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 door outside handle sub-assembly (for front passenger door) (lock/unlock request detection switch) 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 door outside handle sub-assembly (for front passenger door) (electrical key antenna)) or lock/unlock request detection switch signal, or there may be wave interference.

WIRING DIAGRAM

Figure 1. for LHD:

B004AQEE13

Figure 2. for RHD:

B004AQEE12

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the power 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. 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 the LIN communication system and CAN communication system. Inspect the communication function 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

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

  • After repair, confirm that no DTCs are output.

    Click here

  • 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 3. for LHD:

      B0049YUC01
      *a Approximately 0.3 m (0.984 ft.)

      Figure 4. for RHD:

      B004C7UC01
      *a Approximately 0.3 m (0.984 ft.)

      Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the door outside handle sub-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 door outside handle sub-assembly (for front passenger door).

      • When the electrical key transmitter sub-assembly is brought near the door outside handle sub-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.

      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 (SMART UNLOCK SWITCH)


    1. Turn the power 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 0.7 to 1 m (2.30 to 3.28 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. B004AQSC01
      *a Depression

      for LHD:

      Press the depression on the door outside handle sub-assembly (for front passenger door).

      Tech Tips

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


      Body Electrical > Front Right Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Smart Unlock Switch Front door RH unlock request detection switch signal ON or OFF

      ON: Depression on door outside handle RH pressed

      OFF: Depression on door outside handle RH not pressed

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

      Body Electrical > Front Right Door > Data List
      Tester Display
      Smart Unlock Switch
      OK
      The GTS display changes correctly in response to the operation of the door outside handle sub-assembly (for front passenger door).
    8. B004BHUC01
      *a Depression

      for RHD:

      Press the depression on the door outside handle sub-assembly (for front passenger door).

      Tech Tips

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


      Body Electrical > Front Left Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Smart Unlock Switch Front door LH unlock request detection switch signal ON or OFF

      ON: Depression on door outside handle LH pressed

      OFF: Depression on door outside handle LH not pressed

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

      Body Electrical > Front Left Door > Data List
      Tester Display
      Door Unlock SW
      OK
      The GTS display changes correctly in response to the operation of the door outside handle sub-assembly (for front passenger door).
      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEP 12 Click here

    OK

  5. READ VALUE USING GTS (SMART LOCK SWITCH)


    1. Turn the power 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 0.7 to 1 m (2.30 to 3.28 ft.) from the front passenger door.

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

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

    6. B004BN7C01
      *a Back End

      for LHD:

      Press the back end of the door outside handle sub-assembly (for front passenger door).

      Tech Tips

      When checking the operation of the lock request detection switch again, make sure to perform the procedure from step (a).


      Body Electrical > Front Right Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Smart Lock Switch Front door RH lock request detection switch signal ON or OFF

      ON: Back end of door outside handle RH pressed

      OFF: Back end of door outside handle RH not pressed

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

      Body Electrical > Front Right Door > Data List
      Tester Display
      Smart Lock Switch
      OK
      The GTS display changes correctly in response to the operation of the door outside handle sub-assembly (for front passenger door).
    7. B004BK8C01
      *a Back End

      for RHD:

      Press the back end of the door outside handle sub-assembly (for front passenger door).

      Tech Tips

      When checking the operation of the lock request detection switch again, make sure to perform the procedure from step (a).


      Body Electrical > Front Left Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Smart Lock Switch Front door LH lock request detection switch signal ON or OFF

      ON: Back end of door outside handle LH pressed

      OFF: Back end of door outside handle LH not pressed

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

      Body Electrical > Front Left Door > Data List
      Tester Display
      Smart Lock Switch
      OK
      The GTS display changes correctly in response to the operation of the door outside handle sub-assembly (for front passenger door).
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU (FOR FRONT PASSENGER DOOR) - DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR)) 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 5. for LHD:

        B0049YUC01
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Figure 6. for RHD:

        B004C7UC01
        *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 door outside handle sub-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) - DOOR OUTSIDE HANDLE SUB-ASSEMBLY (FOR FRONT PASSENGER DOOR))


    1. Disconnect the X23 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the V1*1 or W1*2 door outside handle sub-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
      X23-15 (CLG2) - V1-2 (ANT1) Always Below 1 Ω
      X23-14 (CG2B) - V1-1 (ANT2) Always Below 1 Ω
      X23-15 (CLG2) or V1-2 (ANT1) - Other terminals and body ground Always 10 kΩ or higher
      X23-14 (CG2B) or V1-1 (ANT2) - Other terminals and body ground Always 10 kΩ or higher
      for RHD:
      Tester Connection Condition Specified Condition
      X23-15 (CLG2) - W1-2 (ANT1) Always Below 1 Ω
      X23-14 (CG2B) - W1-1 (ANT2) Always Below 1 Ω
      X23-15 (CLG2) or W1-2 (ANT1) - Other terminals and body ground Always 10 kΩ or higher
      X23-14 (CG2B) or W1-1 (ANT2) - Other terminals and body ground Always 10 kΩ or higher

    4. Reconnect the X23 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. B004BBPC10
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Door Outside Handle Sub-assembly (for Front Passenger Door))
      *b Waveform 1

      Using an oscilloscope, check the waveform.

      OK
      for LHD:
      Tester Connection Condition Tool Setting Specified Condition
      V1-2 (ANT1) - V1-1 (ANT2)

      Procedure:


      1. Power 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
      W1-2 (ANT1) - W1-1 (ANT2)

      Procedure:


      1. Power 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/UNLOCK 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 DOOR OUTSIDE HANDLE SUB-ASSEMBLY (FOR FRONT PASSENGER DOOR)


    1. Replace the door outside handle sub-assembly (for front passenger door) with a new one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  11. CHECK ENTRY LOCK/UNLOCK 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 (DOOR OUTSIDE HANDLE SUB-ASSEMBLY (FOR FRONT PASSENGER DOOR) WAS DEFECTIVE)

    B

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

  12. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU (FOR FRONT PASSENGER DOOR) - DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR))


    • *1: for LHD

    • *2: for RHD


    1. Disconnect the R8*1 or S8*2 front multiplex network door ECU (for front passenger door) connector.

    2. Disconnect the V2*1 or W2*2 door outside handle sub-assembly (for front passenger door) connector.

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

      Standard Resistance
      for LHD:
      Tester Connection Condition Specified Condition
      R8-10 (PS1G) - V2-4 (LSWG) Always Below 1 Ω
      R8-10 (PS1G) - V2-5 (USWG) Always Below 1 Ω
      R8-10 (PS1G) or V2-4 (LSWG) - Other terminals and body ground Always 10 kΩ or higher
      R8-10 (PS1G) or V2-5 (USWG) - Other terminals and body ground Always 10 kΩ or higher
      for RHD:
      Tester Connection Condition Specified Condition
      S8-10 (PS1G) - W2-4 (LSWG) Always Below 1 Ω
      S8-10 (PS1G) - W2-5 (USWG) Always Below 1 Ω
      S8-10 (PS1G) or W2-4 (LSWG) - Other terminals and body ground Always 10 kΩ or higher
      S8-10 (PS1G) or W2-5 (USWG) - Other terminals and body ground Always 10 kΩ or higher

    4. Reconnect the V2*1 or W2*2 door outside handle sub-assembly (for front passenger door) connector.

    5. Reconnect the R8*1 or S8*2 front multiplex network door ECU (for front passenger door) connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU (FOR FRONT PASSENGER DOOR) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR