ENTRY AND START SYSTEM(for Entry Function) Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment

DTC Code DTC Name
Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment

DESCRIPTION

If the luggage compartment door entry unlock function does not operate, the request code may not be transmitted from the luggage compartment door. 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 electrical key antenna (outside luggage)), a luggage compartment door outer switch malfunction or wave interference.

WIRING DIAGRAM

B331644E13

CAUTION / NOTICE / HINT

Note:

  • The entry and start system (for Entry Function) uses the CAN communication system and LIN communication system. First inspect the communication systems 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 vehicle 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 the 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.

  • 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 entry and start system (for Entry Function) Precaution.

    Click here

  • After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

PROCEDURE

  1. READ VALUE USING GTS (TRUNK OPEN MODE)

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Entry&Start / Data List.

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

      Body Electrical > Entry&Start > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Trunk Open Mode

      Luggage door opening operation

      ON or OFF

      Customization status displayed

      • Displays whether the luggage door opening switch assembly is on or off.

      • Use this Data List item to help determine if there is a switch malfunction when the luggage compartment door open function does not operate.

      Body Electrical > Entry&Start > Data List

      Tester Display

      Trunk Open Mode

    Result

    Result

    Proceed to

    Trunk open mode is ON

    A

    Trunk open mode is OFF

    B
    B

    PERFORM CUSTOMIZE SETTING (Proceed to Customize Parameters)

    Click hereClick here

    A

  2. READ VALUE USING GTS (TR/B-DOOR UNLOCK SW)

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Entry&Start / Data List.

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

      Body Electrical > Entry&Start > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Tr/B-Door Unlock SW

      Luggage door opening switch assembly

      ON or OFF

      ON: Luggage door opening switch assembly pushed

      OFF: Luggage door opening switch assembly not pushed

      -

      Body Electrical > Entry&Start > Data List

      Tester Display

      Tr/B-Door Unlock SW

      OK

      The GTS display changes correctly in response to the operation of the luggage door opening switch assembly.

    Result

    Proceed to

    OK

    NG
    NG

    INSPECT LUGGAGE DOOR OPENING SWITCH ASSEMBLYClick here

    OK

  3. PERFORM ACTIVE TEST USING GTS (TRUNK AND BACK-DOOR OPEN)

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Active Test.

    5. According to the display on the GTS, perform the Active Test.

      Body Electrical > Main Body > Active Test

      Tester Display

      Measurement Item

      Control Range

      Diagnostic Note

      Trunk and Back-Door Open

      Operate luggage compartment door lock motor

      ON or OFF

      -

      Body Electrical > Main Body > Active Test

      Tester Display

      Trunk and Back-Door Open

      OK

      Luggage compartment door lock motor operates.

    Result

    Proceed to

    OK

    NG
    NG

    INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLYClick here

    OK

  4. CHECK WAVE ENVIRONMENT

    1. B349355C01

      *a

      Approximately 0.3 m (0.984 ft.)

      Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the electrical key antenna (outside luggage) and perform an entry luggage compartment open function check.

      Tip:

      • Communication may not be possible if the electrical key transmitter sub-assembly is brought within 0.2 m (0.656 ft.) of the rear bumper.

      • When the electrical key transmitter sub-assembly is brought near the electrical key antenna (outside luggage), 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.

      OK

      Entry functions operate normally.

    Result

    Proceed to

    OK

    NG
    OK

    AFFECTED BY WAVE INTERFERENCE

    NG

  5. CHECK KEY DIAGNOSTIC MODE

    1. Check the following antenna in key diagnostic mode.

      Click hereClick here

      Body Electrical > Entry&Start > Utility

      Tester Display

      Communication Check(Key Diag Mode)
    2. B349355C01

      *a

      0.7 to 1.0 m (2.30 to 3.28 ft.)

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

      1. When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the electrical key antenna (outside luggage), check that the wireless buzzer sounds.

        Tip:

        • Select either channel 1 or channel 2 and inspect using key diagnostic mode 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.

        OK

        Wireless door lock buzzer sounds.

