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Home >> Toyota >> 2011 >> Highlander Base, 3.5 K, AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Smart Key System (Keyless Entry) (Diagnostics & Symptom Tests) >> Smart Key System >> Symptom Tests >> All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate >> Procedure

All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate: Procedure

  1. READ VALUE ON TECHSTREAM (ENTRY CANCEL FUNCTION) 
    1. Connect Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the tester on.
    4. Enter the following menus:

      Body Electrical / Smart Key / Data List.

    5. Select Entry Cancel SW in the Data List and read the tester display.
      SMART KEY (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)):

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Entry Cancel SW Entry function cancel / ON or OFF Mode status is displayed -

      Result

      Result Proceed to
      Entry function is ON A
      Entry function is OFF B

    A → See step   7 

    B: Go to next step 

  2. CHECK WAVE ENVIRONMENT 
    1. Move the electrical key transmitter as described below and perform the operation inspection.

      HINT: 

      • When the electrical key transmitter is brought near the door outside handle or electrical key antenna, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
      • The transmitting waves of the wireless functions and entry functions are the same, but the wave logic is different. Therefore, it is possible that only the wireless functions or only the entry functions are affected by wave interference.
    2. Bring the electrical key transmitter near the driver door outside handle, and perform a front driver door entry lock and unlock operation check.
      Fig 1: Identifying Electrical Key Distance From Driver Door Outside Handle
      GTY198960Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      If the key is brought within 0.2 m (0.656 ft.) of the door outside handle, communication is not possible.

    3. Bring the electrical key transmitter near the front passenger door outside handle, and perform a front passenger door entry lock and unlock operation check.
      Fig 2: Identifying Electrical Key Distance From Passenger Door Outside Handle
      GTY198962Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      If the key is brought within 0.2 m (0.656 ft.) of the door outside handle, communication is not possible.

    4. Bring the electrical key transmitter near the outside electrical key oscillator (back door), and perform an entry back door open and lock functions check.
      Fig 3: Identifying Electrical Key Distance From Back Door Handle (Center Of Vehicle)
      GTY198956Courtesy 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: 

      If the inspection result is that the problem only occurs in certain locations or times of day, 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
      Some operation checks are normal A
      All operation checks fail B

    A → AFFECTED BY WAVE INTERFERENCE 

    B: Go to next step 

  3. PERFORM KEY DIAGNOSTIC MODE INSPECTION 
    1. Diagnostic mode inspection (driver door outside handle oscillator)
      Fig 4: Identifying Electrical Key Distance From Driver Door Outside Handle Oscillator
      GTY198959Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Connect Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the tester on.
      4. Enter the following menus:

        Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Driver Side.

      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
    2. Diagnostic mode inspection (front passenger door outside handle oscillator)
      Fig 5: Identifying Electrical Key Distance From Front Passenger Door Outside Handle Oscillator
      GTY198963Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Connect Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the tester on.
      4. Enter the following menus:

        Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Passenger Side.

      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
    3. Diagnostic mode inspection (indoor electrical key oscillator (front))
      Fig 6: Identifying Entry Ignition Operation'S Detection Area With Inspection Point
      GTY198964Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Connect Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the tester on.
      4. Enter the following menus:

        Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Front Room.

      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
    4. Diagnostic mode inspection (indoor electrical key oscillator (rear))
      Fig 7: Identifying Entry Ignition Operation's Detection Area (Center) With Inspection Point
      GTY198958Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Connect Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the tester on.
      4. Enter the following menus:

        Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Rear Room.

      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
    5. Diagnostic mode inspection (indoor electrical key oscillator (luggage compartment))
      Fig 8: Identifying Entry Ignition Operation's Detection Area (Rear) With Inspection Point
      GTY198957Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Connect Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the tester on.
      4. Enter the following menus:

        Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Back Door (inside).

      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.
    6. Diagnostic mode inspection (outside electrical key oscillator (back door))
      Fig 9: Identifying Electrical Key Distance From Outside Electrical Key Oscillator (Back Door)
      GTY198955Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Connect Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the tester on.
      4. Enter the following menus:

        Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode) / Overhead + Back Door.

      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

        Result

        Result Proceed to
        Some diagnostic mode inspections fail (door) A
        Some diagnostic mode inspections fail (interior) B
        Some diagnostic mode inspections fail (back door) C
        All diagnostic mode inspections are normal D
        All diagnostic mode inspections fail E

    A → See step   8 

    B → See step   9 

    C → See step   10 

    D → See step   11 

    E: Go to next step 

  4. REPLACE ELECTRICAL KEY TRANSMITTER 
    1. Replace the electrical key transmitter.

    NEXT: Go to next step 

  5. REGISTER ELECTRICAL KEY TRANSMITTER 
    1. Register the electrical key transmitter. Refer to REGISTRATION .

    NEXT: Go to next step 

  6. CHECK ELECTRICAL KEY TRANSMITTER (OPERATION) 
    1. Check that the entry functions operate normally.

      OK

      Entry functions operate normally.

    NG → See step   12 

    OK → END (ELECTRICAL KEY TRANSMITTER IS DEFECTIVE) 

  7. PERFORM CANCELLATION OF ENTRY KEY CANCEL FUNCTION. Refer to  CUSTOMIZE PARAMETERS  
  8. GO TO OTHER PROBLEM (PROCEED TO PROBLEM SYMPTOMS TABLE FLOWCHART FOR EACH DOOR). Refer to  PROBLEM SYMPTOMS TABLE  
  9. GO TO OTHER FLOWCHART. Refer to  Room Oscillator does not Recognize Key  
  10. GO TO OTHER FLOWCHART. Refer to  Back Door Entry Lock and Unlock Functions do not Operate  
  11. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL 
  12. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL