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.
Washer System
The front and rear washer systems use the same washer reservoir and washer pump. The front and rear wiper motor modules each contain an integral washer relay. When the windshield and rear window washer relays are inactive, the washer relays supply a path to ground to the washer motor.
When the windshield wiper motor module receives a windshield wash signal from the multifunction switch, the windshield wiper motor module activates its integral windshield washer relay which sends voltage to the washer pump. The washer pump receives ground from the inactive rear window washer relay in the rear wiper motor module.
When the rear wiper motor module receives a rear window wash signal from the multifunction switch, the rear wiper motor module activates its integral rear window washer relay which sends voltage to the washer pump. The washer pump receives ground from the inactive windshield washer relay in the windshield wiper motor module.
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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.