ENTRY AND START SYSTEM(for Entry Function) Charging Connector Entry Unlock Function does not Operate

DESCRIPTION

If only the charging port lid entry unlock function does not operate, the request code may not be being transmitted from the No. 2 electrical key antenna (extra antenna) or the charging cable connector lock/unlock function may be malfunctioning. If the entry functions for the doors operate properly, communication between the electrical key transmitter sub-assembly and electrical key and tire pressure monitoring system receiver assembly is normal. In this case, there may be a problem with request code transmission (communication between the certification ECU (smart key ECU assembly) and No. 2 electrical key antenna (extra antenna), or there may be wave interference.

WIRING DIAGRAM

A003P1WE07

CAUTION / NOTICE / HINT

Note


  • 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

  • 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(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.

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

    Click here

  • After repair, confirm that no DTCs are output.

PROCEDURE


  1. 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

  2. CHECK WAVE ENVIRONMENT


    1. A003MWRC03
      *A Type A
      *B Type B
      *1 Charging Connector Lock/Unlock Switch
      *2 Charging Port Lid
      *3 Lock Pin
      *a Approximately 0.3 m (0.984 ft.)

      Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the charging connector lock/unlock switch 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 No. 2 electrical key antenna (extra antenna).

      • When the electrical key transmitter sub-assembly is brought near the No. 2 electrical key antenna (extra antenna), 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

  3. 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. B006HQQC06
        *1 Charging Port Lid
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Check the No. 2 electrical key antenna (extra antenna):

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the charging port lid, 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

    GO TO PLUG-IN CHARGE CONTROL SYSTEM (Cannot Unlock Charging Connector) Click here

    A

  4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - NO. 2 ELECTRICAL KEY ANTENNA (EXTRA ANTENNA))


    1. Disconnect the N54 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the N81 No. 2 electrical key antenna (extra antenna) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N54-4 (CLGP) - N81-2 (ANTEP) Always Below 1 Ω
      N54-3 (CGPB) - N81-1 (CLGB) Always Below 1 Ω
      N54-4 (CLGP) or N81-2 (ANTEP) - Body ground Always 10 kΩ or higher
      N54-3 (CGPB) or N81-1 (CLGB) - Body ground Always 10 kΩ or higher

    4. Reconnect the N54 certification ECU (smart key ECU assembly) connector.

    5. Reconnect the N81 No. 2 electrical key antenna (extra antenna) connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO NO. 2 ELECTRICAL KEY ANTENNA (EXTRA ANTENNA))

    A003MTUC10
    *a

    Component with harness connected

    (Certification ECU (Smart Key ECU Assembly))

    		 *b Waveform 1

    1. Using an oscilloscope, check the waveform.

      OK
      Tester Connection Condition Tool Setting Specified Condition
      N54-4 (CLGP) - I1-18 (E)

      Procedure:


      1. Power switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Charging connector lock/unlock switch off → on

      		 2 V/DIV., 500 ms/DIV.

      Pulse generation

      (See waveform 1)
      N54-3 (CGPB) - I1-18 (E)

      Procedure:


      1. Power switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Charging connector lock/unlock switch off → on

      		 2 V/DIV., 500 ms/DIV.

      Pulse generation

      (See waveform 1)
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 2 ELECTRICAL KEY ANTENNA (EXTRA ANTENNA) Click here

    NG

  6. CHECK ENTRY LOCK OPERATION (CHARGING CONNECTOR LOCK/UNLOCK FUNCTION)


    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

    A

    END (CONNECTOR WAS NOT CONNECTED SECURELY)

    B

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)