Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

CHECK WIRE HARNESS (POWER SOURCE)

Disconnect the P37 regulator switch connector.
Turn the ignition switch ON.

Check the voltage between the terminal 4 of the wire harness side connector and the body ground.

Standard:

TERMINAL SPECIFIED CONDITION

Terminal No.	Condition	Specified Condition
P37-4 - Body ground	Ignition switch ON	10 to 14 V

Fig 1: Identifying Regulator Switch Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (REGULATOR SWITCH - RELAY)
OK: GO TO NEXT STEP

INSPECT POWER WINDOW REGULATOR SWITCH ASSY (PASSENGER SIDE)

Remove the regulator switch.

Check the resistance between the switch terminals when the switch is operated, as shown in TERMINAL SPECIFIED CONDITION .

Standard:

TERMINAL SPECIFIED CONDITION

Terminal No.	Regulator Switch	Specified Condition
1 - 2, 3 - 4	UP	Below 1 Ω
1 - 2, 3 - 5	OFF
1 - 4, 3 - 5	DOWN

Fig 2: Identifying Regulator Switch Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE POWER WINDOW REGULATOR SWITCH ASSY (PASSENGER SIDE)
OK: GO TO NEXT STEP

CHECK WIRE HARNESS (REGULATOR SWITCH - MOTOR) (REGULATOR SWITCH - BODY GROUND)

Disconnect the P41 motor connector.

Check the resistance between the wire harness side connectors.

Standard:

TERMINAL SPECIFIED CONDITION

Terminal No.	Specified Condition
P37-1 (D) - P41 - 1	Below 1 Ω
P37-3 (U) - P41 - 2	Below 1 Ω

Check the resistance between the P37 regulator switch connector and body ground.

Standard:

TERMINAL SPECIFIED CONDITION

Terminal No.	Specified Condition
P37-1 (D) - Body ground	10 KΩ or higher
P37-3 (U) - Body ground	10 KΩ or higher

Fig 3: Identifying P41 Motor Connector Terminal

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: GO TO NEXT STEP

INSPECT POWER WINDOW REGULATOR MOTOR ASSY RH (PASSENGER SIDE)
1. Remove the motor (See OVERHAUL ).
2. Apply battery voltage to connector terminals 1 and 2.
3. Check that the motor smoothly rotates.
Fig 4: Checking Motor Smoothly Rotates
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2.

Standard:

Fig 5: Terminal Specified Condition Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPLACE POWER WINDOW REGULATOR MOTOR ASSY RH (PASSENGER SIDE)
2. OK: REPAIR OR REPLACE HARNESS AND CONNECTOR (MASTER SWITCH - REGULATOR SWITCH)