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.
High Operation
In the High position, the windshield wiper/washer switch supplies voltage to both the Wiper 1 and Wiper 2 relay coils. This energizes both relays and allows battery voltage from the Wiper 1 relay switched output to the switched input of the Wiper 2 relay through its contacts and out the switched output of the relay to the high speed circuit of the windshield wiper motor. The windshield wiper motor will operate at high speed.
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Use the Manual With the Right Hardware
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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.