POWER TRUNK LID SYSTEM Power Trunk Lid does not Operate

DESCRIPTION

The main body ECU (driver side junction block) continuously monitors the luggage compartment door opening cancel switch. When the luggage compartment door opening cancel switch is OFF, a luggage door opening switch signal is sent to the luggage closer motor from the main body ECU (driver side junction block) via CAN communication. This activates the power trunk opener operation, which opens the luggage compartment door. When the luggage compartment door closer switch is ON, the luggage closer motor activates the power trunk closer operation. When the key is held, and the luggage electrical key switch is ON or the key's luggage compartment door opener switch is pressed, the luggage closer motor activates the power trunk lid opener operation.

WIRING DIAGRAM

A01GYAPE04

INSPECTION PROCEDURE

Note

Before replacing the television camera (luggage electrical key switch), refer to the parking assist monitor system initialization Click here.

Tech Tips

Since the power trunk lid system has functions that use CAN communication system, first confirm that there is no malfunction in the communication system by inspecting the CAN communication functions in accordance with the "How to Proceed with Troubleshooting" procedures. Then, conduct the following inspection procedure.

PROCEDURE


  1. CHECK LUGGAGE CLOSER FUNCTION


    1. Set the luggage compartment door so that it is ajar, and check that the closer motor operates normally.

      Result:
      Result Proceed to
      Closer motor operates normally A
      Closer motor does not operate normally B

    B

    Go to OTHER PROBLEM Click here

    A

  2. READ VALUE USING GTS (LUGGAGE DOOR OPENING SWITCH, LUGGAGE COMPARTMENT DOOR OPENING CANCEL SWITCH)


    1. Check the Data List for proper functioning of the switches Click here.

      Main Body:
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Trunk/BDoor Open SW Luggage door opening switch signal / ON or OFF

      ON: Luggage door opening switch is ON

      OFF: Luggage door opening switch is OFF

      		 -
      Trunk Main SW Luggage compartment door opening cancel switch signal / ON or OFF

      ON: Luggage compartment door opening cancel switch is ON

      OFF: Luggage compartment door opening cancel switch is OFF

      		 -
      Result:
      Result Proceed to
      Luggage door opening switch signal malfunction A
      Luggage compartment door opening cancel switch signal malfunction B
      Data List normal C

    B

    INSPECT LUGGAGE COMPARTMENT DOOR OPENING CANCEL SWITCH Click here

    C

    READ VALUE USING GTS (LUGGAGE CLOSER MOTOR) Click here

    A

  3. INSPECT LUGGAGE DOOR OPENING SWITCH

    A01GXD9E01

    1. Remove the luggage door opening switch Click here.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      3 (L) - 4 (B) Luggage door opening switch ON Below 1 Ω
      Luggage door opening switch OFF 10 kΩ or higher

    NG

    REPLACE LUGGAGE DOOR OPENING SWITCH Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (LUGGAGE DOOR OPENING SWITCH - MAIN BODY ECU AND BODY GROUND)

    A01GXR0E06

    1. Disconnect the L13 ECU connector.

    2. Disconnect the L3 switch connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      L13-26 (TSW) - L3-4 (B) Always Below 1 Ω
      L3-3 (L) - Body ground Always Below 1 Ω
      L3-4 (B) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)

  5. INSPECT LUGGAGE COMPARTMENT DOOR OPENING CANCEL SWITCH

    A01GZGXE09

    1. Remove the luggage compartment door opening cancel switch Click here.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      1 - 2 Cancel switch ON Below 1 Ω
      Cancel switch OFF 10 kΩ or higher

    NG

    REPLACE LUGGAGE COMPARTMENT DOOR OPENER CANCEL SWITCH Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR OPENING CANCEL SWITCH - MAIN BODY ECU AND BODY GROUND)

    A01GY7BE12

    1. Disconnect the L11 ECU connector.

    2. Disconnect the L83 switch connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      L11-3 (TMSW) - L83-2 Always Below 1 Ω
      L83-1 - Body ground Always Below 1 Ω
      L83-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)

  7. READ VALUE USING GTS (LUGGAGE CLOSER MOTOR)


    1. Check the Data List for proper functioning of the switches Click here.

      Back Door:
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      PBD Close SW Luggage compartment door closer switch signal / ON or OFF

      ON: Luggage compartment door closer switch is ON

      OFF: Luggage compartment door closer switch is OFF

      		 -
      Back Door Handle SW Luggage electrical key switch signal / ON or OFF

      ON: Luggage electrical key switch is ON

      OFF: Luggage electrical key switch is OFF

      		 -
      Result:
      Result Proceed to
      Luggage compartment door closer switch signal malfunction A
      Luggage electrical key switch signal malfunction B
      Data List normal C

    B

    INSPECT LUGGAGE ELECTRICAL KEY SWITCH Click here

    C

    CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) Click here

    A

  8. INSPECT LUGGAGE COMPARTMENT DOOR CLOSER SWITCH

    A01GXNXE02

    1. Remove the luggage compartment door closer switch Click here.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      3 - 4 Door closer switch ON Below 1 Ω
      Door closer switch OFF 10 kΩ or higher

    NG

    REPLACE LUGGAGE COMPARTMENT DOOR CLOSER SWITCH Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (DOOR CLOSER SWITCH - LUGGAGE CLOSER MOTOR AND BODY GROUND)

    A01GX2QE05

    1. Disconnect the S43 motor connector.

    2. Disconnect the S40 switch connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      S43-4 (LDDN) - S40-4 Always Below 1 Ω
      S40-3 - Body ground Always Below 1 Ω
      S40-4 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    END (MAIN BODY ECU [DRIVER SIDE JUNCTION BLOCK] IS DEFECTIVE)

  10. INSPECT LUGGAGE ELECTRICAL KEY SWITCH

    A01GX9WE06

    1. Remove the luggage electrical key switch Click here.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      5 - 10 Luggage electrical key switch OFF 10 kΩ or higher
      Luggage electrical key switch ON Below 1 Ω

    NG

    REPLACE LUGGAGE ELECTRICAL KEY SWITCH Click here

    OK

  11. CHECK HARNESS AND CONNECTOR (LUGGAGE ELECTRICAL KEY SWITCH - LUGGAGE CLOSER MOTOR AND BODY GROUND)

    A01GY8VE09

    1. Disconnect the S43 motor connector.

    2. Disconnect the S101 switch connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      S43-19 (LPSW) - S101-5 Always Below 1 Ω
      S101-10 - Body ground Always Below 1 Ω
      S101-5 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY Click here

  12. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)


    1. Temporarily replace the main body ECU (driver side junction block) with a new or normally functioning one.

    2. Check that the power trunk lid system is normal Click here.

      OK
      Power trunk lid operation is normal.

    NG

    REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY Click here

    OK

    END (MAIN BODY ECU [DRIVER SIDE JUNCTION BLOCK] IS DEFECTIVE)