BACK DOOR CLOSER SYSTEM Back Door Closer does not Operate

DESCRIPTION


WIRING DIAGRAM

A01CBDVE03

INSPECTION PROCEDURE

PROCEDURE


  1. SYSTEM CHECK


    1. Check the vehicle specification.

      Result Proceed to
      w/ Power Back Door System A
      w/o Power Back Door System B

    B

    CHECK DTC OUTPUT Click here

    A

  2. CHECK BACK DOOR LOCK FUNCTION


    1. Check if the back door is fully closed by hand.


    NG

    IMPROPER FIT OF BACK DOOR, OR A FOREIGN MATTER IS STUCK IN BACK DOOR

    OK

  3. INITIALIZE POWER BACK DOOR ECU


    1. Perform the initialization of the back door motor unit (power back door ECU) Click here.


    NEXT

  4. CHECK BACK DOOR CLOSER SYSTEM


    1. Check back door closer system operation.

      OK
      Back door closer system operates normally.

    NG

    READ VALUE USING INTELLIGENT TESTER (POWER BACK DOOR TOUCH SENSOR) Click here

    OK

    END

  5. READ VALUE USING INTELLIGENT TESTER (POWER BACK DOOR TOUCH SENSOR)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Back Door / Data List.

    5. Check the Data List to determine if the power back door touch sensor functions properly.

      Back Door (Power Back Door ECU)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      PBD Touch Sensor (Left) Power back door touch sensor LH signal / ON or OFF

      ON: Power back door touch sensor LH pressed

      OFF: Power back door touch sensor LH not pressed

      		 -
      PBD Touch Sensor (Right) Power back door touch sensor RH signal / ON or OFF

      ON: Power back door touch sensor RH pressed

      OFF: Power back door touch sensor RH not pressed

      		 -
      OK
      The power back door sensors function as specified in the "Normal Condition" column.

    NG

    GO TO OTHER FLOW CHART (TOUCH SENSOR CIRCUIT) Click here

    OK

  6. CHECK DTC OUTPUT


    1. Turn the engine switch on (IG).

    2. Turn the intelligent tester on.

    3. Enter the following menus: Body / Back Door / DTC.

    4. Check for DTCs.

      Result
      Result Proceed to
      DTC is not output A
      B2250 is output B
      B2251 is output C

    B

    GO TO DTC CHART (B2250) Click here

    C

    GO TO DTC CHART (B2251) Click here

    A

  7. INSPECT FUSE (LH ECU-IG, PBD, ECU-B)


    1. Remove the LH ECU-IG and PBD fuses from the driver side junction block assembly.*1

    2. Remove the LH ECU-IG and PBD fuses from the passenger side junction block assembly.*2

    3. Remove the ECU-B fuse from the No. 1 engine room junction block.

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


      • *1: for LHD

      • *2: for RHD

      Standard Resistance
      Tester Connection Condition Specified Condition
      LH ECU-IG Always Below 1 Ω
      PBD Always Below 1 Ω
      ECU-B Always Below 1 Ω

    NG

    REPLACE FUSE

    OK

  8. CHECK HARNESS AND CONNECTOR (POWER SOURCE)


    1. Disconnect the N18*1 or N33*2 connector.


      • *1: w/ Power Back Door System

      • *2: w/o Power Back Door System

    2. w/ Power Back Door System


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

        A01CBJZE01
        Standard Voltage
        Tester Connection Condition Specified Condition
        N18-8 (IG) - Body ground Engine switch on (IG) 11 to 14 V
        N18-10 (ECUB) - Body ground Always 11 to 14 V
        N18-12 (B) - Body ground Always 11 to 14 V

    3. w/o Power Back Door System


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

        A01CBCOE05
        Standard Voltage
        Tester Connection Condition Specified Condition
        N33-15 (IG) - Body ground Engine switch on (IG) 11 to 14 V
        N33-16 (ECUB) - Body ground Always 11 to 14 V
        N33-4 (B) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK HARNESS AND CONNECTOR (BODY GROUND)


