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Power Window Control System: Inspection

  1. POWER WINDOW SYSTEM CIRCUIT 
    Fig 1: Inspecting Power Window System Circuit
    G02922318Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    1. Inspect the master switch continuity.

      [Driver's switch (Window unlock and lock)] 

      Standard: 

      Window Unlock And Lock Drivers Switch Specific Condition

      Switch Position Symbols (Terminal No.) Specified Condition
      UP DU (4) <==> B (6) <==> B (7) Continuity
      UP E (1) <==> E (3) <==> DD (9) Continuity
      OFF E (1) <==> E (3) <==> DU (4) Continuity
      OFF E (1) <==> E (3) <==> DD (9) Continuity
      DOWN E (1) <==> E (3) <==> DU (4) Continuity
      DOWN B (6) <==> B (7) <==> DD (9) Continuity
      DOWN AUTO E (1) <==> E (3) <==> DU (4) Continuity
      DOWN AUTO B (6) <==> B (7) <==> DD (9) Continuity
      Fig 2: Inspecting Power Window Regulator Master Switch
      G02922319Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      [Front passenger's switch (Window unlock)] 

      Standard: 

      Window Unlock Front Passenger's Switch Specified Condition

      Switch Position Symbols (Terminal No.) Specified Condition
      UP E (1) <==> E (3) <==> PD (15) Continuity
      UP B (6) <==> B (7) <==> PU (18) Continuity
      OFF E (1) <==> E (3) <==> PD (15) Continuity
      OFF E (1) <==> E (3) <==> PU (18) Continuity
      DOWN E (1) <==> E (3) <==> PU (18) Continuity
      DOWN B (6) <==> B (7) <==> PD (15) Continuity

      [Front passenger's switch (Window lock)] 

      Standard: 

      Window Lock Front Passenger's Switch Specified Condition

      Switch Position Symbols (Terminal No.) Specified Condition
      UP B (6) <==> B (7) <==> PU (18) Continuity
      OFF PD (15) <==> PU (18) Continuity
      DOWN B (6) <==> B (7) <==> PD (15) Continuity

      [Rear left switch (Window unlock)] 

      Standard: 

      Window Unlock Rear Left Switch Specified Condition

      Switch Position Symbols (Terminal No.) Specified Condition
      UP E (1) <==> E (3) <==> RLD (13) Continuity
      UP B (6) <==> B (7) <==> RLU (12) Continuity
      OFF E (1) <==> E (3) <==> RLD (13) Continuity
      OFF E (1) <==> E (3) <==> RLU (12) Continuity
      DOWN E (1) <==> E (3) <==> RLU (12) Continuity
      DOWN B (6) <==> B (7) <==> RLD (13) Continuity

      [Rear left switch (Window lock)] 

      Standard: 

      Window Lock Rear Left Switch Specified Condition

      Switch Position Symbols (Terminal No.) Specified Condition
      UP B (6) <==> B (7) <==> RLU (12) Continuity
      OFF RLU (12) <==> RLD (13) Continuity
      DOWN B (6) <==> B (7) <==> RLD (13) Continuity

      [Rear right switch (Window unlock)] 

      Standard: 

      Window Unlock Rear Right Switch Specified Condition

      Switch Position Symbols (Terminal No.) Specified Condition
      UP B (6) <==> B (7) <==> RRU (10) Continuity
      UP E (1) <==> E (3) <==> RRD (16) Continuity
      OFF E (1) <==> E (3) <==> RRU (10) Continuity
      OFF E (1) <==> E (3) <==> RRD (16) Continuity
      DOWN E (1) <==> E (3) <==> RRU (10) Continuity
      DOWN B (6) <==> B (7) <==> RRD (16) Continuity

      [Rear right switch (Window lock)] 

      Standard: 

      Window Lock Rear Right Switch Specified Condition

      Switch Position Symbols (Terminal No.) Specified Condition
      UP B (6) <==> B (7) <==> RRU (10) Continuity
      OFF RRU (10) <==> RRD (16) Continuity
      DOWN B (6) <==> B (7) <==> RRD (16) Continuity

      If the result is not as specified, replace the master switch.

    2. Inspect the master switch illumination.

      Standard: 

      Master Switch Specified Condition

      Measuring Condition Specified Condition
      Battery Positive (+) Terminal - 6 Switch Illumination Lights Up
      Battery Negative (-) Terminal - 3 Switch Illumination Lights Up

      If the result is not as specified, replace the master switch.

