Wipers Run At High Speed Only Test: Corvette
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 1991 Pontiac Grand Prix, 1991 Pontiac Grand Am, 1991 Pontiac Firebird, 1991 Pontiac Bonneville, and 1991 Pontiac 6000. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect wiper motor module connectors C2 and C3. Turn ignition switch to RUN or ACCESSORY position. Move wiper/washer switch to LO position. Connect test light between C2 terminal "C" and ground. If test light is off, check for open circuit No. 191 (Gray wire). If circuit is okay, replace wiper/washer switch.
- If test light is on, connect test light between C2 terminal "B" and ground. If test light is on again, reconnect C2. If test light is off, check for open circuit No. 97 (Light Blue wire). If circuit is okay, replace wiper/washer switch.
- Connect test light between C3 terminal "B" and ground. If test light is on, repair or replace wiper motor module. If test light is off, check for open circuit No. 191 (Gray wire). If circuit is okay, repair or replace wiper motor module.