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All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate [08/2019 - ]: Procedure

  1. CHECK POWER DOOR LOCK CONTROL SYSTEM 
    1. When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation.

      Refer to OPERATION CHECK [08/2019 - ]

      OK

      Door locks operate normally.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ] 

    Result: 

    OK 

    See step  2

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

      HINT: 

      • When the electrical key transmitter sub-assembly is brought near the front door outside handle assembly LH or electrical key antenna (outside luggage compartment), 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 problem only occurs in certain locations or at certain 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.
      • There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement.
      • If a tool for checking radio waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference.
      • The transmitting wave of the wireless function and entry function are the same, but the wave logic is different. As a result, it is possible that only the wireless function or only the entry function is affected by wave interference.
      1. Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the front door outside handle assembly LH and perform a driver door entry lock and unlock operation check.

        HINT: 

        Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the door handle.

        GTY957206Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 0.3 m (0.984 ft.)
      2. Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the front door outside handle assembly RH and perform a front passenger door entry lock and unlock operation check.
        GTY956449Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 0.3 m (0.984 ft.)

        HINT: 

        Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the door handle.

      3. Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the electrical key antenna (outside luggage compartment) and perform an entry back door unlock function check.

        HINT: 

        Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the rear bumper.

        GTY956904Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 0.3 m (0.984 ft.)

      Result

      Result Proceed to
      All operation checks fail A
      All operation checks are normal B
      Some operation checks are normal C

    Result: 

    B 

    AFFECTED BY WAVE INTERFERENCE 

    Result: 

    C 

    GO TO OTHER PROBLEM. Refer to  PROBLEM SYMPTOMS TABLE [08/2019 - ] 

    Result: 

    A 

    See step  3

  3. CHECK KEY DIAGNOSTIC MODE 
    1. Enter the following menus: Body Electrical / Smart Access / Utility / Communication Check(Key Diag Mode).
    2. Check the following antennas in key diagnostic mode.
    3. Select either channel 1 or channel 2 and perform key diagnostic mode inspection for each channel.
      1. Check the electrical key antenna (for Driver Door):

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly LH, check that the buzzer sounds.

        GTY957206Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        HINT: 

        • Select either channel 1 or channel 2 and perform the key diagnostic mode inspection for each channel.
        • If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference.
      2. Check the electrical key antenna (for Front Passenger Door):

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly RH, check that the buzzer sounds.

        GTY956449Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        HINT: 

        • Select either channel 1 or channel 2 and perform the key diagnostic mode inspection for each channel.
        • If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference.
      3. Check the electrical key antenna (outside luggage compartment):
        GTY956904Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the electrical key antenna (outside luggage compartment), check that the buzzer sounds.

        HINT: 

        • Select either channel 1 or channel 2 and perform the key diagnostic mode inspection for each channel.
        • If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference.

        OK

        Buzzer sounds.

      Result

      Result Proceed to
      All diagnostic mode inspections fail A
      Some diagnostic mode inspections fail (door) B
      Some diagnostic mode inspections fail (outside luggage compartment) C
      All diagnostic mode inspections are normal D

    Result: 

    B 

    GO TO OTHER PROBLEM. Refer to  PROBLEM SYMPTOMS TABLE [08/2019 - ] 

    Result: 

    C 

    GO TO OTHER PROBLEM. Refer to  Back Door Entry Lock and Unlock Functions do not Operate [08/2019 - ]  

    Result: 

    D 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [08/2019 - 08/2021]  , or refer to  REMOVAL [08/2021 - ] 

    Result: 

    A 

    See step  4

  4. CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY 
    1. Check if there is another electrical key transmitter sub-assembly available that is already registered to the vehicle.

      Result

      Result Proceed to
      Another registered electrical key transmitter sub-assembly is not available A
      Another registered electrical key transmitter sub-assembly is available B

    Result: 

    B 

    See step  6

    Result: 

    A 

    See step  5

  5. ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY) 
    1. Register a new electrical key transmitter sub-assembly.

      HINT: 

      Refer to the Registration.

      Refer to REGISTRATION [08/2019 - 08/2021] , or refer to REGISTRATION [08/2021 - 08/2022] , or refer to REGISTRATION [08/2022 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  6

  6. CHECK ENTRY LOCK OPERATION 
    1. Using another registered electrical key transmitter sub-assembly, check that the entry function operates normally.

      Refer to OPERATION CHECK [08/2019 - 08/2022] , or refer to OPERATION CHECK [08/2022 - ]

      Result

      Result Proceed to
      Entry function operates normally A
      Entry function does not operate normally B

    Result: 

    A 

    END (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY WAS DEFECTIVE) 

    Result: 

    B 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [08/2019 - 08/2021]  , or refer to  REMOVAL [08/2021 - ] 

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