      Fig 3: Inspecting Master Switch Illumination
      G02922320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT POWER WINDOW REGULATOR SWITCH ASSY 
    1. Inspect the front passenger's regulator switch continuity.

      Standard: 

      Front Passenger's Regulator Switch Specified Condition

      Switch Position Symbols (Terminal No.) Specified Condition
      UP D (1) <==> SD (2) Continuity
      UP U (3) <==> B (4) Continuity
      OFF D (1) <==> SD (2) Continuity
      OFF U (3) <==> SU (5) Continuity
      DOWN D (1) <==> B (4) Continuity
      DOWN U (3) <==> SU (5) Continuity

      If the result is not as specified, replace the regulator switch.

      Fig 4: Identifying Front Passenger Regulator Switch Connector Terminal
      G02922321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT POWER WINDOW REGULATOR SWITCH ASSY REAR 
    1. Inspect the rear regulator switch continuity.

      Standard: 

      Rear Power Window Regulator Switch Specified Condition

      Switch Position Symbols (Terminal No.) Specified Condition
      UP SD (1) <==> D (2) Continuity
      UP B (3) <==> U (4) Continuity
      OFF SD (1) <==> D (2) Continuity
      OFF U (4) <==> SU (5) Continuity
      DOWN D (2) <==> B (3) Continuity
      DOWN U (4) <==> SU (5) Continuity

      If the result is not as specified, replace the regulator switch.

      Fig 5: Identifying Rear Regulator Switch Connector Terminal
      G02922322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSPECT POWER WINDOW REGULATOR MOTOR 
    1. Inspect the regulator motor operation.
      NOTE:
      • Driver's side and rear RH regulator motors should be inspected in the same procedure.
      • Passenger's side and rear LH regulator motors should be inspected in the same procedure.
        1. Check that the motor operates smoothly when the battery positive voltage is applied to each terminal of the connector.

        Standard [Driver's side and rear RH side]: 

        Measuring Condition Operational Direction

        Measuring Condition Operational Direction
        Battery Positive (+) Terminal - 4 Clockwise Toward Driving Axis
        Battery Negative (-) Terminal - 5 Clockwise Toward Driving Axis
        Battery Positive (+) Terminal - 5 Counterclockwise Toward Driving Axis
        Battery Negative (-) Terminal - 4 Counterclockwise Toward Driving Axis

        Standard [Front passenger's side and rear LH side]: 

        Measuring Condition Operational Direction

        Measuring Condition Operational Direction
        Battery Positive (+) Terminal - 5 Clockwise Toward Driving Axis
        Battery Negative (-) Terminal - 4 Clockwise Toward Driving Axis
        Battery Positive (+) Terminal - 4 Counterclockwise Toward Driving Axis
        Battery Negative (-) Terminal - 5 Counterclockwise Toward Driving Axis

        If the result is not as specified, replace the motor.

        Fig 6: Inspecting Power Window Regulator Motor
        G02922323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Inspect the PTC operation inside the regulator motor.
      NOTE: The inspection should be performed with the power window regulator and door glass installed to the vehicle.
      1. Set a DC 400 A probe of the TOYOTA electrical tester in the wire harness of terminal 4 or 5.
        NOTE: Match the arrow mark of the probe with the current direction.
        Fig 7: Inspecting Power Window Regulator and Wire Harness Connector Terminal When Door Glasse Is Fully Closed
        G02922324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Set the door glass in the fully closed position.
      3. When 60 seconds have elapsed after the door glass is fully closed, check how long it takes for the current to change from approximately 16 - 34 A into 1 A or less when the power window switch is turned UP once again.

        Standard: Approximately 4 - 90 seconds 

      4. When approximately 60 seconds have elapsed after the inspection of the current cut-off, check that the door glass goes down when the power window regulator switch is turned DOWN.

      If the result is not as specified, replace the motor.

      Fig 8: Inspecting Power Window Regulator and Wire Harness Connector Terminal When Door Glass Goes Downward
      G02922325Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT RELAY (Making: P/W) 
    1. Remove the power window relay from the instrument panel J/B.
    2. Inspect the power window relay.

      Standard: 

      Terminal Specified Condition

      Terminal No. Condition Specified Condition
      1 <==> 2 Constant Continuity
      3 <==> 5 Apply B+ Between Terminals 1 And 2 Continuity

      If the result is not as specified, replace the relay.

      Fig 9: Inspecting Relay Continuity
      G02922326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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