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

DESCRIPTION

If the power back door system cannot be operated using any switch, one of the following may be the cause: 1) the multiplex network door ECU has not been initialized, 2) malfunction in the power back door sensor assembly circuit, 3) malfunction in the door control switch circuit, 4) back door closer system malfunction, 5) meter/gauge system malfunction, 6) malfunction in the multiplex network door ECU power source circuit or 7) multiplex network door ECU malfunction.

WIRING DIAGRAM

A018J4KE01

CAUTION / NOTICE / HINT

Note


  • The power back door system uses the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power back door system after confirming that the communication system is functioning properly.

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

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 power back door system operation.

      Click here

      Result
      Result Proceed to
      Power back door system operates normally A
      Power back door system does not operate B

    A

    END

    B

  3. CHECK BACK DOOR CLOSER SYSTEM


    1. Check back door closer system operation.

      Click here

      Result
      Result Proceed to
      Back door closer system operates normally A
      Back door closer system does not operate B

    B

    GO TO BACK DOOR CLOSER SYSTEM Click here

    A

  4. CHECK COMBINATION METER ASSEMBLY


    1. Check shift position indicator operation and check that the speedometer indicates 0 km/h (0 mph) when the vehicle is stopped with the engine is idling.

      Result
      Result Proceed to
      Combination meter assembly operates normally A
      Combination meter assembly does not operate B

    B

    GO TO METER/GAUGE SYSTEM Click here

    A

  5. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Back Door > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

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


    1. A018LSBC03
      *a

      Front view of wire harness connector

      (to Multiplex Network Door ECU)

      Disconnect the X6 and X7 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
      X7-7 (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
      X6-1 (ECUB) - Body ground Always 11 to 14 V
      X7-8 (B) - Body ground Always 11 to 14 V
      X6-7 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      X6-7 (IG) - Body ground Engine switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. 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 / 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 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

    B

    INSPECT POWER BACK DOOR SENSOR ASSEMBLY RH Click here

    C

    INSPECT POWER BACK DOOR SENSOR ASSEMBLY LH Click here

    A

  8. 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 / 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 Main SW Door control switch signal ON or OFF

      ON: Door control switch on

      OFF: Door control switch off

      		 -

      Body Electrical > Back Door > Data List
      Tester Display
      PBD Main SW
      OK
      On the GTS screen, ON or OFF is displayed accordingly.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MULTIPLEX NETWORK DOOR ECU 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 - MULTIPLEX NETWORK DOOR ECU AND BODY GROUND)


    1. Disconnect the F52 door control switch connector.

    2. Disconnect the X6 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
      F52-2 (MSW) - X6-20 (MSW) Always Below 1 Ω
      F52-1 (MSE) - Body ground Always Below 1 Ω
      F52-2 (MSW) or X6-20 (MSW) - 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 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

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


    1. Disconnect the X24 power back door sensor assembly RH connector.

    2. Disconnect the X6 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
      X24-1 (OSR) - X6-16 (OSR) Always Below 1 Ω
      X24-2 (OSRE) - X6-17 (OSE) Always Below 1 Ω
      X24-1 (OSR) or X6-16 (OSR) - Body ground Always 10 kΩ or higher
      X24-2 (OSRE) or X6-17 (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

  13. 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

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


    1. Disconnect the X2 power back door sensor assembly LH connector.

    2. Disconnect the X6 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
      X2-1 (OSL) - X6-18 (OSL) Always Below 1 Ω
      X2-2 (OSLE) - X6-17 (OSE) Always Below 1 Ω
      X2-1 (OSL) or X6-18 (OSL) - Body ground Always 10 kΩ or higher
      X2-2 (OSLE) or X6-17 (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