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Thread: LS1b PCM, A/C Type

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  1. 07-16-2013 #1
    Lextech
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    LS1b PCM, A/C Type

    Hey Guys. In Tunercat > Constants > Type of A/C on Vehicle. Does anyone know how many types there are, and what does each type correspond to? Pin C2-17 is the A/C request into the PCM from the HVAC controller and C2-18 is the output for A/C Compressor Clutch Relay Supply Voltage. I am thinking this would be good to know for retrofit and custom applications.

    Jeff
    Last edited by Lextech; 07-16-2013 at 05:06 AM.
    98 GMC RCSB, 5.0, 4L80e, Moser M60, 4.10 gear, Homemade twin turbo w/Junkyard T3 turbos, 24x CNP, 12200411 PCM.
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