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Home >> Mazda >> 2013 >> 6 i Touring Plus >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine Control System MZR 2.5] >> No.24 A/C Is Always On Or A/C Compressor Runs Continuously >> Notes
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No.24 A/C Is Always On Or A/C Compressor Runs Continuously: Notes

24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY
DESCRIPTION 
  • A/C compressor magnetic clutch does not disengage.
POSSIBLE CAUSE 
  • PCM or climate control unit DTC is stored.
  • Short to power supply in wiring harness between A/C relay and magnetic clutch
  • Magnetic clutch engagement is stuck.
  • A/C relay malfunction
  • Short to ground in wiring harness between A/C relay and PCM
  • Communication error between PCM and instrument cluster
  • Communication error between climate control unit and instrument cluster (Full-auto air conditioner)
  • Short to ground in wiring harness between climate control unit terminal 1L and instrument cluster terminal 1A (Manual air conditioner)
  • Climate control unit malfunction