No. 24 A/C Is Always On Or A/C Compressor Runs Continuously [MZI-3.7]: Notes

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DESCRIPTION AND POSSIBLE CAUSE

24	A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY
DESCRIPTION	A/C compressor magnetic clutch does not disengage
POSSIBLE CAUSE	A/C compressor magnetic clutch engagement is stuck A/C relay is stuck closed Short to GND in wiring harness between A/C relay and PCM Short circuit to battery power in A/C relay to magnetic clutch Climate control module malfunction (A/C switch signal stuck on.) Communication error between PCM and climate control module