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Power Window Control System: Inspection

  1. POWER WINDOW SYSTEM CIRCUIT 
    Fig 1: Power Window System Circuit Diagram
    G02635616Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    1. Measure the resistance of the master switch.

      Driver's switch (Window unlock and lock) 

      TESTER CONNECTION AND SPECIFIED CONDITION (1 OF 8)

      Switch Condition Tester Connection Specified Condition
      UP DU (4) - B (6) - B (7) Below 1 Ω
      E(1)-E(3)-DD(9)
      OFF E(1)-E(3)-DU(4) Below 1Ω
      E(1)-E(3)-DD(9)
      DOWN E(1)-E(3)-DU(4) Below 1Ω
      B (6) - B (7) - DD (9)
      DOWN AUTO E(1)-E(3)-DU(4) Below 1Ω
      B (6) - B (7) - DD (9)

      Front passenger's switch (Window unlock) 

      TESTER CONNECTION AND SPECIFIED CONDITION (2 OF 8)

      Switch Condition Tester Connection Specified Condition
      UP E(1)-E(3)-PD(15) Below 1Ω
      B(6)-B(7)-PU(18)
      OFF E(1)-E(3)-PD(15) Below 1 Ω
      E(1)-E(3)-PU(18)
      DOWN E(1)-E(3)-PU(18) Below 1Ω
      B(6)-B(7)-PD(15)

      Front passenger's switch (Window lock) 

      TESTER CONNECTION AND SPECIFIED CONDITION (3 OF 8)

      Switch Condition Tester Connection Specified Condition
      UP B(6)-B(7)-PU(18) Below 1Ω
      OFF PD(15)-PU(18) Below 1Ω
      DOWN B(6)-B(7)-PD(15) Below 1Ω

      Rear left switch (Window unlock) 

      TESTER CONNECTION AND SPECIFIED CONDITION (4 OF 8)

      Switch Condition Tester Connection Specified Condition
      UP E(1)-E(3)-RLD(13) Below 1Ω
      B(6)-B(7)-RLU(12)
      OFF E(1)-E(3)-RLD(13) Below 1Ω
      E(1)-E(3)-RLU(12)
      DOWN E(1)-E(3)-RLU(12) Below 1Ω
      B(6)-B(7)-RLD(13)

      Rear left switch (Window lock) 

      TESTER CONNECTION AND SPECIFIED CONDITION (5 OF 8)

      Switch Condition Tester Connection Specified Condition
      UP B(6)-B(7)-RLU(12) Below 1Ω
      OFF RLU(12)-RLD(13) Below 1Ω
      DOWN B(6)-B(7)-RLD(13) Below 1Ω
      Fig 2: Identifying Power Window Regulator Master Switch Assy
      G02635617Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Rear right switch (Window unlock) 

      TESTER CONNECTION AND SPECIFIED CONDITION (6 OF 8)

      Switch Condition Tester Connection Specified Condition
      UP B(6)-B(7)-RRU(10) Below 1Ω
      E(1)-E(3)-RRD(16)
      OFF E(1)-E(3)-RRU(10) Below 1 Ω
      E(1)-E(3)-RRD(16)
      DOWN E(1)-E(3)-RRU(10) Below 1Ω
      B(6)-B(7)-RRD(16)

      Rear right switch (Window lock) 

      TESTER CONNECTION AND SPECIFIED CONDITION (7 OF 8)

      Switch Condition Tester Connection Specified Condition
      UP B(6)-B(7) -RRU(10) Below 1Ω
      OFF RRU(10)-RRD(16) Below 1Ω
      DOWN B(6)-B(7)-RRD(16) Below 1Ω

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

    2. Inspect the master switch illumination.
      Fig 3: Inspecting Master Switch Illumination
      G02635618Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 4: Master Switch Illumination Reference Chart
      G02635619Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      Fig 5: Identifying Front Passenger Regulator Switch
      G02635620Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT POWER WINDOW REGULATOR SWITCH ASSY 
    1. Measure the resistance of the front passenger regulator switch.
      TERMINAL CONNECTION AND SPECIFIED CONDITION

      Switch Condition Terminal Connection Specified Condition
      UP D(1)-SD(2) Below 1Ω
      U(3)-B(4)
      OFF D(1)-SD(2) Below 1 Ω
      U(3)-SU(5)
      DOWN D(1)-B(4) Below 1 Ω
      U (3) - SU (5)

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

  4. INSPECT POWER WINDOW REGULATOR SWITCH ASSY REAR 
    1. Measure the resistance of the rear regulator switch.
      TESTER CONNECTION AND SPECIFIED CONDITION (8 OF 8)

      Switch Condition Tester Connection Specified Condition
      UP SD(1)-D(2) Below 1Ω
      B (3) - U (4)
      OFF SD(1)-D(2) Below 1Ω
      U (4) - SU (5)
      DOWN D(2)-B(3) Below 1 Ω
      U (4) - SU (5)

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

      Fig 6: Identifying Rear Regulator Switch And Connector
      G02635621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSPECT POWER WINDOW REGULATOR MOTOR 
    1. Inspect the regulator motor operation.

      HINT:

      • The driver's side and rear RH regulator motors should be inspected in the same procedure.
      • The passenger's side and rear LH regulator motors should be inspected in the same procedure.
        1. Check that the motor operates smoothly when battery positive voltage is applied to each terminal of the connector.
      Fig 7: Identifying Power Window Regulator Motor
      G02635622Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 8: Driver's Side And Rear RH Side Reference Chart
      G02635623Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 9: Front Passenger's Side And Rear LH Side Reference Chart
      G02635624Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

    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 to terminal 4 or 5 of the wire harness.
        NOTE: Match the arrow mark of the probe with the current direction.
        Fig 10: Identifying Fully Closed Position
        G02635625Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Set the door glass to the fully closed position.
      3. When 60 seconds have elapsed after the door glass is fully closed, pull the power window switch up once again. Check how long it takes for the current to change from approximately 16 to 34 A into 1 A or less.

        Standard: Approximately 4 to 90 seconds 

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

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

      Fig 11: Identifying Power Window Regulator Down Switch Connector
      G02635626Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT RELAY (Making: P/W) 
    1. Remove the P/W relay from the instrument panel J/B.
    2. Measure the resistance of the relay.
      Fig 12: Measuring Resistance Of Relay
      G02635627Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TERMINAL NO SPECIFIED CONDITION

      Terminal No. Specified Condition
      3-5 10kΩ or higher
      3-5 Below 1Ω (when battery voltage is applied to terminal 1 and 2)

      Standard: 

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

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