A/C Compressor Control

A request from the IHKS/IHKA is passed via the K-Bus to the IKE and then over the CAN Bus to the EMS2000. The EMS2000 checks the signal from the A/C pressure transducer and if within range, activates the compressor relay. The EMS2000 signals the IHKS/IHKA that the compressor has been turned on.

As part of the compressor activation process, the EMS2000 slightly increases the idle speed to compensate for the increased engine load.