    1. w/ Power Back Door System


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

        A01CBJZE02
        Standard Resistance
        Tester Connection Condition Specified Condition
        N18-11 (GND) - Body ground Always Below 1 Ω

    2. w/o Power Back Door System


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

        A01CBCOE07
        Standard Resistance
        Tester Connection Condition Specified Condition
        N33-3 (GND) - Body ground Always Below 1 Ω

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


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT BACK DOOR LOCK ASSEMBLY


    1. Remove the back door lock assembly Click here.

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

      A01CFLPE12
      OK
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 1 (M+)

      Battery negative (-) → Terminal 2 (M-)

      		 Latch turns to full-latch position

      Battery positive (+) → Terminal 2 (M-)

      Battery negative (-) → Terminal 1 (M+)

      		 Latch turns to open-latch position

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

      Standard Resistance
      Latch Switch
      Tester Connection Condition Specified Condition
      5 (CLS) - 4 (E) Open-latch Below 1 Ω
      5 (CLS) - 4 (E) Half-latch 10 kΩ or higher
      5 (CLS) - 4 (E) Full-latch 10 kΩ or higher
      5 (CLS) - 4 (E) Over-latch Below 1 Ω
      Back Door Courtesy Switch
      Tester Connection Condition Specified Condition
      3 (CTY) - 4 (E) Open-latch Below 1 Ω
      3 (CTY) - 4 (E) Half-latch Below 1 Ω
      3 (CTY) - 4 (E) Full-latch 10 kΩ or higher
      3 (CTY) - 4 (E) Over-latch 10 kΩ or higher

    NG

    REPLACE BACK DOOR LOCK ASSEMBLY Click here

    OK

  11. CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK - POWER BACK DOOR ECU OR BACK DOOR CLOSER ECU)


    1. w/ Power Back Door System


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

        A01CFYQE15
        Standard Resistance
        Tester Connection Condition Specified Condition
        U13-1 (M+) - N18-2 (DC+) Always Below 1 Ω
        U13-2 (M-) - N18-1 (DC-) Always Below 1 Ω
        U13-5 (CLS) - N18-22 (HAF) Always Below 1 Ω
        U13-6 (OPN) - N18-24 (POS) Always Below 1 Ω
        U13-3 (CTY) - N18-20 (FUL) Always Below 1 Ω
        U13-4 (E) - Body ground Always Below 1 Ω
        U13-1 (M+) - Body ground Always 10 kΩ or higher
        U13-2 (M-) - Body ground Always 10 kΩ or higher
        U13-5 (CLS) - Body ground Always 10 kΩ or higher
        U13-6 (OPN) - Body ground Always 10 kΩ or higher
        U13-3 (CTY) - Body ground Always 10 kΩ or higher

    2. w/o Power Back Door System


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

        A01CDVUE12
        Standard Resistance
        Tester Connection Condition Specified Condition
        U13-1 (M+) - N33-2 (DC+) Always Below 1 Ω
        U13-2 (M-) - N33-1 (DC-) Always Below 1 Ω
        U13-5 (CLS) - N33-5 (HAF) Always Below 1 Ω
        U13-6 (OPN) - N33-7 (POS) Always Below 1 Ω
        U13-3 (CTY) - N33-6 (FUL) Always Below 1 Ω
        U13-4 (E) - Body ground Always Below 1 Ω
        U13-1 (M+) - Body ground Always 10 kΩ or higher
        U13-2 (M-) - Body ground Always 10 kΩ or higher
        U13-5 (CLS) - Body ground Always 10 kΩ or higher
        U13-6 (OPN) - Body ground Always 10 kΩ or higher
        U13-3 (CTY) - Body ground Always 10 kΩ or higher
        Result
        Result Proceed to
        NG A
        OK (w/ Power Back Door System) B
        OK (w/o Power Back Door System) C

    B

    REPLACE BACK DOOR MOTOR UNIT (POWER BACK DOOR ECU) Click here

    C

    REPLACE MULTIPLEX NETWORK DOOR ECU (BACK DOOR CLOSER ECU) Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR