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) CAN communication system, 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

B005P94E10

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 CAN communication system is functioning properly.

    Click here

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

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

    Click here

  • If the multiplex network door ECU has been removed and installed or replaced, or if any of the connectors has been disconnected, initialize the power back door system.

    Click here

PROCEDURE


  1. INITIALIZE MULTIPLEX NETWORK DOOR ECU


    1. Initialize the multiplex network door ECU.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK POWER BACK DOOR SYSTEM


    1. Check the power back door system operation.

      Click here

      OK
      Power back door system operates 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 the 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. Check the shift position indicator operation and check that the speedometer indicates 0 km/h (0 mph) when the vehicle is stopped with the engine idling.

      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
      DTCs are not output
      Result
      Proceed to
      OK
      NG

    NG

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    OK

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


    1. B005NGVC06
      *a

      Rear view of wire harness connector

      (to Multiplex Network Door ECU)

      Disconnect the Z16 and Z17 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
      Z17-10 (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
      Z16-20 (ECUB) - Body ground Always 11 to 14 V
      Z17-1 (B) - Body ground Always 11 to 14 V
      Z16-18 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. READ VALUE USING GTS (PBD Main SW)


    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 Power back door ON/OFF signal ON or OFF Customize setting displayed -

      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

    NG

    GO TO METER / GAUGE SYSTEM Click here

    OK

  8. READ VALUE USING GTS (PBD Touch Sensor)


    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 OFF, ON or Open

      OFF: Power back door sensor assembly RH not pressed

      ON: Power back door sensor assembly RH pressed

      Open: Power back door sensor assembly RH circuit open

      		 -
      PBD Touch Sensor (Left) Power back door sensor assembly LH signal OFF, ON or Open

      OFF: Power back door sensor assembly LH not pressed

      ON: Power back door sensor assembly LH 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

  9. INSPECT POWER BACK DOOR UNIT ASSEMBLY SET LH


    1. Disconnect the Z18 power back door unit assembly set LH connector.

    2. B005LHHC02
      *a

      Front view of wire harness connector

      (to Power Back Door Unit Assembly set LH )

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

      Note

      Make sure to connect the tester probes to the correct terminals. Connecting the probes to the wrong terminals can cause damage.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Positive (+) probe - 3 (DSV) - Negative (-) probe - 4 (DSG) Always 415.5 Ω or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE POWER BACK DOOR UNIT ASSEMBLY SET LH Click here

    OK

  10. INSPECT POWER BACK DOOR UNIT ASSEMBLY SET RH


    1. Disconnect the Z19 power back door unit assembly set RH connector.

    2. B005LHHC02
      *a

      Front view of wire harness connector

      (to Power Back Door Unit Assembly set RH )

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

      Note

      Make sure to connect the tester probes to the correct terminals. Connecting the probes to the wrong terminals can cause damage.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Positive (+) probe - 3 (DSV2) - Negative (-) probe - 4 (DSG2) Always 415.5 Ω or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MULTIPLEX NETWORK DOOR ECU Click here

    NG

    REPLACE POWER BACK DOOR UNIT ASSEMBLY SET RH Click here

  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 Z14 power back door sensor assembly RH connector.

    2. Disconnect the Z16 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
      Z14-1 (OSR) - Z16-6 (OSR) Always Below 1 Ω
      Z14-2 (OSRE) - Z16-24 (OSE) Always Below 1 Ω
      Z14-1 (OSR) or Z16-6 (OSR) - Body ground Always 10 kΩ or higher
      Z14-2 (OSRE) or Z16-24 (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

  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 Z3 power back door sensor assembly LH connector.

    2. Disconnect the Z16 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
      Z3-1 (OSL) - Z16-26 (OSL) Always Below 1 Ω
      Z3-2 (OSLE) - Z16-24 (OSE) Always Below 1 Ω
      Z3-1 (OSL) or Z16-26 (OSL) - Body ground Always 10 kΩ or higher
      Z3-2 (OSLE) or Z16-24 (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