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

DESCRIPTION

If the entry lock and unlock functions do not operate for the driver door only, the request code may not be being transmitted from the driver door or the front door outside handle assembly (for driver 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 driver door] [driver door electrical key antenna]), or there may be wave interference.

Tech Tips

If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether or not the malfunction was caused by wave interference.

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. If the cause of the malfunction has not been stored but the car has been moved and an entry lock operation has been successfully performed, the possibility of wave interference is high.
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. If the cause of the malfunction has not been stored but the car has been moved and an entry unlock operation has been successfully performed, the possibility of wave interference is high.

WIRING DIAGRAM

A01VB4CE11

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. 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), 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".

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

      Result
      Proceed to
      Door locks operate normally
      Door locks do not operate

    Door locks do not operate

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    Door locks operate normally

  2. CHECK WAVE ENVIRONMENT


    1. A01V7U6C01
      *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 an entry function check (for LHD)

      Click here

      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.

    2. A01V92RC01
      *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 an entry function check (for RHD)

      Click here

      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.

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

    Entry function operates normally

    AFFECTED BY WAVE INTERFERENCE

    Entry function does not operate normally

  3. CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY - CERTIFICATION ECU AND BODY GROUND)


    1. Disconnect the J6*1 or I6*2 front door outside handle assembly (for driver door) connector.


      • *1: for LHD

      • *2: for RHD

    2. Disconnect the G84 certification ECU (smart key ECU assembly) connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      J6-3 (ANT2) - G84-13 (CG1B) Always Below 1 Ω
      J6-6 (ANT1) - G84-12 (CLG1) Always Below 1 Ω
      J6-5 (B) - G84-19 (POS1) Always Below 1 Ω
      J6-2 (GND) - Body ground Always Below 1 Ω
      J6-3 (ANT2) or G84-13 (CG1B) - Body ground Always 10 kΩ or higher
      J6-6 (ANT1) or J84-12 (CLG1) - Body ground Always 10 kΩ or higher
      J6-5 (B) or G84-19 (POS1) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      I6-3 (ANT2) - G84-13 (CG1B) Always Below 1 Ω
      I6-6 (ANT1) - G84-12 (CLG1) Always Below 1 Ω
      I6-5 (B) - G84-19 (POS1) Always Below 1 Ω
      I6-2 (GND) - Body ground Always Below 1 Ω
      I6-3 (ANT2) or G84-13 (CG1B) - Body ground Always 10 kΩ or higher
      I6-6 (ANT1) or G84-12 (CLG1) - Body ground Always 10 kΩ or higher
      I6-5 (B) or G84-19 (POS1) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO DRIVER DOOR ELECTRICAL KEY ANTENNA)


    1. A01VAUYC26
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Front Door Outside Handle Assembly [for Driver Door])
      *b Waveform

      Connect the G84 certification ECU (smart key ECU assembly) connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      for LHD
      Tester Connection Switch Condition Specified Condition
      J6-5 (B) - J6-2 (GND) Engine switch off → on (IG) 9 to 12 V → Below 2 V
      for RHD
      Tester Connection Switch Condition Specified Condition
      I6-5 (B) - I6-2 (GND) Engine switch off → on (IG) 9 to 12 V → Below 2 V

    3. Using an oscilloscope, check the waveform.

      OK
      Tester Connection Switch Condition Tool Setting Specified Condition

      • J6-3 (ANT2) - J6-6 (ANT1)*1

      • I6-3 (ANT2) - I6-6 (ANT1)*2

        Procedure:

      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*3

      6. All doors locked through wireless operation

      		 2 V/DIV., 500 ms/DIV.

      Pulse generation

      (See waveform)

      • *1: for LHD

      • *2: for RHD

      • *3: For details about the areas that are inside 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

  5. REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR)


    1. Temporarily replace the front door outside handle assembly (for driver door) with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) (OPERATION)


    1. Check that the entry functions operate normally.

      Click here

      Result
      Proceed to
      Entry functions operate normally
      Entry functions does not operate

    Entry functions operate normally

    END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY [FOR DRIVER DOOR] WAS DEFECTIVE)

    Entry functions does not operate

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)