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 MANUALSPONTIAC19836000 LE, 2D COUPE, 2.8 XREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTWIPER/WASHER SYSTEMSWIPER/WASHER SYSTEMS - FRONT ROUND WIPER MOTORTESTINGWIPER CIRCUITSTESTING MOTOR (OFF CAR)
1983 Pontiac 6000 LE, 2D Coupe, 2.8 X
Testing Motor (Off Car)
1983 Pontiac 6000 LE, 2D Coupe, 2.8 XSECTION Testing Motor (Off Car)
- If wiper is inoperative, check for open relay coil, circuit breaker open, series field open, open armature, brushes sticking, defective solder joints, or binding condition at relay latch arm.
- Motor will not shut off (rotates through 360°), check for relay coil grounding, relay latch spring disconnected or broken. Latch arm binding.
- Motor will not shut off (crank arm moves back and forth with a loud knock), check relay switch contacts shorting together, drive pawl spring disconnected. Motor shunt field open and operates only in high speed.
- If motor has only high speed, check for an open shunt field or a poor connection at terminal 3.
- If motor has low speed only, check for shunt field internal ground, shunt field lead to terminal board, Black wire grounded, or shorted armature.
- If motor has excessive speed in "HI", and "LO" speed is normal, check for an open high speed resistor or poor resistor ground.
- If motor stops at random and does not return to full park, check relay switch contacts. If motor operates intermittently, check for a defective circuit breaker, shorted armature or fields drawing excessive current causing circuit breaker to trip.
- If motor operates normal on bench, but occasionally fails on car, check for proper armature end play, gear assembly end play or poor wire connections.
RENDER: 1.0x
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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.