SMART ENTRY AND START SYSTEM(for Entry Function) Front Passenger Side Door Entry Lock and Unlock Functions do not Operate

DESCRIPTION

If the entry lock and unlock functions do not operate for the front passenger door only, the request code may not be being transmitted from the front passenger door or the front door outside handle assembly (for front passenger door) (touch sensor) may be malfunctioning. If the entry functions for other doors operate properly, communication between the electrical key transmitter sub-assembly and door control receiver is normal. In this case, there may be a problem with request code transmission (communication between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for front passenger door) (electrical key antenna)), or there may be wave interference.

WIRING DIAGRAM

B00714CE27

CAUTION / NOTICE / HINT

Note


  • 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.

  • The smart entry and start system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.

    Click here

  • Before replacing the certification ECU (smart key ECU assembly), refer to Service Bulletin.

  • After repair, confirm that no DTCs are output.

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

Tech Tips


  • If the front passenger side 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

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.

      Click here

      OK
      Door locks operate normally.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK

  2. CHECK FOR DTC


    1. Check for DTCs.


      Body Electrical > Entry&Start > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  3. CHECK WAVE ENVIRONMENT


    1. Figure 1. for LHD:

      B006XQLC01
      *a Approximately 0.3 m (0.984 ft.)

      Figure 2. for RHD:

      B006ZD7C05
      *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 an entry function check.

      Click here

      Tech Tips


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

      • When the electrical key transmitter sub-assembly is brought near the front door outside handle assembly (for front passenger door), 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.

      • When checking the operation of the entry lock function several times, it can be operated up to 2 times consecutively. To operate the function 3 times or more consecutively, the doors need to be unlocked once. However, this is only for the entry lock function, other door lock operations, such as a wireless door lock operation can be performed consecutively.

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

    B

    AFFECTED BY WAVE INTERFERENCE

    A

  4. READ VALUE USING GTS (P-DOOR TOUCH SENSOR)


    1. Turn the engine switch off.

    2. Open and close the front passenger door.

    3. With the electrical key transmitter sub-assembly outside of the vehicle, press the lock switch of the electrical key transmitter sub-assembly to lock all of the doors.

    4. Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.3 m (0.984 ft.) from the front passenger door.

    5. Check that the LED of the electrical key transmitter sub-assembly blinks.

    6. Read the Data List according to the display on the GTS.

    7. Figure 3. for LHD:

      B006XWZC03
      *a Unlock Sensor (Backside)

      Figure 4. for RHD:

      B006XUQC03
      *a Unlock Sensor (Backside)

      Touch the unlock sensor on the backside of the front door outside handle assembly (for front passenger door).

      Tech Tips

      When checking the operation of the unlock sensor again, make sure to perform the procedure from step (a).


      Body Electrical > Entry&Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      P-Door Touch Sensor Front passenger door touch sensor (unlock sensor) OFF or ON

      OFF: Front passenger door touch sensor (unlock sensor) not touched

      ON: Front passenger door touch sensor (unlock sensor) touched

      • Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily).

      • Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.

      Body Electrical > Entry&Start > Data List
      Tester Display
      P-Door Touch Sensor
      OK
      The GTS display changes correctly in response to the operation of the front door outside handle assembly (for front passenger door).
      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEP 7 Click here

    OK

  5. READ VALUE USING GTS (P-DOOR TRIGGER SWITCH)


    1. Turn the engine switch off.

    2. Open and close the front passenger door.

    3. Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.3 m (0.984 ft.) from the front passenger door.

    4. Read the Data List according to the display on the GTS.

    5. Figure 5. for LHD:

      B006YWNC03
      *a Lock Sensor

      Figure 6. for RHD:

      B006XBAC02
      *a Lock Sensor

      Touch the lock sensor of the front door outside handle assembly (for driver door).

      Tech Tips


      • If the door does not lock even when touching the lock sensor, touch it with your palm.

