Wiring diagram request - EATC/Blower/resistor; 2009 Town Car

kdv

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Having a real head scratcher of an issue on my '09 Town Car, have a mechanic at work willing to give it a look, but would like a wiring diagram. So if anybody has one, or knows where I can find one, I'd be appreciative.

My car's blower motor won't turn on.

Engine temp is fine, heat 'oozes' from defrost/floor/vents. Blend doors work fine. Fuse and relay checked (swapped with known working systems), new resistor. Even switched with a known working blower and EATC head unit from the wife's '07 Town Car. The '09 blower and EATC head unit works on the '07 (did not switch resistor, cause what a pain in the arse to get out).

Getting chilly here, going to need that to work soon.
 
Writing a reply (to myself!) due to finding the problem:

Had a mechanic at my work take a look at it, with proper tools he tracked it down pretty quick.

The ground wire under the relay (in the big fuse box under the hood) had corroded off.

Quick fix wrapped a wire around the ground post of the relay, reinserted it, and connected other end of wire to negative terminal of battery.

Will fix properly - eventually. But I have a blower motor again.

Hopefully this helps somebody in the future!
 
Writing a reply (to myself!) due to finding the problem:

Had a mechanic at my work take a look at it, with proper tools he tracked it down pretty quick.

The ground wire under the relay (in the big fuse box under the hood) had corroded off.

Quick fix wrapped a wire around the ground post of the relay, reinserted it, and connected other end of wire to negative terminal of battery.

Will fix properly - eventually. But I have a blower motor again.

Hopefully this helps somebody in the future!
Glad you found the issue. Thanks for giving us an update (y)
 
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