Wiper Motor Runs Slow

1. Remove wiper arms and cowl panel.
2. Disconnect wiper linkage and wiring connector from motor.

Fig.82 Wiper Motor Current Test:

3. Connect a suitable ammeter between motor and battery positive terminal.
4. With motor running, if current draw is greater than six amps, check for binding in shafts and linkage.

Fig.8 Wiper System Wiring Diagram (Part 1 of 2):

Fig.8 Wiper System Wiring Diagram (Part 2 of 2):

5. With motor running, if current draw is less than six amps, use a suitable ohmmeter and check wiper circuits for short to ground.