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

  6. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ELECTRICAL KEY ANTENNA)

    1. Disconnect the E34 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the L17 electrical key antenna (outside luggage) connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      E34-1 (CG8B) - L17-2 (CLGB)

      Always

      Below 1 Ω

      E34-2 (CLG8) - L17-1 (ANTE8)

      Always

      Below 1 Ω

      E34-1 (CG8B) or L17-2 (CLGB) - Body ground

      Always

      10 kΩ or higher

      E34-2 (CLG8) or L17-1 (ANTE8) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. INSPECT ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE)

    1. B226391C44

      *a

      Component without harness connected

      (Electrical Key Antenna (Outside Luggage))

      Remove the electrical key antenna (outside luggage).

      Click here

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      1 (ANTE8) - 2 (CLGB)

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    REPLACE ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE)

    Click here

  8. INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY

    1. B297551C27

      *a

      Component without harness connected

      (Luggage Compartment Door Lock Assembly)

      *b

      Close (Lock)

      *c

      Open (Unlock)

      Remove the luggage compartment door lock assembly.

      Click here

    2. Check the operation of the door lock motor.

      1. Move the door lock to the closed (locked) position.

      2. Apply battery voltage to the door lock motor and check the operation of the door lock motor.

        OK

        Measurement Condition

        Specified Condition

        Battery positive (+) → 1 (ACT+)

        Battery negative (-) → 2 (ACT-)

        Luggage compartment door lock motor open (unlock) operation
    3. B297551C28

      *a

      Component without harness connected

      (Luggage Compartment Door Lock Assembly)

      *b

      Close (Lock)

      *c

      Open (Unlock)

      Check the luggage door courtesy light switch.

      1. Move the door lock to the closed (locked) position.

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

        Standard Resistance

        Measurement Condition

        Condition

        Specified Condition

        2 (ACT-) - 3 (D+)

        Closed (Locked)

        10 kΩ or higher

        2 (ACT-) - 3 (D+)

        Open (Unlocked)

        Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY

    Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

    1. Door lock motor:

      1. Disconnect the 3E instrument panel junction block assembly connector.

      2. Disconnect the L74 luggage compartment door lock assembly connector.

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

        Standard Resistance

        Tester Connection

        Condition

        Specified Condition

        3E-39 (TR+) - L74-1 (ACT+)

        Always

        Below 1 Ω

        3E-39 (TR+) or L74-1 (ACT+) - Body ground

        Always

        10 kΩ or higher

        L74-2 (ACT-) - Body ground

        Always

        Below 1 Ω

    2. Luggage door courtesy light switch:

      1. Disconnect the 3E instrument panel junction block assembly connector.

      2. Disconnect the L74 luggage compartment door lock assembly connector.

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

        Standard Resistance

        Tester Connection

        Condition

        Specified Condition

        3E-34 (BCTY) - L74-3 (D+)

        Always

        Below 1 Ω

        3E-34 (BCTY) or L74-3 (D+) - Body ground

        Always

        10 kΩ or higher

        L74-2 (ACT-) - Body ground

        Always

        Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    1. Temporarily replace the instrument panel junction block assembly with a new one.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  11. CHECK OPERATION

    1. Check that the luggage compartment door entry unlock functions operate normally.

      Click hereClick here

      OK

      Luggage compartment door entry unlock functions operate normally.

    Result

    Proceed to

    OK

    NG
    OK

    END (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    Click here

  12. INSPECT LUGGAGE DOOR OPENING SWITCH ASSEMBLY

    1. Remove the luggage door opening switch assembly.

      Click here

    2. B142645C36

      *a

      Component without harness connected

      (Luggage Door Opening Switch Assembly)

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      2 (E) - 3 (UL)

      Luggage door opening switch assembly not pushed

      10 kΩ or higher

      2 (E) - 3 (UL)

      Luggage door opening switch assembly pushed

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE LUGGAGE DOOR OPENING SWITCH ASSEMBLY

    Click here

    OK

  13. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - LUGGAGE DOOR OPENING SWITCH ASSEMBLY)

    1. Disconnect the E34 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the L81 luggage door opening switch assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      E34-27 (TSW5) - L81-3 (UL)

      Always

      Below 1 Ω

      E34-27 (TSW5) or L81-3 (UL) - Body ground

      Always

      10 kΩ or higher

      L81-2 (E) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR