alternator
10

Asked by Jerry Nov 09, 2019 at 08:04 PM about the 2000 Ford F-150 XLT Extended Cab SB

Question type: Car Customization

Which wire from or to the alternator is hot only when the engine is running?

1 Answer
10

Jerry answered 5 years ago

I guess I will have to wait for warmer weather and start probing the wires to find one that is ONLY hot while the alternator is spinning. I want to use this for a trigger to a relay to turn on the fog lights.

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