Motor Won't Run In Any Switch Position

1. Check for blown fuse.
2. If fuse is defective, replace and recheck motor operation in all switch positions.
3. If motor is still inoperative and fuse does not blow, place switch in Low speed position and proceed to next step.
4. If replacement fuse blows, disconnect motor wiring and replace fuse.
5. Place switch in Low speed position.
6. Listen for motor operation sound. If motor sound is not heard, proceed to step 9.
7. If motor sound is heard, check motor output shaft.
8. If shaft is not turning, replace motor assembly. If motor shaft is turning, check for proper connection of drive link or linkage.
9. Connect a voltmeter between motor terminal 3 and ground.
10. If no or little voltage is present, move negative test lead to battery ground terminal.
11. If an increase in voltage is noticed, problem is a bad ground circuit. Ensure motor mounting is free of paint and all attaching bolts are tight.
12. If there is still no indication of voltage, problem is an open circuit in wiring harness or wiper switch.
13. If no more than 3 volt increase in voltage is observed, problem is a faulty motor assembly.
14. Disconnect motor wiring connector and replace fuse.
15. If fuse does not blow, motor is defective.
16. If fuse blows, switch or wiring is at fault.