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Welcome, I'm Chris (aka Moose).
Can I get the year model?
Is the car overheating?
Does the fan come on when AC is used?
At the fan, confirm the black wire is ground. Confirm the light green/violet wire is power.
PCM connect pin 14 light blue wire should pulse power to the fan when the fan is being commanded to run.
Can you check those?
That connector you have shown me a picture of, it looks like a dummy plug because there wires to one side and a connector plugged up on the other side but no wires there.
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You cna not test the PCM to fan power wire with a volt meter nor test light, it pulses to fast for those to read. If the fan has power and ground on the wires I mentioned and the wire to the PCM the signal wire is not broken and has no continuity to power nor ground then the wire is not broken. A scope needs to be used to see if the PCM is commanding the fan on. If not then the PCM is bad.
A dealer can use there oscilloscope to test it but some other shops can do that as well.
When it comes to swapping pins there is no chart or book to say what will work in place of another. It is pretty much a try and and see thing but yes programming would be needed.
As long as you swap the keys as well it should work.
Hello Chris here again,
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