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International Automotive Technicians Network
Re: HVAC Controller No Response
Posted to Technical Discussion Forum on 7/31/2024

I could be mistaken, but I would suggest going into the ECM/PCM data, and see if the AC request is indicated. There should also be a high side pressure data PID, and compressor command PID as well. See if the compressor commands are indicated, the pressure is ... Login to read more.