Wiper Motor Test
Wiper Motor TestWindshield
1. Open the hood. Remove the caps, nuts, and the windshield wiper arms.
NOTE: Carefully remove the wiper arms so that they do not touch the hood.
2. Remove the hood seal and cowl covers.
3. Disconnect engine compartment wire harness 5P connector C302 (A) from the windshield wiper subhamess C302 (B).
4. Test the motor by connecting battery power to the No. 3 terminal and ground to the No. 2 terminal of the windshield wiper motor subharness 5P connector C302 (B). The motor should run at low speed.
5. Test the motor by connecting battery power to the No. 5 terminal and ground to the No. 2 terminal of the windshield wiper motor subharness 5P connector C302 (B). The motor should run at high speed.
6. Connect an analog ohmmeter to the No. 4 and No. 2 terminals, and run the motor at low or high speed. The needle of the ohmmeter should pulse.
7. If there is no pulse, or the motor does not run, or fails to run smoothly, check for continuity of the windshield wiper motor subharness, if the wire harness is OK, replace the motor.
Rear Window
1. Open the tailgate, and remove the tailgate lower 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 an analog ohmmeter to the No. 2 and No. 3 terminals, and run the motor. The needle of the ohmmeter should pulse. If it does not, replace the motor.