INSPECT POWER WINDOW REGULATOR MOTOR ASSEMBLY

Inspect the regulator motor operation.

HINT:

The driver's side and rear RH regulator motors should be inspected in the same procedure.

The passenger's side and rear LH regulator motors should be inspected in the same procedure.

Check that the motor operates smoothly when battery positive voltage is applied to each terminal of the connector.

Fig 1: Inspecting Power Window Regulator Motor Operation

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard: Driver's side and rear RH side

MEASURING SPECIFIED CONDITION

Measurement Condition	Specified Condition
Battery positive (+) → Terminal 4 Battery negative (-) → Terminal 5	Clockwise toward driving axis
Battery positive (+) → Terminal 5 Battery negative (-) → Terminal 4	Counterclockwise toward driving axis

Front passenger's side and rear LH side

MEASURING SPECIFIED CONDITION

Measurement Condition	Specified Condition
Battery positive (+) → Terminal 5 Battery negative (-) → Terminal 4	Clockwise toward driving axis
Battery positive (+) → Terminal 4 Battery negative (-) → Terminal 5	Counterclockwise toward driving axis

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

Inspect the PTC operation inside the regulator motor.
NOTE: The inspection should be performed with the power window regulator and door glass installed to the vehicle.
1. Set a DC 400 A probe of the TOYOTA electrical tester to terminal 4 or 5 of the wire harness.
  NOTE: Match the arrow mark of the probe with the current direction.

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.

Safety Warning

Power Window Regulator Motor: Inspection