Power Window Control System: Inspection

Inspect Power Window Master Switch Continuity

POWER WINDOW MASTER SWITCH SPECIFICATIONS (DRIVER'S SWITCH)

Switch Position	Tester Connection	Specified Condition
UP	2 - 9, 17 - 18	Continuity
OFF	9 - 17, 17 - 18	Continuity
DOWN	2 - 18, 9 - 17	Continuity
DOWN AUTO	2 - 18, 9 - 17	Continuity

Fig 1: Identifying Power Window Master Switch Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

POWER WINDOW MASTER SWITCH SPECIFICATIONS (WINDOW UNLOCK)

Switch Position	Tester Connection	Specified Condition
UP	1 - 11, 10 - 17	Continuity
OFF	1 - 17, 10 - 17	Continuity
DOWN	10 - 11, 1 - 17	Continuity

POWER WINDOW MASTER SWITCH SPECIFICATIONS (WINDOW LOCK)

Switch Position	Tester Connection	Specified Condition
UP	1 - 11	Continuity
OFF	1 - 10	Continuity
DOWN	10 - 11	Continuity

If continuity is not as specified, replace the switch.

Inspect Power Main Relay Continuity

POWER MAIN RELAY SPECIFICATIONS

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.

Fig 2: Identifying Power Main Relay Terminals

Driver's door:
Inspect Power Window Motor Operation
1. Connect the battery positive (+) lead to terminal 1 and the battery negative (-) lead to terminal 2, then check that the motor turns clockwise.
  
  Fig 3: Inspecting Power Window Motor Operation (Driver Door)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reverse the polarity, check that the motor turns counterclockwise.
  If operation is not as specified, replace the motor.
  
  Fig 4: Inspecting Power Window Motor Operation While Reversing Polarity (Driver Door)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Passenger's door:
Inspect Power Window Motor Operation
1. Connect the battery positive (+) lead to terminal 1 and the battery negative (-) lead to terminal 2, check that the motor turns clockwise.
  
  Fig 5: Inspecting Power Window Motor Operation (Passenger 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 6: Inspecting Power Window Motor Operation While Reversing Polarity (Passenger Door)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Driver's door:
Inspect PTC Operation
1. Disconnect the connector from the window motor.
2. Connect the ammeter positive (+) lead to terminal 1 of the wire harness side connector and the negative (-) lead to ammeter negative terminal of the battery.
3. Connect the battery positive (+) lead to terminal 2 of the wire harness side connector, and raise the window to the fully closed position.
4. Continue to apply voltage, and check that the current changes from approximately 14 A to less than 1 A within 4 to 90 seconds.
5. Disconnect the leads from terminals.
6. Approximately 90 seconds later, connect the battery positive (+) lead to terminal 1 and battery negative (-) lead to terminal 2, then check that the window begins to descend.
  If operation is not as specified, replace the motor.
Passenger's door:
Inspect PTC Operation
1. Disconnect the connector from the power window switch.
  
  Fig 9: Inspecting PTC Operation (Passenger Door)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the ammeter positive (+) lead to terminal 1 of the wire harness side connector and the ammeter negative (-) lead to negative terminal of the battery.
3. Connect the positive (+) lead from the battery to terminal 2 of the wire harness side connector, and raise the window to the fully closed position.
4. Continue to apply voltage, and check that the current changes from approximately 14 A to less than 1 A within 4 to 90 seconds.
  
  Fig 10: Inspecting PTC Operation Without Using Ammeter (Passenger Door)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Disconnect the leads from terminals.
6. Approximately 90 seconds later, connect the battery positive (+) lead to terminal 1 and the battery negative (-) lead to terminal 2, then check that the window begins to descend.
If operation is not as specified, replace the motor.