Wiper Motor Test

Wiper Motor Test

Windshield

1. Remove the wiper arms Service and Repair and the cowl lid (A).






2. Disconnect the 4P connector (B) from the windshield wiper motor subharness.

3. Test the motor by connecting battery power to terminal No. 2 and ground terminal No. 3 of the wiper motor 4P connector. The motor should run at low speed. If the motor does not run, or fails to run smoothly, check the windshield wiper motor subharness. If the wire harness is OK, replace the motor.

4. Test the motor by connecting battery power to terminal No. 4 and ground terminal No. 3 of the wiper motor 4P connector. The motor should run at high speed. If the motor does not run, or fails to run smoothly, check the windshield wiper motor subharness. If the wire harness is OK, replace the motor.

5. Connect an analog ohmmeter to terminals No. 1 and No. 3, and run the motor at low speed (repeat step 3). The needle of the ohmmeter should pulse. If it does not, check for the windshield wiper motor subharness. If the wire harness is OK, replace the motor.

Rear Window

NOTE: If the rear window wiper malfunctions, and no DTCs are detected, test the rear window wiper motor as described below, and check for an open or high resistance in the ground circuit of the rear window wiper.

1. Open the hatch, and remove the hatch lower trim panel Interior Trim Removal / Installation - Hatch Areas.

2. Disconnect the 4P connector (A) from the wiper motor (B).





3. Test the motor by connecting battery power to terminal No. 1 and ground terminal No. 3 of the wiper motor. The motor should run. If the motor does not run or fails to run smoothly, replace the motor.

4. Connect an analog ohmmeter between rear window wiper motor 4P connector terminals No. 3 and No. 4 and run the motor (repeat step 3). The needle of the ohmmeter should pulse. If it does not, replace the motor.