Wipers Completely Inoperative
- Turn ignition switch to "ON" position and wiper switch to "HIGH". Ground a 12 volt test lamp and touch probe to wiper terminal 1. If lamp lights, proceed to next step. If lamp does not light, check for a blown fuse. If fuse is okay, repair open in feed circuit between fuse block and wiper motor. If fuse is blown, replace fuse and check for short in wire or for high amperage draw of wiper motor.
- With wiper switch in "LOW", connect a jumper wire from ground to wiper motor housing. If wipers run, repair open in ground strap. If wipers do not run, problem is in internal mechanisms of wiper motor.