General Description

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

The A/C compressor operation is controlled by the Powertrain Control Module (PCM) for the following reasons:
^ Improves idle quality during compressor clutch engagement.
^ Improves Wide Open Throttle performance (WOT).
^ Provides A/C compressor protection from operation with incorrect refrigerant pressures.

For a description of the system and an explanation of the components used, refer to Heating and Air Conditioning.




The A/C electrical system consists of the following components:
^ A/C control head.
^ A/C refrigerant pressure sensor.
^ A/C compressor clutch.
^ A/C compressor clutch relay.
^ PCM.