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Home >> Mazda >> 2016 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting - Engine >> No. 24 A/C Is Always On Or A/C Compressor Runs Continuously >> Notes

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, instrument cluster or climate control unit DTC is stored
  • Short to power supply in wiring harness between A/C relay terminal C and magnetic clutch terminal A
  • 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 wiring harness between A/C relay terminal E and PCM terminal 2BB
G10946298