Power Window Control System: Inspection

POWER WINDOW SYSTEM CIRCUIT

Fig 1: Identifying Power Window System Circuit
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY

Check the resistance between each terminal of the connector when the switch is operated.

Fig 2: Inspecting Power Window Regulator Master Switch ASSY

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard:

Driver switch

DRIVER SWITCH

Window Lock Switch Condition	Power Window Switch Condition	Tester Connection	Specified Condition
Constant (ON/OFF)	UP	1 - 9	Below 1Ω
		3 - 9
		4 - 6
		4 - 7
	OFF	1 - 4
		3 - 4
		1 - 9
		3 - 9
	DOWN	1 - 4
		3 - 4
		6 - 9
		7 - 9
	AUTO DOWN	1 - 4
		3 - 4
		6 - 9
		7 - 9

Front passenger switch

FRONT PASSENGER SWITCH

Window Lock Switch Condition	Power Window Switch Condition	Tester Connection	Specified Condition
OFF	UP	1 - 15	Below 1Ω
		3 - 15
		6 - 18
		7 - 18
	OFF	1 - 15
		3 - 15
		1 - 18
		3 - 18
	DOWN	1 - 18
		3 - 18
		6 - 15
		7 - 15
ON	UP	6 - 18
	UP	7 - 18
	OFF	15 - 18
	DOWN	6 - 15
	DOWN	7 - 15

Rear LH switch

REAR LH SWITCH

Window Lock Switch Condition	Power Window Switch Condition	Tester Connection	Specified Condition
OFF	UP	1 - 13	Below 1Ω
		3 - 13
		6 - 12
		7 - 12
	OFF	1 - 12
		3 - 12
		1 - 13
		3 - 13
	DOWN	1 - 12
		3 - 12
		6 - 13
		7 - 13
ON	UP	6 - 12
	UP	7 - 12
	OFF	12 - 13
	DOWN	6 - 13
	DOWN	7 - 13

Rear RH switch

REAR RH SWITCH

Window Lock Switch Condition	Power Window Switch Condition	Tester Connection	Specified Condition
OFF	UP	1 - 16	Below 1Ω
		3 - 16
		6 - 10
		7 - 10
	OFF	1 - 10
		3 - 10
		1 - 16
		3 - 16
	DOWN	1 - 10
		3 - 10
		6 - 16
		7 - 16
ON	UP	6 - 10
	UP	7 - 10
	OFF	10 - 16
	DOWN	6 - 16
	DOWN	7 - 16

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

Apply battery voltage to the master switch terminal, and check the AUTO lamp.

Standard:

BATTERY VOLTAGE STANDARD

Measurement Condition	Specified Condition
Battery positive (+) --> Terminal 6 Battery negative (-) --> Terminal 3	AUTO lamp illuminates

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

Fig 3: Applying Battery Voltage To Master Switch Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT POWER WINDOW REGULATOR SWITCH ASSY

Check the resistance between each terminal of the connector when the switch is operated.

Standard:

RESISTANCE STANDARD

Switch Condition	Tester Connection	Specified Condition
UP	1 - 2	Below 1Ω
UP	3 - 4
OFF	1 - 2
OFF	3 - 5
DOWN	1 - 4
DOWN	3 - 5

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

Fig 4: Inspecting Power Window Regulator

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT POWER WINDOW REGULATOR MOTOR ASSY LH (DRIVER SIDE)

Check operation of the regulator motor.

Apply battery voltage to the motor terminals.

Check that the motor rotates smoothly.

Standard:

REGULATOR MOTOR STANDARD

Measurement Condition	Specified Condition
Battery positive (+) --> Terminal 5 Battery negative (-) --> Terminal 4	Motor gear rotates clockwise
Battery positive (+) --> Terminal 4 Battery negative (-) --> Terminal 5	Motor gear rotates counterclockwise

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

Fig 5: Inspecting Power Window Regulator Motor Assy LH

Check operation of the PTC inside the regulator motor.
NOTE: The work must foe performed with the power window regulator and door glass installed in the vehicle.
1. Set an electrical tester DC 400 A probe to the wire harness of terminal 4 or 5.
  NOTE: Match the arrow mark of the probe with the current direction.
2. Fully close the door glass by operating the power window switch and keep the door glass there for approx. 60 seconds.
3. Try to operate the power window past the fully closed position using the power window switch and measure the time until the electrical current changes into 1 A from 16 to 34 A (Inspection of current shut-off)
  Standard: 4 to 90 seconds
4. Check that the door glass goes down when the power window regulator switch is pushed DOWN.
  If the result is not as specified, replace the motor assy.

INSPECT POWER WINDOW REGULATOR MOTOR ASSY RH (FRONT PASSENGER SIDE)

Check operation of the regulator motor.

Apply battery voltage to the motor terminals.

Check that the motor rotates smoothly.

Standard:

REGULATOR MOTOR STANDARD

Measurement Condition	Specified Condition
Battery positive (+) --> Terminal 4 Battery negative (-) --> Terminal 5	Motor gear rotates clockwise
Battery positive (+) --> Terminal 5 Battery negative (-) --> Terminal 4	Motor gear rotates counterclockwise

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

Fig 6: Inspecting Power Window Regulator Motor Assy RH

Check operation of the PTC inside the regulator motor.
NOTE: The work must be performed with the power window regulator and door glass installed to the vehicle.