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

DESCRIPTION

When the wireless operation can be used to lock and unlock the doors, communication between the door control receiver and certification ECU (smart key ECU assembly) is normal. 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 the CAN communication system and LIN communication system. First inspect the communication systems by following How to Proceed with Troubleshooting. Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.

    Click here

  • When using the GTS with the engine switch off, connect the GTS to the DLC3 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 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.

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

  • Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output.

    Click here

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

    Click here

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

PROCEDURE


  1. CHECK FOR DTC


    1. Check for DTCs.


      Body Electrical > Entry&Start > Trouble Codes
      OK
      DTCs are not output.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO DIAGNOSTIC TROUBLE CODE CHART 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. Read the Data List according to the display on the GTS.


      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.*


      Body Electrical > Entry&Start > Data List
      Tester Display
      Auto Entry Cancel SW

      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.

      Tech Tips


      • When the electrical key transmitter sub-assembly is brought near the front door outside handle assembly (for driver door) or electrical key antenna, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • The transmitted waves 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. A01LV25C01
        *A for LHD
        *B for RHD
        *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 (for driver door) and perform a driver door entry lock and unlock operation check.

        Note

        Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.657 ft.) of the door handle.

      2. A01LZMQC01
        *A for LHD
        *B for RHD
        *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 (for front passenger door) and perform a front passenger door entry lock and unlock operation check.

        Note

        Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.657 ft.) of the door handle.

      3. A01LZL4C01
        *A except Sedan
        *B for Sedan
        *a Approximately 0.3 m (0.984 ft.)

        Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the electrical key antenna (outside luggage) and perform a back door open*1 or luggage door open*2 function check.


        • *1: except Sedan

        • *2: for Sedan

        Note

        Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.657 ft.) of the rear bumper.

        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 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.

      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 antenna in key diagnostic mode.

      Click here

    2. Select either channel 1 or channel 2 and perform 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.


      1. A01LV25C01
        *A for LHD
        *B 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.


        Body Electrical > Entry&Start > Utility
        Tester Display
        Communication Check(Key Diag Mode)
      2. A01LZMQC01
        *A for LHD
        *B 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.


        Body Electrical > Entry&Start > Utility
        Tester Display
        Communication Check(Key Diag Mode)
      3. A01LZL4C01
        *A except Sedan
        *B for Sedan
        *a 0.7 to 1 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.


        Body Electrical > Entry&Start > Utility
        Tester Display
        Communication Check(Key Diag Mode)
      4. A01LXT8C01
        *a Inspection Point

        Check the NO. 3 indoor electrical key antenna (front floor):

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


        Body Electrical > Entry&Start > Utility
        Tester Display
        Communication Check(Key Diag Mode)
      5. A01LW8WC01
        *A except Sedan
        *B for Sedan
        *a Inspection Point

        Check the NO. 2 indoor electrical key antenna (rear floor):

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


        Body Electrical > Entry&Start > Utility
        Tester Display
        Communication Check(Key Diag Mode)
      6. A01LWAUC01
        *A except Sedan
        *B for Sedan
        *a Inspection Point

        Check the NO. 1 indoor electrical key antenna (inside luggage):

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


        Body Electrical > Entry&Start > Utility
        Tester Display
        Communication Check(Key Diag Mode)
        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 (outside luggage) D
      All diagnostic mode inspections are normal E

    B

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

    C

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

    D

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

    E

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A

  5. 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

    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 Service Bulletin.

      Result
      Proceed to
      NEXT

    NEXT

  7. CHECK ENTRY DOOR LOCK OPERATION


    1. Check the operation of the entry lock function.

      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)