Wipers Run At Low Speed Only Test: Corvette

Disconnect wiper motor module connector C3. Turn ignition switch to RUN or ACCESSORY position. Move wiper/washer switch to HI position. Connect a test light between C3 terminal "A" and ground. If test light is on, repair or replace wiper motor module. If test light is off, check for open circuit No. 92 (Purple wire). If circuit is okay, replace wiper/washer switch.