Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Inspection Procedure
- INSPECT POWER WINDOW REGULATOR MOTOR
- Remove the power window motor.
- Apply battery voltage to the motor connector according to POWER WINDOW REGULATOR MOTOR
.NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2.
Standard
POWER WINDOW REGULATOR MOTORMeasurement Condition Specified Condition Battery positive (+) --> Terminal 2 (U)
Battery negative (-) --> Terminal 1 (D)Motor gear rotates clockwise Battery positive (+) --> Terminal 1 (D)
Battery negative (-) --> Terminal 2 (U)Motor gear rotates counterclockwise Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE POWER WINDOW REGULATOR MOTOR
OK: Go to next step
- CHECK WIRE HARNESS (WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK MASTER SWITCH)
- Disconnect the M7 and M3 connectors.
- Measure the resistance according to the value(s) in WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK MASTER SWITCH
.
Resistance
WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK MASTER SWITCHTester Connection Condition Specified Condition M7-1 (UP) - M3-2 (U) Always Below 1 ohms M7-11 (DN) - M3-1 (D) Always Below 1 ohms M7-1 (UP) - Body ground Always 10 k ohms or higher M7-11 (DN) - Body ground Always 10 k ohms or higher
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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