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Re: A/C compressor does not engage
Posted to Technical Discussion Forum on 5/20/2009 4 Replies

Hi Jeff,

On that car the HVAC control head sends a request to the BCM, which then relays it to the PCM via Class 2 data. Since the PCM is showing NO for A/C Request, either the BCM is not receiving the signal from control head, or is not communicating such w... Login to read more.

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