Six problems related to windshield wiper/washer switch have been reported for the 1999 Ford Explorer. The most recently reported issues are listed below.
The windshield wipers will start on their own. When it happens, they will continue intermittently until I turn the wipers on high then turn them back off. It is extremely intermittent, sometimes going months before it will do it. Has been doing this for about a year.
This is an intermittent problem where the windshield wipers engage without being prompted to do so and for no apparent reason.
Rear windshield wiper switch/motor failed from time to time.
After using window washer, wipers come on when using signals. Happens all the time.
While driving in rainy weather conditions windshield wipers become inoperable. Dealer states that the problem occures due a malfunction within the module switch. Ford unable to repair problem and will not allow dealer to replace the switch.
Windshield wipers randomly activate when switch is in off position.