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

DESCRIPTION

When the wireless functions can be used to lock and unlock the doors, the communication between the door control receiver and certification ECU (smart key ECU assembly) is normal. When the entry functions do not operate, one of the following may be the cause: 1) entry cancel function is set through customization; 2) malfunction in the entry and start system communication (electrical key transmitter sub-assembly and vehicle); or 3) electrical interference.

CAUTION / NOTICE / HINT

Note


  • 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 vehicle type under manual mode and enter the following menus: Body Electrical / Entry 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.

  • The entry and start system (for Entry Function) uses a LIN communication system and 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 system is functioning properly.

  • Before replacing the certification ECU (smart key ECU assembly), refer to the entry and start system (for Entry Function) Click here.

  • After repair, confirm DTC does not reoccur by performing the "DTC Output Confirmation Operation".

  • Check that there are no electrical key transmitter sub-assemblies in the vehicle.

  • When checking the entry lock operation multiple times, the lock operation may be limited to 2 consecutive operations depending on the settings. In order to perform the entry lock operation 3 or more times, an unlock operation must be performed once (any type of unlock operation is sufficient). However, only consecutive entry lock operations are limited. Using the wireless lock or other types of lock operations, it is possible to perform consecutive lock operations without this limitation.

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


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

      OK
      Door locks operate normally.

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM (PROCEED TO PROBLEM SYMPTOMS TABLE) 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.

      Entry & Start
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Auto Entry Cancel SW Entry cancel function setting / OFF or ON

      Mode status displayed

      OFF: Entry and start system not canceled

      ON: Entry and start system 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 key, etc.) be canceled, the setting can be changed through the customize function Click here.
      Result
      Result Proceed to
      Entry function cancel is OFF A
      Entry function cancel is ON B

    B

    PERFORM CANCELLATION OF ENTRY KEY CANCEL FUNCTION 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 assembly 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. A004K40E01
      Text in Illustration
      *1 Electrical Key Transmitter Sub-assembly
      *A for LHD
      *B for RHD
      *a Approximately 0.3 m (0.98 ft.)

      Bring the electrical key transmitter sub-assembly near the driver door outside handle assembly, and perform a front driver door entry lock and unlock operation check.

      Note

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

    3. A004IXGE01
      Text in Illustration
      *1 Electrical Key Transmitter Sub-assembly
      *A for LHD
      *B for RHD
      *a Approximately 0.3 m (0.98 ft.)

      Bring the electrical key transmitter sub-assembly near the front passenger side door outside handle assembly, and perform a front passenger side door entry lock and unlock operation check.

      Note

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

    4. A004JFDE01
      Text in Illustration
      *1 Electrical Key Transmitter Sub-assembly
      *a Approximately 0.3 m (0.98 ft.)

      Bring the electrical key transmitter sub-assembly near the electrical key antenna (outside luggage), and perform an entry luggage compartment door open function check.

      Note

      If the key is brought within 0.2 m (0.656 ft.) of the rear bumper, communication is not 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 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 the key diagnostic mode Click here.


      1. A004K40E01
        Text in Illustration
        *1 Electrical Key Transmitter Sub-assembly
        *A for LHD
        *B for RHD
        *a 0.7 to 1.0 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. A004IXGE01
        Text in Illustration
        *1 Electrical Key Transmitter Sub-assembly
        *A for LHD
        *B for RHD
        *a 0.7 to 1.0 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.

      3. A004HGPE02
        Text in Illustration
        *1 Electrical Key Transmitter Sub-assembly
        *a Inspection point

        Check the indoor electrical key oscillator (front floor):

        When the electrical key transmitter sub-assembly is at the inspection point, check that the wireless door lock buzzer sounds.

      4. A004JS0E02
        Text in Illustration
        *1 Electrical Key Transmitter Sub-assembly
        *a Inspection point

        Check the No. 2 indoor electrical key oscillator (rear floor):

        When the electrical key transmitter sub-assembly is at the inspection point, check that the wireless door lock buzzer sounds.

      5. A004JFDE01
        Text in Illustration
        *1 Electrical Key Transmitter Sub-assembly
        *a 0.7 to 1.0 m (2.30 to 3.28 ft.)

        Check the electrical key antenna (outside luggage):

        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), 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 (door) B
        Some diagnostic mode inspections fail (interior) C
        Some diagnostic mode inspections fail (luggage compartment door) D
        All diagnostic mode inspections are normal E

    B

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

    C

    GO TO OTHER PROBLEM (PROCEED TO ROOM OSCILLATOR DOES NOT RECOGNIZE KEY) Click here

    D

    GO TO OTHER PROBLEM (BACK DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE) Click here

    E

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A

  5. INSPECT ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY


    1. Check if there is another key available that is already registered to the vehicle.

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

    B

    CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY (OPERATION) Click here

    A

  6. REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY


    1. Replace the electrical key transmitter sub-assembly.

    2. Register the electrical key transmitter sub-assembly (Refer to the Service Bulletin).


    NEXT

  7. CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY (OPERATION)


    1. Check that the entry function operates normally Click here.

      OK
      Entry function operates normally.

    OK

    END (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)