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Baked my ACM circuit board (it didn't help)


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I just bought a 2013 Fusion. The radio doesn't work. Shows AM only, no sound out of the speakers. I've seen a few others with this issue and it's fixed by replacing the Audio Control Module (ACM).

 

I decided to try what I had seen on a F-150 forum where people were having ACM problems. I took the ACM apart down to the circuit board, put it on a piece of cardboard, then baked it in the oven a 175° for ten minutes. Then I upped the temperature to 385° for ten minutes. The idea is that this will cause bad solder joints to reflow and may fix the problem. The F-150 forum users had widely reported success with this "recipe".

 

I put it back together and re-installed. No improvement. I have ordered a new ACM from an LKQ seller on ebay. I checked my local pick-n-pull, but the only one I found was a -A model (no Sirius) and mine is a -BJ with Sirius. Might have compatibility issues. Plus it was all dirty inside the dash and made me think the car had flood damage, so I didn't bother to pull the radio.

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