LUGGAGE COMPARTMENT DOOR CLOSER SYSTEM Luggage Compartment Door Closer does not Operate

DESCRIPTION

The luggage door closer assembly is controlled by the luggage closer motor assembly. The closer motor is activated according to the switch signals in the luggage door closer assembly.

WIRING DIAGRAM

Refer to the "System Diagram" Click here.

CAUTION / NOTICE / HINT

Note


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

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

PROCEDURE


  1. OPERATION INSPECTION


    1. Confirm the problem symptoms Click here.

      Result
      Result Proceed to
      The luggage compartment door does not operate properly. A
      The luggage compartment door does not operate properly when the luggage compartment door lock cylinder assembly is operated. B
      The luggage compartment door does not operate properly when the luggage electrical key switch is operated. C

    B

    READ VALUE USING GTS Click here

    C

    GO TO SMART ENTRY AND START SYSTEM (for Entry Function)

    A

  2. 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.

      Back Door
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Pawl Position Switch Luggage door closer assembly pawl switch signal / ON or OFF

      ON: Pawl switch of luggage door closer assembly on

      OFF: Pawl switch of luggage door closer assembly off (Luggage compartment door closed)

      • See "Luggage Door Closer Operation Timing Chart" Click here.

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

    OK

    REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY Click here

    NG

    CHECK HARNESS AND CONNECTOR (LUGGAGE CLOSER MOTOR ASSEMBLY - AUXILIARY BATTERY AND BODY GROUND) Click here

  3. 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.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Trunk Lock/Unlock SW Luggage compartment door lock cylinder assembly switch signal / ON or OFF

      ON: Luggage compartment door lock cylinder assembly turned (Luggage compartment door opened)

      OFF: Luggage compartment door lock cylinder assembly not turned (Luggage compartment door closed)

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

    OK

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

    NG

    INSPECT LUGGAGE COMPARTMENT DOOR LOCK CYLINDER ASSEMBLY Click here

  4. CHECK HARNESS AND CONNECTOR (LUGGAGE CLOSER MOTOR ASSEMBLY - AUXILIARY BATTERY AND BODY GROUND)


    1. A00094ME01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Luggage Closer Motor Assembly)

      Disconnect the U16 luggage closer motor assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      U16-10 (ECUB) - Body ground Always 11 to 14 V
      U16-12 (B) - Body ground Always 11 to 14 V
      U16-8 (IG) - Body ground Power switch on (IG) 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      U16-11 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT LUGGAGE DOOR CLOSER ASSEMBLY


    1. A0006Z1E08
      Text in Illustration
      *a

      Component without harness connected:

      (Luggage Door Closer Assembly)
      *b Fully latched
      *c Half latched
      *d Fully open

      Remove the luggage door closer assembly Click here.

    2. Set the luggage door closer assembly to the half-latch position.

    3. Apply auxiliary battery voltage to the luggage door closer assembly connector and check the closer operation.

      OK
      Measurement Condition Specified Condition

      Auxiliary battery positive (+) → Terminal 8 (M+)

      Auxiliary battery negative (-) → Terminal 1 (M-)

      		 Luggage door closer assembly half latched → fully latched

    4. Set the luggage door closer assembly to the fully latched position.

    5. Apply auxiliary battery voltage to the luggage door closer assembly connector and check the open operation.

      OK
      Measurement Condition Specified Condition

      Auxiliary battery positive (+) → Terminal 1 (M-)

      Auxiliary battery negative (-) → Terminal 8 (M+)

      		 Luggage door closer assembly fully latched → fully open

    NG

    REPLACE LUGGAGE DOOR CLOSER ASSEMBLY Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (LUGGAGE CLOSER MOTOR ASSEMBLY - LUGGAGE DOOR CLOSER ASSEMBLY)


    1. Disconnect the U16 luggage closer motor assembly connector.

    2. Disconnect the U14 luggage door closer assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      U16-2 (LCM+) - U14-8 (M+) Always Below 1 Ω
      U16-1 (LCM-) - U14-1 (M-) Always Below 1 Ω
      U16-20 (PAWL) - U14-11 (CLS) Always Below 1 Ω
      U16-16 (CSG) - U14-4 (CPSE) Always Below 1 Ω
      U16-17 (CS2) - U14-9 (CPS2) Always Below 1 Ω
      U16-18 (CS1) - U14-2 (CPS1) Always Below 1 Ω
      U16-19 (CSV) - U14-3 (CPS+) Always Below 1 Ω
      U16-7 (HAF) - U14-6 (FSW) Always Below 1 Ω
      U16-21 (SWG) - U14-7 (E) Always Below 1 Ω
      U16-21 (SWG) - U14-12 (CSWE) Always Below 1 Ω
      U16-2 (LCM+) - Body ground Always 10 kΩ or higher
      U16-1 (LCM-) - Body ground Always 10 kΩ or higher
      U16-20 (PAWL) - Body ground Always 10 kΩ or higher
      U16-16 (CSG) - Body ground Always 10 kΩ or higher
      U16-17 (CS2) - Body ground Always 10 kΩ or higher
      U16-18 (CS1) - Body ground Always 10 kΩ or higher
      U16-19 (CSV) - Body ground Always 10 kΩ or higher
      U16-7 (HAF) - Body ground Always 10 kΩ or higher
      U16-21 (SWG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK LUGGAGE DOOR CLOSER ASSEMBLY


    1. Temporarily replace the luggage door closer assembly with a new or known good one Click here.

    2. Check the luggage door closer operation.

      OK
      Luggage door closer normal operation.

    OK

    END (LUGGAGE DOOR CLOSER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY Click here

  8. INSPECT LUGGAGE COMPARTMENT DOOR LOCK CYLINDER ASSEMBLY


    1. A00053VE01
      Text in Illustration
      *a

      Component without harness connected:

      (Luggage Compartment Door Lock Cylinder Assembly)

      Remove the luggage compartment door lock cylinder assembly Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Not turned 10 kΩ or higher
      1 - 2 Turned Below 1 Ω

    NG

    REPLACE LUGGAGE COMPARTMENT DOOR LOCK CYLINDER ASSEMBLY Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - LUGGAGE COMPARTMENT DOOR LOCK CYLINDER ASSEMBLY AND BODY GROUND)


    1. Disconnect the H10 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the U4 luggage compartment door lock cylinder assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H10-23 (TKUL) - U4-2 (UL) Always Below 1 Ω
      U4-1 (E) - Body ground Always Below 1 Ω
      H10-23 (TKUL) - 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