Test the motor in each direction by connecting 12 volt battery power and ground to the connector (A) according to the table. When the motor stops running, disconnect 12 volt battery power immediately.

If the motor does not run or fails to run smoothly, remove the front passenger's door regulator, then go to step 3.

Test the front passenger's power window motor (A) by connecting 12 volt battery power and ground according to the table. When the motor stops running, disconnect 12 volt battery power immediately.

If the motor does not run or fails to run smoothly, the front passenger's power window motor is faulty; replace the front passenger's door regulator.

If the motor runs smoothly, replace the wire harnesses or adjust the front passenger's door glass.