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Home >> Mazda >> 2009 >> 5 Sport, 2.3 L, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine L3) >> Engine Control System Operation Inspection [L3] >> A/C Cut-off Control System Inspection

A/C Cut-off Control System Inspection

  1. Start the engine.
  2. Turn the A/C switch and the fan switch on.
  3. Verify that the A/C compressor magnetic clutch actuates.
    • If it does not actuate, go to symptom troubleshooting "No.23 A/C does not work sufficiently".
  4. Fully open the throttle valve and verify that the A/C compressor magnetic clutch does not actuate for 2-5 s. 
    • If it actuates, inspect as follows:
      • A/C relay
      • Open or short to GND circuit in wiring harness and connectors (Ignition switch-A/C relay-PCM terminal 1l)
      • A/C related parts
      • APP1, APP2 PIDs
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