A/C Electric Compressor
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The ACCM is an integral part of the A/C electric compressor and can not be removed from or serviced separately. The ACCM has both low voltage and high voltage electrical connections. The ACCM also requires high voltage system operating voltage between 140 and 350 volts. The ACCM has a single ground circuit located in the engine compartment wiring harness. Excessive resistance or an open in one or more of these circuits, a discharged battery or an inoperative charging system results in the ACCM setting a DTC.