No.24 A/C Is Always On Or A/C Compressor Runs Continuously: Notes

WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

NO.24 DESCRIPTION AND POSSIBLE CAUSE

24	A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY.
DESCRIPTION	The 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 between A/C switch and PCM Short to GND circuit between A/C relay and PCM A/C relay to magnetic clutch circuit shorted to battery power