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Home >> Lexus >> 2013 >> IS F >> 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 (for Entry Function) >> 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. READ VALUE USING TECHSTREAM (LUGGAGE COMPARTMENT DOOR OPEN MODE) 
    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 / Data List.
    5. Read the Data List according to the display on the Techstream.
      SMART ACCESS (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Trunk Open Mode Luggage compartment door open mode / ON or OFF Customization status displayed -

      Result

      Result Proceed to
      Entry luggage compartment door open mode is OFF A
      Entry luggage compartment door open mode is ON B

    A → See step   14 

    B: Go to next step 

  2. CHECK LUGGAGE COMPARTMENT DOOR OPENER SYSTEM (OPEN OPERATION) 
    1. When the luggage compartment door opener inner switch is operated, check that the luggage compartment door opens. Refer to OPERATION CHECK [08/2012 - ] .

      OK

      Luggage compartment door opens.

    NG → See step   11 

    OK: Go to next step 

  3. READ VALUE USING TECHSTREAM (LUGGAGE COMPARTMENT DOOR OPENER SWITCH) 
    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 / Body No. 3 / Data List.
    5. Read the Data List according to the display on the Techstream.
      BODY NO. 3 (MAIN BODY ECU LH (COWL SIDE JUNCTION BLOCK LH))

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

      OK

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

    NG → See step   9 

    OK: Go to next step 

  4. CHECK WAVE ENVIRONMENT 
    1. Bring the electrical key transmitter near the outside electrical key oscillator (luggage compartment), and perform an entry luggage compartment open function check.
      GTY115551Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      If the key is brought within 0.2 m (0.656 ft) of the rear bumper, communication is not possible.

      HINT: 

      • When the electrical key transmitter is brought near the outside electrical key oscillator (luggage compartment), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
      • If 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.

      OK

      Entry functions operate normally.

    NG → See step   5 

    OK → AFFECTED BY WAVE INTERFERENCE 

  5. PERFORM KEY DIAGNOSTIC MODE INSPECTION 
    1. Diagnostic mode inspection (outside electrical key oscillator (luggage compartment))
      GTY115550Courtesy 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 / Utility / Communication Check (Key Diag Mode) / Overhead + Luggage (outside).
      5. When the electrical key transmitter is held at the same height as the rear bumper upper surface aligning it 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   13 

  6. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - OUTSIDE ELECTRICAL KEY OSCILLATOR) 
    1. Disconnect the certification ECU (smart key ECU assembly) connector.
    2. Disconnect the outside electrical key oscillator (luggage compartment) connector.
      GTY125537Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      P33-32 (CG8B) - P32-2 (CLGB) Always Below 1 Ω
      P33-31 (CLG8) - P32-1 (CLG5) Always Below 1 Ω
      P33-32 (CG8B) - Body ground Always 10 kΩ or higher
      P33-31 (CLG8) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  7. REPLACE OUTSIDE ELECTRICAL KEY OSCILLATOR (LUGGAGE COMPARTMENT) 
    1. Replace the outside electrical key oscillator (luggage compartment). Refer to REMOVAL [08/2012 - ] .

    NEXT: Go to next step 

  8. CHECK OUTSIDE ELECTRICAL KEY OSCILLATOR (LUGGAGE COMPARTMENT OPERATION) 
    1. Check that the entry functions operate normally. Refer to OPERATION CHECK [08/2012 - ] .

      OK

      Entry functions operate normally.

    NG → See step   13 

    OK → END (OUTSIDE ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  9. INSPECT LUGGAGE COMPARTMENT DOOR OPENER OUTER SWITCH 
    1. Remove the luggage compartment door opener outer switch. Refer to REMOVAL [08/2012 - ] .
    2. Measure the resistance according to the value(s) in the table below.
      GTY128714Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      1 (E) - 2 (UL) Luggage compartment open outer switch not pushed (OFF) 10 KΩ or higher
      1 (E) - 2 (UL) Luggage compartment open outer switch pushed (ON) Below 1 Ω

    NG → See step   12 

    OK: Go to next step 

  10. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU LH - OPENER SWITCH) 
    1. Disconnect the main body ECU LH (cowl side junction block LH) connector.
      GTY114885Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q3-13 (LPSW) - Q45-2 (UL) Always Below 1 Ω
      Q45-1 (E) - Body ground Always Below 1 Ω
      Q3-13 (LPSW) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → REPLACE MAIN BODY ECU LH (COWL SIDE JUNCTION BLOCK LH) 

  11. GO TO LUGGAGE COMPARTMENT DOOR OPENER SYSTEM (Luggage Compartment Door Opener does not Operate). Refer to  Luggage Compartment Door Opener does not Operate 
  12. REPLACE LUGGAGE COMPARTMENT DOOR OPENER OUTER SWITCH. Refer to  REMOVAL [08/2012 - ] 
  13. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [08/2012 - ] 
  14. PERFORM CUSTOMIZE SETTING. Refer to  CUSTOMIZE PARAMETERS [08/2012 - ]