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Old 10-02-2020, 08:15 AM
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johnta1 johnta1 is offline
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The wiper motor always has voltage when the key is on and the switch GROUNDS the motor. I thought I had it figured out by using a relay and grounding the relay with the wiper switch.
Can you draw a diagram how you wired it?

I think you are correct on the relay to use the grounding but I would use the ground at the wiper?
Probably have to use a separate power circuit to power the lights from relay.
Possibly a diode to keep feedback from keeping relay working?

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