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Test 2: Wipers Will Not Turn Off

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.
  1. Turn ignition switch to RUN position. Turn wiper/washer switch to OFF position. Disconnect wiper/washer switch 6-pin connector C219 located at base of steering column. If wiper motor is still operating, go to next step. If wiper motor stops operating, check for short to battery voltage in Yellow wire between wiper motor connector terminal "B" and instrument panel electrical center. See WIRING DIAGRAMS  . If no faults are found, replace wiper/washer switch. See STEERING COLUMN SWITCHES - CORVETTE article.
  2. Disconnect wiper motor connector. Turn ignition switch to RUN position. Connect voltmeter between chassis ground and wiper/washer switch 6-pin connector C219, terminal "A" (Dark Green wire). If voltage is less than one volt, go to next step. If voltage is one volt or more, repair short to voltage in Dark Green wire between wiper/washer switch connector terminal "A" and wiper motor connector terminal "E". See WIRING DIAGRAMS  .
  3. Ensure wiper motor and wiper/washer switch connectors are disconnected. Ensure ignition switch is in RUN position. Using DVOM connected to ground, measure voltage at wiper/washer switch connector C219, terminal "B" (Gray wire). If voltage is one volt or more, repair short to battery voltage in Gray wire between wiper/washer switch connector terminal "B" and wiper motor connector terminal "D". See WIRING DIAGRAMS  . If voltage is less than one volt, go to next step.
  4. Ensure wiper motor and wiper/washer switch connectors are disconnected. Ensure ignition switch is in RUN position. Using DVOM connected to ground, measure voltage at wiper/washer switch connector C219, terminal "D" (Purple wire). If voltage is one volt or more, repair short to battery voltage in Purple wire between wiper/washer switch connector terminal "D" and wiper motor connector terminal "C". See WIRING DIAGRAMS  . If voltage is less than one volt, replace wiper motor. See WIPER MOTOR  under REMOVAL & INSTALLATION.
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