Power Window Control System: Inspection

1. INSPECT POWER WINDOW MASTER SWITCH CONTINUITY 

   Front driver's switch: 

   Fig 1: Inspecting Power Window Master Switch Continuity

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   INSPECT POWER WINDOW MASTER SWITCH CONTINUITY
   
   

   Switch position	Tester connection	Specified condition
   UP	1 - 4, 3 - 9	Continuity
   OFF	1 - 3 - 4	Continuity
   DOWN	1 - 3, 4 - 9	Continuity

   Front passenger's switch (Window unlock): 

   SPECIFIED CONDITION
   
   

   Switch position	Tester connection	Specified condition
   UP	1 - 10, 8 -9	Continuity
   OFF	1 - 8 - 10	Continuity
   DOWN	1 - 8, 9 - 10	Continuity

   Front passenger's switch (Window lock): 

   SPECIFIED CONDITION
   
   

   Switch position	Tester connection	Specified condition
   UP	8 - 9	Continuity
   OFF	8 - 10	Continuity
   DOWN	9 - 10	Continuity

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

2. INSPECT POWER WINDOW MASTER SWITCH ILLUMINATION 
   1. Set the window lock switch to the unlock position.
      Fig 2: Checking Power Window Master Switch Operates (Unlocked)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Connect the positive (+) lead from the battery to terminal 9 and the negative (-) lead to terminal 1, and check that all the illuminations light up.
   3. Set the window lock switch to the lock position, check that all the passenger's power window switch illuminations go out.
   Fig 3: Checking Power Window Master Switch Operates (Locked)
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

3. Using an ammeter: 

   INSPECT ONE-TOUCH POWER WINDOW SYSTEM/CURRENT OF CIRCUIT 

   1. Disconnect the connector from the master switch.
   2. Connect the positive (+) lead from the ammeter to terminal 3 on the wire harness side connector and the negative (-) lead to negative terminal of the battery.
      Fig 4: Inspecting One-Touch Power Window System (Window Lowers)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Connect the positive (+) lead from the battery to terminal 4 on the wire harness side connector.
   4. As the window goes down, check that the current flow is approximately 7 A.
   5. Check that the current increases up to approximately 14.5 A or more when the window stops going down.
   NOTE: The circuit breaker opens some 4 - 40 seconds after the window stops going down, so that check must be done before the circuit breaker operates.

   If the operation is as specified, replace the master switch.

   Fig 5: Inspecting One-Touch Power Window System (Window Stops)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Using an ammeter with a current - measuring probe: INSPECT ONE-TOUCH POWER WINDOW SYSTEM / CURRENT OF CIRCUIT 
   1. Remove the master switch with connector connected.
   2. Attach a current-measuring probe to terminal 9 of the wire harness.
   3. Turn the ignition switch ON and set the power window switch in the down position.
   4. As the window goes down, check that the current flow is approximately 7 A.
      Fig 6: Inspecting One-Touch Power Window System (Window Lowering)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   5. Check that the current increases up to approximately 14.5 A or more when the window stops going down.
   Fig 7: Inspecting One-Touch Power Window System (Window Stopping)
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE: The circuit breaker opens some 4 - 40 seconds after the window stops going down, so that check must be done before the circuit breaker operates.

   If operation is as specified, replace the master switch.

5. INSPECT POWER WINDOW MASTER SWITCH CIRCUIT 

   Disconnect the connector from the master switch and inspect the connector on the wire harness side.

   Fig 8: Inspecting Power Window Master Switch Circuit Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   SPECIFIED CONDITION
   
   

   Tester connection	Condition	Specified condition
   1 - Ground	Constant	Continuity
   9 - Ground	Ignition switch position LOCK or ACC	(1) No voltage
   9 - Ground	Ignition switch position ON	Battery positive voltage
   (1) Exceptions: During 60 seconds after the ignition switch is turned ON to OFF (ACC) or until driver or a passenger's door is opened after the ignition switch is turned ON to OFF (ACC). If the circuit is not as specified, inspect the circuits connected to other parts.

