A/C Is Always On Or A/C Compressor Runs Continuously: Notes

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY (SKYACTIV-G) DESCRIPTION AND POSSIBLE CAUSE

Troubleshooting item	A/C is always on or A/C compressor runs continuously
Description	A/C compressor magnetic clutch does not disengage.
Possible cause	PCM, body control module (BCM) or dash-electrical supply unit DTC is stored Short to power supply in magnetic clutch power supply circuit Magnetic clutch engagement is stuck Climate control unit malfunction (Climate control unit always transmits A/C request signal) A/C relay is stuck closed Short to ground in A/C relay control circuit
Courtesy of MAZDA MOTORS CORP.