Rear Window Wiper Motor Test
Rear Window Wiper Motor Test1. Open the hatch, and remove the hatch trim panel.
2. Disconnect the 4P connector (A) from the wiper motor (B).
3. Test the motor by connecting battery power to the No. 1 terminal and ground the No. 3 terminal of the wiper motor. The motor should run. If the motor does not run or fails to run smoothly, replace the motor.
4. Connect the battery power to the No. 1 terminal, and ground to the No. 2 and No. 3 terminals of the 4P connector. Then connect an analog voltmeter between the No. 1 (+) terminal and the No. 4 (ground) terminal. When the park switch contacts, the pointer should swing. If not, replace the motor.