ENTRY AND START SYSTEM (for Entry Function) Key Luggage Compartment Lock-in Prevention Function does not Operate

DESCRIPTION

If the entry luggage compartment lock-in prevention function does not operate, either of the following may be the cause: 1) communication between the indoor electrical key oscillator (luggage compartment) and the certification ECU (Smart key ECU assembly) cannot be performed; or 2) a malfunction in the certification ECU (smart key ECU assembly).

WIRING DIAGRAM

A0161TBE02

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK ENTRY AND START SYSTEM (ENTRY LUGGAGE COMPARTMENT OPEN FUNCTION)


    1. Check that the entry luggage compartment open function operates.

      Result
      Result Proceed to
      Entry luggage compartment door open function does not operate A
      Entry luggage compartment door open function operates B

    A

    GO TO OTHER PROBLEM Click here

    B

  2. CHECK WAVE ENVIRONMENT


    1. Bring the electrical key transmitter near the indoor electrical key oscillator (luggage compartment), and check that the entry luggage compartment lock-in prevention function operates.

      Note

      If the key is brought within 0.2 m (0.656 ft.) of the indoor electrical key oscillator (luggage compartment), communication is not possible.

      Tech Tips


      • When the electrical key transmitter is brought near the indoor electrical key oscillator (luggage compartment), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the operation check is normal, 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
      Result Proceed to
      Operation check is normal A
      Operation check fails B

    A

    AFFECTED BY WAVE INTERFERENCE

    B

  3. PERFORM KEY DIAGNOSTIC MODE INSPECTION


    1. A0162T7E01

      Diagnostic mode inspection (indoor electrical key oscillator (luggage compartment))


      1. Connect the intelligent tester to the DLC3.

      2. Turn the engine switch on (IG).

      3. Turn the intelligent tester on.

      4. Enter the following menus: Body / Entry & Start / Key Communication Check / Overhead + Luggage (inside)

      5. When the electrical key transmitter is held at the same height as the rear bumper upper surface and aligned with the center of the rear of the vehicle, check that the wireless door lock buzzer sounds.

        Tech Tips

        If the buzzer sounds, it can be determined that the luggage compartment interior transmitter is operating normally.

        OK
        Wireless door lock buzzer sounds

    NG

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - INDOOR ELECTRICAL KEY OSCILLATOR) Click here

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

  4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - INDOOR ELECTRICAL KEY OSCILLATOR)


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

    2. A015YJHE09

      Disconnect the indoor electrical key oscillator (luggage compartment) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P33-16 (CG7B) - Q48-3 (CLGB) Always Below 1 Ω
      P33-15 (CLG7) - Q48-1 (CLG6) Always Below 1 Ω
      P33-16 (CG7B) - Body ground Always 10 kΩ or higher
      P33-15 (CLG7) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE INDOOR ELECTRICAL KEY OSCILLATOR (LUGGAGE COMPARTMENT)


    1. Replace the indoor electrical key oscillator (luggage compartment) Click here.


    NEXT

  6. CHECK INDOOR ELECTRICAL KEY OSCILLATOR (OPERATION)


    1. Check that the entry functions operate normally Click here.

      OK
      Entry function operates normally.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (INDOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)