Power Window Control System: Inspection

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.