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POWER TRUNK LID SYSTEM Power Trunk Lid does not Operate

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DTC Code DTC Name
  Power Trunk Lid does not Operate
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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 door opening switch assembly 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, and the luggage electrical key switch is on or the luggage door open switch on the electrical key transmitter sub-assembly switch is pressed, the luggage closer motor assembly actuates the power trunk lid opener operation.

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WIRING DIAGRAM

Refer to the "System Diagram" (Click here).

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CAUTION / NOTICE / HINT

Note:

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

  • The power trunk lid system uses the CAN communication system. First, confirm that there is no malfunction in the CAN communication system. Refer to the How to Proceed with Troubleshooting procedure (See page )

  • If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.

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PROCEDURE


  1. Click here

    CHECK POWER TRUNK LID SYSTEM


    1. Check the power trunk lid system (Click here).

      Table 1. Result
      Result Proceed to
      There is a malfunction when the luggage door opening cancel switch assembly or luggage door opening switch assembly is operated. A
      There is a malfunction when the door control switch is operated. B
      There is a malfunction when the luggage electrical key switch or electrical key transmitter sub-assembly is operated. C

  2. Click here

    READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power 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.

      Table 2. Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Trunk Main SW Luggage door opening cancel switch assembly signal / ON or OFF

      ON: Luggage door opening cancel switch assembly is on

      OFF: Luggage door opening cancel switch assembly is off

      		 -
      OK
      On the GTS screen, each item changes between ON and OFF as shown in above chart.

  3. Click here

    READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power 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.

      Table 3. Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Trunk/BDoor Open SW Luggage door opening switch assembly signal / ON or OFF

      ON: Luggage door opening switch assembly is on

      OFF: Luggage door opening switch assembly is off

      		 -
      OK
      On the GTS screen, each item changes between ON and OFF as shown in above chart.

  4. Click here

    INSPECT LUGGAGE DOOR OPENING SWITCH ASSEMBLY


    1. Remove the luggage door opening switch assembly (Click here).

    2. Inspect the luggage door opening switch assembly (Click here).


  5. Click here

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


    1. Disconnect the H69 luggage door opening cancel switch assembly connector.

    2. Disconnect the H9 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
      H69-6 (B) - H9-5 (TSW) Always Below 1 Ω
      H69-3 (L) - Body ground Always Below 1 Ω
      H69-6 (B) or H9-5 (TSW) - Body ground Always 10 kΩ or higher

    • OK

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

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. Click here

    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).


  7. Click here

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


    1. Disconnect the H74 luggage door opening cancel switch assembly connector.

    2. Disconnect the H9 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
      H74-2 (B) - H9-11 (TMSW) Always Below 1 Ω
      H74-1 (L) - Body ground Always Below 1 Ω
      H74-2 (B) or H9-11 (TMSW) - Body ground Always 10 kΩ or higher

    • OK

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

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. Click here

    READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power 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.

      Table 4. Back Door
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      PBD Close SW Door control switch signal / ON or OFF

      ON: Door control switch is on

      OFF: Door control switch is off

      		 When this item is abnormal, there is a problem with the door control switch or related parts.
      OK
      On the GTS screen, each item changes between ON and OFF as shown in above chart.

  9. Click here

    INSPECT DOOR CONTROL SWITCH


    1. Remove the door control switch (Click here).

    2. Inspect the door control switch (Click here).


  10. Click here

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


    1. Disconnect the U15 door control switch connector.

    2. Disconnect the U16 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
      U15-4 (CLS) - U16-4 (LDDN) Always Below 1 Ω
      U15- 3 (E) - Body ground Always Below 1 Ω
      U15-4 (CLS) or U16-4 (LDDN) - Body ground Always 10 kΩ or higher

    • OK

      REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY (Click here)

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR