POWER BACK DOOR SYSTEM Door Control Switch Circuit

DESCRIPTION

The back door control switch only turns on while the switch is being pressed, and turns off when the back door control switch is released.

When the back door control switch is on, a power back door close request signal is input to the power back door unit assembly (power back door ECU) to close the back door.

WIRING DIAGRAM

A015700E03

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (PBD CLOSE SW)


    1. Check the Data List for proper functioning of the back door control switch Click here.

      Back Door
      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 on

      OFF: Back door control switch off

      		 -
      OK
      The display is as specified in the normal condition.

    NG

    INSPECT BACK DOOR CONTROL SWITCH Click here

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  2. INSPECT BACK DOOR CONTROL SWITCH


    1. Remove the back door control switch Click here.

    2. Inspect the back door control switch Click here.


    NG

    REPLACE BACK DOOR CONTROL SWITCH Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (BACK DOOR CONTROL SWITCH - POWER BACK DOOR UNIT ASSEMBLY [POWER BACK DOOR ECU] AND BODY GROUND)


    1. Disconnect the S25 back door control switch connector.

    2. Disconnect the L52 power back door unit assembly (power back door ECU) connector.

    3. Measure the resistance of the wire harness side connectors.

      Standard Resistance
      Tester Connection Condition Specified Condition
      S25-3 (MSW) - L52-4 (DS1) Always Below 1 Ω
      S25-4 (E) - Body ground Always Below 1 Ω
      S25-3 (MSW) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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