Inspection Procedure

WARNING: This page is about a different car, the 2007 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT POWER WINDOW REGULATOR MOTOR

Remove the power window motor.

Fig 1: Identifying Power Window Regulator Motor Operation
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Apply battery voltage to the motor connector according to the table below.

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

Standard

VOLTAGE SPECIFICATION TABLE

Measurement Condition	Specified Condition
Battery positive (+) → Terminal 1 (D) Battery negative (-) → Terminal 2 (U)	Motor gear rotates counterclockwise
Battery positive (+) → Terminal 2 (U) Battery negative (-) → Terminal 1 (D)	Motor gear rotates clockwise

NG: REPLACE POWER WINDOW REGULATOR MOTOR

OK: Go to next step.

CHECK WIRE HARNESS (WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK SWITCH)

Disconnect the P19 and P24 connectors.

Fig 2: Identifying P19 & P24 Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in the table below.

Standard resistance

STANDARD VOLTAGE SPECIFICATION TABLE

Tester Connection	Condition	Specified Condition
P19-1 (DN) - P24-1 (D)	Always	Below 1 Ω
P19-6 (UP) - P24-2 (U)	Always	Below 1 Ω
P19-1 (DN) - Body ground	Always	10 kΩ or higher
P19-6 (UP) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE