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Home >> Lincoln >> 1998 >> Mark VIII Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> A/C-Heater System >> Operation >> Variable Load Control Module (VLCM)

Variable Load Control Module (VLCM)

VLCM controls fan operation when required and will increase or decrease fan speed depending on refrigerant system high-side pressure. VLCM can also turn A/C on or off if A/C cycling switch indicates system high-side pressure exceeds 425 psi (29.9 kg/cm2 ). VLCM is located on right front wheelwell and connects to PCM through multiplex communications network.

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