ENTRY AND START SYSTEM(for Entry Function) All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate

DESCRIPTION

If the entry lock and unlock functions do not operate, the entry cancel function may be set through the customize function, there may be communication problems between the electrical key transmitter sub-assembly and vehicle, or there may be wave interference.

CAUTION / NOTICE / HINT

Note


  • The entry and start system (for Entry Function) uses a multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting.

    Click here

    Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.

  • When using the GTS with the vehicle engine switch off, connect the GTS to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN).

    While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

  • Using key diagnostic mode, check that there is no other electrical key transmitter sub-assembly in the cabin.

    Click here

  • Before replacing the certification ECU (smart key ECU assembly) or electrical key transmitter sub-assembly, refer to the entry and start system (for Entry Function) precaution.

    Click here

  • After repair, confirm that no DTCs are output by performing the "DTC Output Confirmation Operation".

Tech Tips


  • If all door entry lock and unlock functions do not operate, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly).

  • If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether the malfunction was caused by wave interference.


Body Electrical > Entry&Start > Utility
Tester Display
Operation History
Radio Wave Interference
Parameter Name Cause of Problem and Countermeasure
Lock / Key RF Signal Interference When entry lock operation was performed, the electrical key transmitter sub-assembly could not be confirmed due to wave interference.
Unlock / Key RF Signal Interference When entry unlock operation was performed, the electrical key transmitter sub-assembly could not be confirmed due to wave interference.

PROCEDURE


  1. CHECK POWER DOOR LOCK CONTROL SYSTEM


    1. When the door control switch on the power window master switch on the driver door is operated, check that the doors unlock and lock according to the switch operation.

      Click here

      OK
      Door locks operate normally
      Result
      Proceed to
      OK
      NG

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK

  2. READ VALUE USING GTS (AUTO ENTRY CANCEL SW)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Entry&Start / Data List.

    5. According to the display on the GTS, read the Data List.


      Body Electrical > Entry&Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Auto Entry Cancel SW Entry cancel function setting OFF or ON

      Mode status displayed

      ON: Entry and start system canceled

      OFF: Entry and start system not canceled

      		 The default setting for the entry cancel function is OFF. If the customer requests that the entry and start system functions (locking and unlocking the doors while carrying the electrical key transmitter sub-assembly, etc.) be canceled, the setting can be changed through the customize function.*

      *: Click here

      Tech Tips

      If the Data List cannot be read, check the value by performing manual operation of the customize function.

      Click here

      Result
      Result Proceed to
      Entry door lock function cancel is OFF A
      Entry door lock function cancel is ON B

    B

    PERFORM CUSTOMIZE SETTING Click here

    A

  3. CHECK WAVE ENVIRONMENT


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

      Click here

      Tech Tips


      • When the electrical key transmitter sub-assembly is brought near the front 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 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. B00691SC01
        *a Approximately 0.3 m (0.984 ft.)

        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 driver door entry lock and unlock operation check.

        Note

        If the electrical key transmitter sub-assembly is brought within 0.2 m (0.656 ft.) of the door handle, communication may not be possible.

      2. B0068NYC01
        *a Approximately 0.3 m (0.984 ft.)

        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 passenger door entry lock and unlock operation check.

        Note

        If the electrical key transmitter sub-assembly is brought within 0.2 m (0.656 ft.) of the door handle, communication may not be possible.

        Tech Tips


        • 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.

        • If wave interference seems to be the likely cause of the problem, ask the customer if the problem occurs in specific locations.

        • Move the vehicle to a different location, perform the following procedure and check if the symptoms can be reproduced.

        • If a tool for checking electric 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.

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

    B

    AFFECTED BY WAVE INTERFERENCE

    C

    GO TO OTHER PROBLEM (PROCEED TO PROBLEM SYMPTOMS TABLE FOR EACH DOOR) Click here

    A

  4. CHECK KEY DIAGNOSTIC MODE


    1. Check the following antennas in key diagnostic mode.

      Click here

    2. Select either channel 1 or channel 2 and perform the key diagnostic mode inspection for each channel.

      Tech Tips

      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.


      Body Electrical > Entry&Start > Utility
      Tester Display
      Communication Check(Key Diag Mode)

      1. B0068NYC02
        *A for LHD
        *a 0.7 to 1 m (2.30 to 3.28 ft.)
        B00691SC02
        *A for RHD
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        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 (for Driver Door), check that the wireless door lock buzzer sounds.

      2. B00691SC02
        *A for LHD
        *a 0.7 to 1 m (2.30 to 3.28 ft.)
        B0068NYC02
        *A for RHD
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        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 (for Front Passenger Door), check that the wireless door lock buzzer sounds.

        OK
        Wireless door lock buzzer sounds.
      Result
      Result Proceed to
      All diagnostic mode inspections fail A
      Some diagnostic mode inspections fail B
      All diagnostic mode inspections are normal C

    B

    GO TO OTHER PROBLEM Click here

    C

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A

  5. INSPECT 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

    B

    GO TO STEP 7 Click here

    A

  6. ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY)


    1. Register a new electrical key transmitter sub-assembly.

      Tech Tips

      Refer to the Service Bulletin.

      Result
      Proceed to
      NEXT

    NEXT

  7. CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY)


    1. Check the entry lock/unlock operation.

      Click here

      OK
      Entry lock function operates normally.
      Result
      Proceed to
      OK
      NG

    OK

    END (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)