6. INSPECT FRONT PASSENGER POWER WINDOW SWITCH CONTINUITY 
   Fig 9: Inspecting Front Passenger Power Window Switch Continuity

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   INSPECT FRONT PASSENGER POWER WINDOW SWITCH CONTINUITY
   
   

   Switch position	Tester connection	Specified condition
   UP	1 - 2, 3 - 4	Continuity
   OFF	1 - 2, 3 - 5	Continuity
   DOWN	1 - 4, 3 - 5	Continuity

   If continuity is not as specified, replace the switch.

7. Convertible: 

   INSPECT QUARTER POWER WINDOW SWITCH CONTINUITY 

   Fig 10: Inspecting Quarter Power Window Switch Continuity (Convertible)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   INSPECT QUARTER POWER WINDOW SWITCH CONTINUITY
   
   

   Switch position	Tester connection	Specified condition
   UP	3 - 5	Continuity
   OFF	-
   DOWN	3 - 6	Continuity

   If continuity is not as specified, replace the switch.

8. Driver's door: 

   INSPECT MOTOR OPERATION 

   1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the motor turns clockwise.
      Fig 11: Checking Motor Turns Clockwise (Driver'S Door)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Reverse the polarity, and check that the motor turns counterclockwise.
   Fig 12: Checking Motor Turns Counterclockwise (Driver'S Door)
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   If operation is not as specified, replace the motor.

9. Front passenger's door: 

   INSPECT MOTOR OPERATION 

   1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the motor turns clockwise.
      Fig 13: Checking Motor Turns Clockwise (Front Passenger'S Door)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Reverse the polarity, and check that the motor turns counterclockwise.

   If operation is not as specified, replace the motor.

   Fig 14: Checking Motor Turns Counterclockwise (Front Passenger'S Door)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
10. Quarter window: 

    INSPECT MOTOR OPERATION 

    1. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the motor turns window up direction.
       Fig 15: Checking Motor Turns Window Up Direction (Quarter Window)

       Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Reverse the polarity, and check that the motor turns window down direction.

    If operation is not as specified, replace the motor.

    Fig 16: Checking Motor Turns Window Down Direction (Quarter Window)

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
11. Driver's door: 

    INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION 

    1. Disconnect the connector from the power window motor.
    2. Connect the positive (+) lead from the ammeter to terminal 2 on the wire harness side connector and the negative (-) lead to negative terminal of the battery.
    3. Connect the positive (+) lead from the battery to terminal 1 on the wire harness side connector, and raise the window to the fully position.
    4. Continue to apply voltage, and check that the current changes to less than 1 A with 4 to 90 seconds.
       Fig 17: Inspecting Power Window Motor PTC Thermistor Operation (Window Raised)

       Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Disconnect the leads from terminals.
    6. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 2 and negative (-) lead to terminal 1, and check that the window begins to descended.
       Fig 18: Inspecting Power Window Motor PTC Thermistor Operation (Window Descending)

       Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If operation is not as specified, replace the motor.

12. Passenger's door: 

    INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION 

    1. Disconnect the connector from the power window motor.
    2. Connect the positive (+) lead from the ammeter to terminal 1 on the wire harness side connector and the negative (-) lead to negative terminal of the battery.
       Fig 19: Inspecting Power Window Motor PTC Thermistor Operation (Window Raised)

       Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect the positive (+) lead from the battery to terminal 2 on the wire harness side connector, and raise the window to the fully position.
    4. Continue to apply voltage and check that the current changes to less than 1 A within 4 to 90 seconds.
    5. Disconnect the leads from the terminals.
    6. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the window begins to descend.
       Fig 20: Inspecting Power Window Motor PTC Thermistor Operation (Window Descending)

       Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If operation is not as specified, replace the motor.

13. INSPECT POWER MAIN RELAY CONTINUITY 
    Fig 21: Inspecting Power Main Relay Continuity

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    INSPECT POWER MAIN RELAY CONTINUITY
    
    

    Condition	Tester connection	Specified condition
    Constant	1 - 2	Continuity
    Apply B+ between terminals 1 and 2.	3 - 5	Continuity

    If continuity is not as specified, replace the relay.

14. Convertible: 

INSPECT QUARTER POWER WINDOW RELAYS CONTINUITY 

Fig 22: Inspecting Quarter Power Window Relays Continuity (Convertible)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If continuity is not as specified, replace the relay.