POWER BACK DOOR SYSTEM Power Back Door cannot be Operated Using Any Switch

DTC Code DTC Name
Power Back Door cannot be Operated Using Any Switch

DESCRIPTION

When the power back door cannot be operated using any switch, one of the following may be the cause: 1) initialization of the multiplex network door ECU, 2) power back door sensor assembly circuit, 3) power back door ON/OFF signal circuit, 4) back door closer system, 5) meter / gauge system, 6) multiplex network door ECU power source circuit or 7) multiplex network door ECU.

WIRING DIAGRAM

E285016E13

CAUTION / NOTICE / HINT

Note:

  • First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this problem.

    Click here

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

  • This check is possible only when the "Power Back Door Function" customization setting using the multi-information display in the combination meter assembly is set to ON (initial setting is ON).

    Click hereClick here

  • If the replacement, removal and installation of the multiplex network door ECU or disconnection of the connectors of the multiplex network door ECU has been performed, initialize the power back door system.

    Click here

PROCEDURE

  1. INITIALIZE MULTIPLEX NETWORK DOOR ECU

    1. Perform the initialization for the multiplex network door ECU.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  2. CHECK POWER BACK DOOR SYSTEM

    1. Check that the power back door hazard warning lights operate normally.

      Click hereClick here

      OK

      The power back door system operate normally

    Result

    Proceed to

    OK

    NG
    OK

    END (POWER BACK DOOR SYSTEM HAS NOT BEEN INITIALIZED)

    NG

  3. CHECK BACK DOOR CLOSER SYSTEM

    1. Check back door closer system operation.

      Click here

      OK

      Back door closer system operates normally

    Result

    Proceed to

    OK

    NG
    NG

    GO TO BACK DOOR CLOSER SYSTEM

    Click here

    OK

  4. CHECK COMBINATION METER ASSEMBLY

    1. With the vehicle stopped and engine idling, check the shift position indicator operation and that the speedometer indicates 0 km/h (0 mph).

      OK

      Combination meter operates normally

    Result

    Proceed to

    OK

    NG
    NG

    GO TO METER / GAUGE SYSTEM

    Click here

    OK

  5. CHECK FOR DTC

    1. Check for DTCs.

      Click here

      Body Electrical > Back Door > Trouble Codes

      OK

      DTC is not output

    Result

    Proceed to

    OK

    NG
    NG

    GO TO DIAGNOSTIC TROUBLE CODE CHART

    Click hereClick here

    OK

  6. CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - AUXILIARY BATTERY AND BODY GROUND)

    1. B428860C03

      *a

      Rear view of wire harness connector

      (to Multiplex Network Door ECU)

      Disconnect the multiplex network door ECU connectors.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      U30-10 (GND) - Body ground

      Always

      Below 1 Ω

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      U29-20 (ECUB) - Body ground

      Power switch off

      11 to 14 V

      U30-1 (B) - Body ground

      Power switch off

      11 to 14 V

      U29-18 (IG) - Body ground

      Power switch on (IG)

      11 to 14 V

      U29-18 (IG) - Body ground

      Power switch off

      Below 1 V

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. READ VALUE USING GTS

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

      Click hereClick here

      Body Electrical > Back Door > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      PBD Main SW

      Power back door ON/OFF signal

      ON or OFF

      Current customize setting displayed

      -

      Body Electrical > Back Door > Data List

      Tester Display

      PBD Main SW

      OK

      On GTS screen, item changes between ON and OFF according to above chart.

    Result

    Proceed to

    OK

    NG
    NG

    GO TO METER / GAUGE SYSTEM

    Click hereClick hereClick here

    OK

  8. READ VALUE USING GTS

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

      Click hereClick here

      Body Electrical > Back Door > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      PBD Touch Sensor (Right)

      Power back door sensor assembly RH signal

      ON, OFF or Open

      ON: Power back door sensor assembly RH pressed

      OFF: Power back door sensor assembly RH not pressed

      Open: Power back door sensor assembly RH circuit open

      -

      PBD Touch Sensor (Left)

      Power back door sensor assembly LH signal

      ON, OFF or Open

      ON: Power back door sensor assembly LH pressed

      OFF: Power back door sensor assembly LH not pressed

      Open: Power back door sensor assembly LH circuit open

      -

      Body Electrical > Back Door > Data List

      Tester Display

      PBD Touch Sensor (Right)

      PBD Touch Sensor (Left)

    Result

    Result

    Proceed to

    On the GTS screen, ON or OFF is displayed accordingly

    A

    On the GTS screen, ON or OFF is not displayed accordingly or Open is displayed for power back door sensor assembly RH

    B

    On the GTS screen, ON or OFF is not displayed accordingly or Open is displayed for power back door sensor assembly LH

    C
    A

    REPLACE MULTIPLEX NETWORK DOOR ECU

    Click here

    C

    INSPECT POWER BACK DOOR SENSOR ASSEMBLY LHClick here

    B

  9. INSPECT POWER BACK DOOR SENSOR ASSEMBLY RH

    1. Remove the power back door sensor assembly RH.

      Click here

    2. Inspect the power back door sensor assembly RH.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE POWER BACK DOOR SENSOR ASSEMBLY RH

    Click here

    OK

  10. CHECK HARNESS AND CONNECTOR (POWER BACK DOOR SENSOR ASSEMBLY RH - MULTIPLEX NETWORK DOOR ECU)

    1. Disconnect the U10 power back door sensor assembly RH connector.

    2. Disconnect the U29 multiplex network door ECU connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      U10-1 (OSR) - U29-6 (OSR)

      Always

      Below 1 Ω

      U10-2 (OSRE) - U29-24 (OSE)

      Always

      Below 1 Ω

      U10-1 (OSR) or U29-6 (OSR) - Body ground

      Always

      10 kΩ or higher

      U10-2 (OSRE) or U29-24 (OSE) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE MULTIPLEX NETWORK DOOR ECU

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  11. INSPECT POWER BACK DOOR SENSOR ASSEMBLY LH

    1. Remove the power back door sensor assembly LH.

      Click here

    2. Inspect the power back door sensor assembly LH.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE POWER BACK DOOR SENSOR ASSEMBLY LH

    Click here

    OK

  12. CHECK HARNESS AND CONNECTOR (POWER BACK DOOR SENSOR ASSEMBLY LH - MULTIPLEX NETWORK DOOR ECU)

    1. Disconnect the U11 power back door sensor assembly LH connector.

    2. Disconnect the U29 multiplex network door ECU connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      U11-1 (OSL) - U29-26 (OSL)

      Always

      Below 1 Ω

      U11-2 (OSLE) - U29-24 (OSE)

      Always

      Below 1 Ω

      U11-1 (OSL) or U29-26 (OSL) - Body ground

      Always

      10 kΩ or higher

      U11-2 (OSLE) or U29-24 (OSE) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE MULTIPLEX NETWORK DOOR ECU

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR