POWER TRUNK LID SYSTEM Power Trunk Lid does not Operate

DESCRIPTION

The main body ECU (multiplex network body ECU) continuously monitors the luggage door opening cancel switch assembly. When the luggage door opening cancel switch assembly is OFF, a luggage compartment door opening switch signal is sent to the luggage closer motor assembly from the main body ECU (multiplex network body ECU) via CAN communication. This actuates the power trunk opener operation, which opens the luggage compartment door. When the door control switch is on, the luggage closer motor assembly actuates the power trunk closer operation. When the electrical key transmitter sub-assembly is held or all doors are unlocked and the electrical key transmitter sub-assembly is not held, and the luggage electrical key switch is on or the luggage door open switch on electrical key transmitter sub-assembly switch is pressed, the luggage closer motor assembly actuates the power trunk lid opener operation.

WIRING DIAGRAM

Refer to the "System Diagram".

Click here

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • If the main body ECU (multiplex network body ECU) or certification ECU (smart key ECU assembly) is replaced, refer to Service Bulletin.

Tech Tips

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

PROCEDURE


  1. CHECK POWER TRUNK LID SYSTEM


    1. Check the power trunk lid system.

      Click here

      Result
      Result Proceed to
      There is a malfunction when only the luggage door opening cancel switch assembly or luggage compartment door opening switch is operated. A
      There is a malfunction when only the door control switch is operated. B
      There is a malfunction when only the luggage electrical key switch is operated (electrical key transmitter sub-assembly is held) (w/ Entry Function). C
      There is a malfunction when only the luggage electrical key switch is operated (all doors are unlocked and the electrical key transmitter sub-assembly is not held). D
      There is a malfunction when only the electrical key transmitter sub-assembly is operated. E

    B

    READ VALUE USING GTS (PBD CLOSE SW) Click here

    C

    READ VALUE USING GTS (TR/B-DOOR UNLOCK SW) Click here

    D

    READ VALUE USING GTS Click here

    E

    CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Click here

    A

  2. READ VALUE USING GTS (TRUNK MAIN 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 / Main Body / Data List.

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


      Body Electrical > Main Body > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Trunk Main SW Luggage door opening cancel switch assembly signal / ON or OFF ON or OFF

      ON: Luggage door opening cancel switch assembly is on

      OFF: Luggage door opening cancel switch assembly is off

      		 When this item is abnormal, there is a problem with the luggage door opening cancel switch assembly or related parts.

      Body Electrical > Main Body > Data List
      Tester Display
      Trunk Main SW
      OK
      On GTS screen, each item changes between ON and OFF as shown in above chart.
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY Click here

    OK

  3. READ VALUE USING GTS (TRUNK/BDOOR OPEN 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 / Main Body / Data List.

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


      Body Electrical > Main Body > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Trunk/BDoor Open SW Luggage compartment door opening switch assembly signal / ON or OFF ON or OFF

      ON: Luggage compartment door opening switch assembly is on

      OFF: Luggage compartment door opening switch assembly is off

      		 When this item is abnormal, there is a problem with the luggage compartment door opening switch assembly or related parts.

      Body Electrical > Main Body > Data List
      Tester Display
      Trunk/BDoor Open SW
      OK
      On GTS screen, each item changes between ON and OFF as shown in above chart.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

  4. INSPECT LUGGAGE COMPARTMENT DOOR OPENING SWITCH ASSEMBLY


    1. Remove the luggage compartment door opening switch assembly.

      Click here

    2. Insect the luggage compartment door opening switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE LUGGAGE COMPARTMENT DOOR OPENING SWITCH ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR OPENING SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)


    1. Disconnect the K2 luggage compartment door opening switch assembly connector.

    2. Disconnect the K12 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K2-3 (B) - K12-8 (TSW) Always Below 1 Ω
      K2-4 (L) - Body ground Always Below 1 Ω
      K2-3 (B) or K12-8 (TSW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. INSPECT LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY


    1. Remove the luggage door opening cancel switch assembly.

      Click here

    2. Inspect the luggage door opening cancel switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)


    1. Disconnect the K68 luggage door opening cancel switch assembly connector.

    2. Disconnect the K12 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K68-2 (B) - K12-5 (TMSW) Always Below 1 Ω
      K68-1 (L) - Body ground Always Below 1 Ω
      K68-2 (B) or K12-5 (TMSW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. READ VALUE USING GTS (PBD CLOSE 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 / Back Door / Data List.

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


      Body Electrical > Back Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      PBD Close SW Door control switch signal ON or OFF

      ON: Door control switch in on

      OFF: Door control switch is off

      		 When this item is abnormal, there is a problem with the door control switch or related parts.

      Body Electrical > Back Door > Data List
      Tester Display
      PBD Close SW
      OK
      On GTS screen, each item changes between ON and OFF as shown in above chart.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY Click here

    NG

  9. INSPECT DOOR CONTROL SWITCH


    1. Remove the door control switch.

      Click here

    2. Inspect the door control switch.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE DOOR CONTROL SWITCH Click here

    OK

  10. CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH - LUGGAGE CLOSER MOTOR ASSEMBLY AND BODY GROUND)


    1. Disconnect the X2 door control switch connector.

    2. Disconnect the U28 luggage closer motor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X2-4 (CLS) - U28-4 (LDDN) Always Below 1 Ω
      X2-3 (E) - Body ground Always Below 1 Ω
      X2-4 (CLS) or U28-4 (LDDN) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  11. 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 electrical key switch assembly (open switch) signal ON or OFF

      ON: Luggage electrical key switch (open switch) on

      OFF: Luggage electrical key switch assembly (open switch) off

      		 When this item is abnormal, there is a problem with the luggage electrical key switch of the luggage door closer assembly or related parts.

      Body Electrical > Entry&Start > Data List
      Tester Display
      Tr/B-Door Unlock SW
      OK
      On GTS screen, each item changes between ON and OFF as shown in above chart.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

  12. INSPECT LUGGAGE ELECTRICAL KEY SWITCH


    1. Remove the luggage electrical key switch.

      Click here

    2. Inspect the luggage electrical key switch.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE LUGGAGE ELECTRICAL KEY SWITCH Click here

    OK

  13. CHECK HARNESS AND CONNECTOR (LUGGAGE ELECTRICAL KEY SWITCH - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) AND BODY GROUND)


    1. Disconnect the X8 luggage electrical key switch connector.

    2. Disconnect the T1*1 or U1*2 certification ECU (smart key ECU assembly) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      X8-2 (UL) - T1-27 (TSW5) Always Below 1 Ω
      X8-1 (E) - Body ground Always Below 1 Ω
      X8-2 (UL) or T1-27 (TSW5) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Tester Connection Specified Condition
      X8-2 (UL) - U1-27 (TSW5) Always Below 1 Ω
      X8-1 (E) - Body ground Always Below 1 Ω
      X8-2 (UL) or U1-27 (TSW5) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  14. READ VALUE USING GTS


    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 / Data List.

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


      Body Electrical > Main Body > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Trunk Link with Door Lock Luggage compartment door lock function / ON or OFF ON or OFF Customized value displayed -

      Body Electrical > Main Body > Data List
      Tester Display
      Trunk Link with Door Lock
      Result
      Result Proceed to
      Luggage compartment door lock function is ON. A
      Luggage compartment door lock function is OFF. B

    A

    GO TO LIGHTING SYSTEM (DOOR UNLOCK DETECTION SWITCH CIRCUIT) Click here

    B

    PERFORM CUSTOMIZE SETTING (PROCEED TO CUSTOMIZE PARAMETERS) Click here

  15. CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY


    1. Check if there are any other registered electrical key transmitter sub-assemblies.

      Result
      Result Proceed to
      There are no other registered electrical key transmitter sub-assemblies. A
      There is another registered electrical key transmitter sub-assemblies. B

    B

    GO TO STEP 17 Click here

    A

  16. ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY)


    1. Register a new electrical key transmitter sub-assembly.

      Result
      Proceed to
      NEXT

    NEXT

  17. CHECK POWER TRUNK LID SYSTEM


    1. Using another registered electrical key transmitter sub-assembly, check if a power trunk lid system open/close operation can be performed normally.

      OK
      The operation can be performed normally.
      Result
      Proceed to
      OK
      NG

    OK

    END (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)