General Description

The A/C compressor clutch is controlled by the Body Control Module (BCM). The BCM sends the A/C request to the Powertrain Control Module (PCM) via the Class 2 serial data circuit. This allows the PCM to manage idle quality, improve wide open throttle performance, and to protect the A/C system from excessively high and low pressures.

The PCM controlled air conditioning system uses a variable displacement compressor referred to as a V-5 compressor. The V-5 compressor meets the A/C requirements without cycling.