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Re: Wiper switch
When testing & troubleshooting, keep in mind that the wiper switch is on the ground side of the circuit.
The stock wiper motor wiring used white, gray, and purple wires. AAW often uses stock wire colors as well but check with your instructions to see if the colors vary.
The wiper motor receives power via the white wire when the ignition is on. The switch grounds a gray wire to complete the circuit for running the motor on low speed. When moved to the high speed position, the switch opens up the gray wire circuit, and instead grounds the purple wire.
So check to make sure the switch is providing a ground on that purple wire when it's in the high speed position.
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