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Re: HVAC control module 2007 ram
Posted to HVAC Forum on 6/4/2020 10 Replies

Keep in mind that the PCM might be shutting down the HVAC has a control measure. Usually when the PCM has an issue, it will shut accessory circuits/ systems down via CAN bus. Even a bad P/S switch on the steering pump can shut an AC down.

Address the PCM cod... Login to read more.

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