Quote:
Originally Posted by JWillis72
I agree it doesn't sound right but say everything is working. The computer is saying turn the compressor on but you can't see the signal at the compressor. They tested the wire between the compressor and the relay and it's fine.
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They need to test from the trigger wire. Relay to computer (ECM). That is what energizes the relay to pull the contacts down.
I have seen a burnt connector in the main harness cause a no start issue on the brake neutral safety switch circuit.