      • When checking the operation of the lock sensor again, make sure to perform the procedure from step (a).


      Body Electrical > Entry&Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      P-Door Trigger Switch Front passenger door touch sensor (lock sensor) OFF or ON

      OFF: Front passenger door touch sensor (lock sensor) not touched

      ON: Front passenger door touch sensor (lock sensor) touched

      • Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily).

      • Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate.

      Body Electrical > Entry&Start > Data List
      Tester Display
      P-Door Trigger Switch

      Tech Tips

      When checking the operation of the entry lock function several times, it can be operated up to 2 times consecutively. To operate the function 3 times or more consecutively, the doors need to be unlocked once. However, this is only for the entry lock function, other door lock operations, such as a wireless door lock operation can be performed consecutively.

      OK
      The GTS display changes correctly in response to the operation of the front door outside handle assembly (for front passenger door).
      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEP 7 Click here

    OK

  6. CHECK KEY DIAGNOSTIC MODE


    1. Check the following antenna in key diagnostic mode.


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

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


      1. Figure 7. for LHD:

        B006XQLC05
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Figure 8. for RHD:

        B006ZD7C01
        *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 buzzer sounds.

        Tech Tips


        • 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.

      Result
      Result Proceed to
      Wireless buzzer does not sound A
      Wireless buzzer sounds B

    B

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A

  7. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR))


    1. Disconnect the R8 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the N11*1 or O10*2 front door outside handle assembly (for front passenger door) connector.


      • *1: for LHD

      • *2: for RHD

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for LHD:
      Tester Connection Condition Specified Condition
      R8-15 (CLG2) - N11-6 (ANT1) Always Below 1 Ω
      R8-14 (CG2B) - N11-4 (ANT2) Always Below 1 Ω
      R8-15 (CLG2) or N11-6 (ANT1) - Other terminals and body ground Always 10 kΩ or higher
      R8-14 (CG2B) or N11-4 (ANT2) - Other terminals and body ground Always 10 kΩ or higher
      for RHD:
      Tester Connection Condition Specified Condition
      R8-15 (CLG2) - O10-6 (ANT1) Always Below 1 Ω
      R8-14 (CG2B) - O10-4 (ANT2) Always Below 1 Ω
      R8-15 (CLG2) or O10-6 (ANT1) - Other terminals and body ground Always 10 kΩ or higher
      R8-14 (CG2B) or O10-4 (ANT2) - Other terminals and body ground Always 10 kΩ or higher

    4. Reconnect the R8 certification ECU (smart key ECU assembly) connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO FRONT PASSENGER DOOR ELECTRICAL KEY ANTENNA)


    1. B006XYIC17
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Front Door Outside Handle Assembly (for Front Passenger Door))
      *b Waveform 1

      Using an oscilloscope, check the waveform.

      OK
      for LHD:
      Tester Connection Condition Tool Setting Specified Condition
      N11-6 (ANT1) - N11-4 (ANT2)

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought outside detection area*)

      		 5 V/DIV., 100 ms/DIV.

      Pulse generation

      (See waveform 1)
      for RHD:
      Tester Connection Condition Tool Setting Specified Condition
      O10-6 (ANT1) - O10-4 (ANT2)

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought outside detection area*)

      		 5 V/DIV., 100 ms/DIV.

      Pulse generation

      (See waveform 1)

      *: For details about the entry function detection area, refer to Operation Check.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

  9. CHECK ENTRY LOCK OPERATION


    1. Connect all connectors and check that the function operates normally.

      Click here

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

    B

    END (CONNECTOR WAS NOT CONNECTED SECURELY)

    A

  10. REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR)


    1. Replace the front door outside handle assembly (for front passenger door) with a new one or the front door outside handle assembly (for driver door) if it is functioning properly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  11. CHECK ENTRY LOCK OPERATION


    1. Check that the function operates normally.

      Click here

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

    A

    END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) WAS DEFECTIVE)

    B

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)