| DESCRIPTION |
- A/C compressor magnetic clutch does not engage when A/C switch is turned on.
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| POSSIBLE CAUSE |
- PCM, instrument cluster or climate control unit DTC is stored
- Refrigerant pressure sensor malfunction
- Improper refrigerant charging amount
- Seized A/C compressor
- Evaporator temperature sensor malfunction
- Open or short circuit in wiring harness between the following terminals:
- Evaporator temperature sensor terminal B-Instrument cluster terminal 2O (with manual air conditioner system (4-speed type airflow volume control dial))
- Evaporator temperature sensor terminal A-Instrument cluster terminal 2P (with manual air conditioner system (4-speed type airflow volume control dial))
- Evaporator temperature sensor terminal B-Climate control unit terminal G (with manual air conditioner system (7-speed type airflow volume control dial))
- Evaporator temperature sensor terminal A-Climate control unit terminal J (with manual air conditioner system (7-speed type airflow volume control dial))
- Evaporator temperature sensor terminal B-Climate control unit terminal J (with full-auto air conditioner system (type A (VIN serial No. 100001-)))
- Evaporator temperature sensor terminal A-Climate control unit terminal E (with full-auto air conditioner system (type A (VIN serial No. 100001-)))
- Evaporator temperature sensor terminal B-Climate control unit terminal R (with full-auto air conditioner system (type B (VIN serial No. 300001-)))
- Evaporator temperature sensor terminal A-Climate control unit terminal D (with full-auto air conditioner system (type B (VIN serial No. 300001-)))
- Instrument cluster malfunction (Does not receive A/C request signal from climate control unit or transmit it to PCM)
- Climate control unit malfunction (A/C switch malfunction or climate control unit does not determine A/C request or transmit A/C request signal)
- Open circuit in wiring harness between magnetic clutch and body ground
- A/C relay stuck open
- Open circuit in wiring harness between the following terminals:
- IG1 relay terminal C-A/C relay terminal A
- Battery positive terminal-A/C relay terminal C
- A/C relay terminal E-PCM terminal 2AF
- A/C relay terminal D-Magnetic clutch terminal A
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 Courtesy of MAZDA MOTORS CORP.
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 Courtesy of MAZDA MOTORS CORP.
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