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

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
G13556286Courtesy of MAZDA MOTORS CORP.