Power Window Control System: Inspection

POWER WINDOW SYSTEM CIRCUIT

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

INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY

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

Fig 2: Identifying Power Window Regulator Master Switch Assy

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard: Driver switch

TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION

Window Lock Switch Condition	Power Window Switch Condition	Tester Connection	Specified Condition
Always (ON/OFF)	UP	1 - 9	Below 1 Ω
		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

TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION

Window Lock Switch Condition	Power Window Switch Condition	Tester Connection	Specified Condition
OFF	UP	1 - 15	Below 1 Ω
		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

TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION

Window Lock Switch Condition	Power Window Switch Condition	Tester Connection	Specified Condition
OFF	UP	1 - 13	Below 1 Ω
		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

TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION

Window Lock Switch Condition	Power Window Switch Condition	Tester Connection	Specified Condition
OFF	UP	1 - 16	Below 1 Ω
		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 terminals and check the AUTO lamp.

Standard:

MEASUREMENT CONDITION AND SPECIFIED CONDITION SPECIFICATION

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 Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT POWER WINDOW REGULATOR SWITCH ASSY

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

Standard:

TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION

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

Fig 4: Identifying Power Window Regulator Switch Assy Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

INSPECT POWER WINDOW REGULATOR MOTOR

Check operation of the regulator motor.

HINT:

The driver side and rear RH regulator motors should be inspected using the same procedure.

The passenger side and rear LH regulator motors should be inspected using the same procedure.

Apply battery voltage to the motor terminals.

Check that the motor operates smoothly.

Standard: Driver side and rear RH

MEASUREMENT CONDITION AND SPECIFIED CONDITION SPECIFICATION

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

Front passenger side and rear LH

MEASUREMENT CONDITION AND SPECIFIED CONDITION SPECIFICATION

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

Fig 5: Identifying Power Window Regulator Motor

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

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.
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.
  
  Fig 6: Fully Close Door Glass By Operating Power Window Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Fully close the door glass by operating the power window switch and wait approximately 60 seconds.
3. Operate the power window switch to the close direction again. 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.
  
  Fig 7: Identifying Door Glass Goes Down By Operating Power Window Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT RELAY (POWER)

Remove the POWER relay from the instrument panel J/B.

Measure the resistance between each terminal of the relay.

Standard:

TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION

Tester Connection	Specified Condition
3 - 5	10 kΩ or higher
3 - 5	Below 1 Ω (When battery voltage is applied to terminals 1 and 2)

Fig 8: Measuring Resistance Between Each Terminal Of Relay

If the result is not as specified, replace the relay.