Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK2000PARK AVENUE BASE, 3.8 KREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTWIPER/WASHER SYSTEMSWIPER SYSTEM AND WASHER SYSTEMSYMPTOM TESTSTEST 2: WIPERS OPERATE IN OFF POSITION
2000 Buick Park Avenue Base, 3.8 K
Test 2: Wipers Operate In Off Position
2000 Buick Park Avenue Base, 3.8 KSECTION Test 2: Wipers Operate In Off Position
- Turn ignition switch to RUN position. Cycle wiper switch through all positions, then to OFF position. Disconnect 3-pin wiper switch connector C202. If wipers do not operate, check for shorted circuit in pigtail to wiper switch. If wiring is okay, replace wiper/washer switch. See appropriate STEERING COLUMN SWITCHES article.
- If wipers do not stop operating, cycle ignition off, and then on. If wipers stop operating, replace wiper motor cover. See WIPER MOTOR COVER (CIRCUIT BOARD) under REMOVAL & INSTALLATION. If wipers are still operating, go to next step.
- Using DVOM, measure voltage between ground and 3-pin wiper switch connector C202 terminal B2 (Yellow wire). If less than one volt exists, go to step 5 . If one volt or more exists, go to next step.
- Reconnect 3-pin wiper switch connector C202. Disconnect wiper motor connector. Using DVOM, measure voltage between ground and wiper motor connector terminal "G" (Gray wire). See Figure . If less than one volt exists, replace wiper motor cover. See WIPER MOTOR COVER (CIRCUIT BOARD) under REMOVAL & INSTALLATION. If one volt or more exists, repair short to voltage in Gray wire between wiper motor connector terminal "G" and 3-pin wiper switch connector C202 terminal B3. See WIRING DIAGRAMS .
- Using DVOM, measure voltage between ground and 3-pin wiper switch connector C202 terminal B4 (Dark Blue wire). If less than one volt exists, go to step 7 . If one volt or more exists, go to next step.
- Reconnect 3-pin wiper switch connector. Disconnect wiper motor connector. Using DVOM, measure voltage between ground and wiper motor connector terminal "H" (Dark Blue wire). See Figure . If one volt or more exists, repair short to voltage in Dark Blue wire. See WIRING DIAGRAMS . If less than one volt exists, replace wiper motor cover. See WIPER MOTOR COVER (CIRCUIT BOARD) under REMOVAL & INSTALLATION.
- Reconnect 3-pin wiper switch connector C202. Disconnect wiper motor connector. Using DVOM, measure voltage between ground and wiper motor connector terminal "D" (Purple wire). See Figure . If battery voltage exists, repair short to battery voltage in Purple wire. If battery voltage does not exist, replace wiper motor cover. See WIPER MOTOR COVER (CIRCUIT BOARD) under REMOVAL & INSTALLATION.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.