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Anyway to get around the ECM to control the A/C

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AllBoostNoJuice

15+ Year Contributor
65
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Jun 23, 2004
Pittsburgh, Pennsylvania
After an extensive diagnosis period I have come to the conclusion that my ECM is not giving a ground signal to any of the a/c related relays, and therefore I have no a/c. Since I do not have the money to spend on a new ECM, and even if I did I wouldn't waste it on the A/C, I was wondering if there is anyway to get around the ECM to run the a/c manually.
 
Not safely. The computer monitors a/c pressures in order to turn on the cooling fans, cycle the a/c compressor and also shuts off the a/c system under a high to full throttle engagement.

Shutting it off for acceleration isn't really a big deal. We could figure out a way to do that. But in order to control it for pressures... you'd need a set of a/c gauges inside the car to monitor pressures. Kind of an expensive and dangerous way to deal with the problem.
Doug
 
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