace the rear 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 → See step   24 

    OK → END (REAR JUNCTION BLOCK ECU IS DEFECTIVE) 

  9. INSPECT LUGGAGE ELECTRICAL KEY SWITCH 
    GTY408673Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Switch Condition Specified Condition
      5 (UL) - 10 (E) OFF Below 1 Ω
      5 (UL) - 10 (E) ON 10 kΩ or higher

    NG → See step   22 

    OK: Go to next step 

  10. CHECK HARNESS AND CONNECTOR (LUGGAGE ELECTRICAL KEY SWITCH - REAR JUNCTION BLOCK ECU) 
    GTY411918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S73 luggage electrical key switch connector.
    2. Disconnect the S63 rear junction block ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      S73-10 (E) - Body ground Always Below 1 Ω
      S73-5 (UL) - S63-6 (LPSW) Always Below 1 Ω
      S73-5 (UL) or S63-6 (LPSW) - 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 (BACK DOOR HANDLE SW) 
    1. Using the Techstream, read the Data List.
      BACK DOOR (LUGGAGE CLOSER MOTOR ASSEMBLY)

      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Back Door Handle SW Luggage electrical key switch / ON or OFF ON: Luggage electrical key switch is pushed
      OFF: Luggage electrical key 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 electrical key 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 electrical key switch information.

      OK

      On the screen, item changes between ON and OFF according to above chart.

    NG → See 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.
      GTY397234Courtesy 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

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

    B → See step   27 

    A: Go to next step 

  13. KEY DIAGNOSTIC MODE 
    1. Diagnostic mode inspection (rear inside oscillator)
      GTY397052Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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.

        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 → See step   14 

    OK → See step   28 

  14. CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY ANTENNA - CERTIFICATION ECU) 
    GTY406923Courtesy 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

      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) or R40-1 (CLG5) - Body ground Always 10 kΩ or higher
      L15-32 (CG8B) or R40-2 (CLGB) - 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. Refer to REMOVAL [09/2012 - ] .
    2. Check that the entry luggage compartment open function operates normally.

      OK

      Operates normally

    NG → See 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. Refer to REMOVAL [09/2012 - ] .
    2. Check that the entry luggage compartment open function operates normally.

      OK

      Operates normally

    NG → See step   29 

    OK → END (LUGGAGE CLOSER MOTOR IS DEFECTIVE) 

  17. INSPECT LUGGAGE ELECTRICAL KEY SWITCH 
    GTY408673Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Switch Condition Specified Condition
      5 (UL) - 10 (E) OFF 10 kΩ or higher
      5 (UL) - 10 (E) ON Below 1 Ω

    NG → See step   25 

    OK: Go to next step 

  18. CHECK HARNESS AND CONNECTOR (LUGGAGE ELECTRICAL KEY SWITCH - LUGGAGE CLOSER MOTOR) 
    GTY408456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S73 luggage electrical key switch connector.
    2. Disconnect the S43 luggage closer motor connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      S73-10 (E) - Body ground Always Below 1 Ω
      S73-5 (UL) - S43-19 (LPSW) Always Below 1 Ω
      S73-5 (UL) or S43-19 (LPSW) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   26 

  19. GO TO DTC OF OTHER COMPONENTS (PROCEED TO PROBLEM SYMPTOM FLOWCHART FOR EACH DOOR). Refer to  PROBLEM SYMPTOMS TABLE [09/2012 - ]  
  20. GO TO LUGGAGE COMPARTMENT DOOR OPENER SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2012 - ] 
  21. GO TO POWER TRUNK LID SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2012 - ] 
  22. REPLACE LUGGAGE ELECTRICAL KEY SWITCH. Refer to  REMOVAL [09/2012 - ] 
  23. REPLACE CERTIFICATION ECU. Refer to  REMOVAL [09/2012 - ] 
  24. REPLACE CERTIFICATION ECU. Refer to  REMOVAL [09/2012 - ] 
  25. REPLACE LUGGAGE ELECTRICAL KEY SWITCH. Refer to  REMOVAL [09/2012 - ] 
  26. REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY. Refer to  COMPONENTS [09/2012 - ] 
  27. REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY. Refer to  COMPONENTS [09/2012 - ] 
  28. REPLACE CERTIFICATION ECU. Refer to  REMOVAL [09/2012 - ] 
  29. REPLACE CERTIFICATION ECU. Refer to  REMOVAL [09/2012 - ]