Section 394 (Power Window Control System): Inspection

WARNING: This page is about a different car, the 2004 Toyota Celica. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT POWER WINDOW MASTER SWITCH CONTINUITY

SPECIFICATION CONDITION CHART

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

SPECIFICATION CONDITION CHART

Switch position	Tester connection	Specified condition
UP	1 - 11, 10 - 17	Continuity
OFF	1 - 17, 10 - 17	Continuity
DOWN	10 - 11, 1 - 17	Continuity

SPECIFICATION CONDITION CHART

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.

Fig 1: Inspecting Power Window Master Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT POWER MAIN RELAY CONTINUITY

SPECIFICATION CONDITION CHART

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: Inspecting Power Main Relay

Driver's door:
1. 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
  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: Checking Motor Turns Counterclockwise
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Passenger's door:
1. 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: Connecting Battery Positive (+) Lead To Terminal 1
  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: Checking Motor Turns Counterclockwise
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Driver's door:
1. INSPECT PTC OPERATION
1. Disconnect the connector from the window motor.
  
  Fig 7: Disconnecting Connector From Window Motor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
  
  Fig 8: Disconnecting Leads From Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If operation is not as specified, replace the motor.
Passenger's door:
1. INSPECT PTC OPERATION
1. Disconnect the connector from the power window switch.
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.
  
  Fig 9: Inspecting PTC Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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 the battery negative (-) lead to terminal 2, then check that the window begins to descend.
  
  Fig 10: Disconnecting Leads From Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If operation is not as specified, replace the motor.