FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Motor Runs at High or Low Speed Only

Motor Will Run At High Speed, But Not Move At Low Speed & Motor Will Run At Low Speed, But Not Move at High Speed
Note: Whenever a wiper motor malfunction occurs, ensure wiper motor wire harness is properly connected before starting with normal diagnosis and repair procedures.

1. Disconnect motor connector. If motor will not run on low speed, connect a jumper wire between battery positive and terminal three of motor connector. Connect a second jumper between battery ground and terminal four of motor connector.
2. If motor does not run, replace motor. If motor runs proceed to step 4.
3. If motor will not run at high speed, connect a jumper wire between battery positive terminal and terminal two. Connect a second jumper wire between ground and terminal four of motor connector.
4. If wipers will not run at low speed use a suitable ohmmeter, check for open circuit. Check between terminal E of HI-LO wiper relay to terminal three of wiper motor wire harness connector for continuity. If satisfactory proceed to step 6, if not repair as necessary.
5. If wiper will not run at high speed, using a suitable ohmmeter, check for an open circuit. Check between terminal D of HI-LO wiper relay and terminal two of wiper motor wire harness connector for continuity. If satisfactory proceed to next step. If not satisfactory repair as necessary.
6. Check for faulty HI-Lo wiper relay.