POWER BACK DOOR SYSTEM Power Back Door cannot be Opened or Closed Using the Back Door Control Switch

DESCRIPTION

When the power back door cannot be closed using the back door control switch, either of the following may be malfunctioning: 1) back door control switch circuit or 2) multiplex network door ECU.

WIRING DIAGRAM

B0058Z5E18

CAUTION / NOTICE / HINT

Note

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.

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PROCEDURE


  1. READ VALUE USING GTS


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

      Click here


      Body Electrical > Back Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      PBD Close SW Back door control switch signal ON or OFF

      ON: Back door control switch pushed

      OFF: Back door control switch not pushed

      		 -

      Body Electrical > Back Door > Data List
      Tester Display
      PBD Close SW
      OK
      The back door control switch functions as specified in the normal condition column.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MULTIPLEX NETWORK DOOR ECU Click here

    NG

  2. INSPECT BACK DOOR CONTROL SWITCH


    1. Remove the back door control switch.

      Click here

    2. Inspect the back door control switch.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE BACK DOOR CONTROL SWITCH Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (BACK DOOR CONTROL SWITCH - MULTIPLEX NETWORK DOOR ECU AND BODY GROUND)


    1. Disconnect the Y28 back door control switch connector.

    2. Disconnect the Y25 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
      Y28-5 (CLS) - Y25-8 (BDDN) Always Below 1 Ω
      Y28-2 (E) - Body ground Always Below 1 Ω
      Y28-5 (CLS) or Y25-8 (BDDN) - 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