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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. RESET POWER WINDOW REGULATOR MOTOR 
    1. Turn the ignition switch ON.
    2. Open the back door glass.
    3. Press the back door power window switch until the door glass is fully closed, and continue to hold the switch 1 second more even after the door glass is fully closed.
    4. Check that the AUTO UP/DOWN function operates normally.

    OK: END 

    NG: Go To Next Step 

  2. CHECK WIRE HARNESS (BACK DOOR ECU <=> POWER WINDOW MOTOR) (BACK <=> DOOR ECU BODY GROUND) 
    1. Disconnect the B9 ECU connector.
    2. Disconnect the B11 motor connector.
    3. Check the continuity between the wire harness side connectors.
      Fig 1: Identifying Back Door ECU And Power Window Motor Connector Terminals
      G02835357Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      STANDARD

      Terminal No. Specified Condition
      B9-23 <=> B11-3 Continuity
      B9-17 <=> B11-2 Continuity
      B9-16 <=> B11-6 Continuity
      B9-11 <=> B11-1 Continuity
    4. Check the continuity between the B9 ECU connector and the body ground.
    STANDARD

    Terminal No. Specified Condition
    B9-11 <=> Body ground No continuity
    B9-16 <=> Body ground No continuity
    B9-17 <=> Body ground No continuity

    OK: REPLACE POWER WINDOW REGULATOR/MOTOR ASSY LH 

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

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