Test 3: Wipers Operate At High Speed Only
WARNING: This page is about a different car, the 2000 Chevrolet Corvette and 1999 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect wiper/washer switch connector C219 located at base of steering column. Turn wiper/washer switch to LOW position. Using ohmmeter, check for continuity between wiper/washer switch connector C219, terminal "A" (Dark Green wire) and terminal "C" (Yellow wire). If continuity does not exist, replace wiper/washer switch. See STEERING COLUMN SWITCHES - CORVETTE article. If continuity exists, go to next step.
- Ensure wiper/washer switch is in LOW position. Using ohmmeter, check for continuity between wiper/washer switch connector C219, terminal "C" (Yellow wire) and terminal "B" (Gray wire). Resistance should be 23-25 k/ohms. If resistance is not as specified, replace wiper/washer switch. See STEERING COLUMN SWITCHES - CORVETTE article. If resistance is as specified, go to next step.
- Reconnect wiper/washer switch connector C219. Disconnect wiper motor connector. Turn ignition switch to RUN position. Ensure wiper/washer switch is in LOW position. Using DVOM connected to ground, measure voltage at wiper motor connector terminal "E" (Dark Green wire). See Figure . If voltage is 10-14 volts, go to next step. If voltage is not 10-14 volts, repair open in Dark Green wire between wiper/washer switch connector terminal "A" and wiper motor connector terminal "E". See WIRING DIAGRAMS .
- Ensure wiper/washer switch is in LOW position and ignition switch is in RUN position. Using DVOM connected to ground, measure voltage at wiper motor connector terminal "D" (Gray wire). See Figure . If voltage is not 10-14 volts, repair open in Gray wire between wiper/washer switch connector terminal "B" and wiper motor connector terminal "D". See WIRING DIAGRAMS . If voltage is 10-14 volts, replace wiper motor. See WIPER MOTOR under REMOVAL & INSTALLATION.