No. 23 A/C Does Not Work Sufficiently: Notes
NO. 23 A/C DOES NOT WORK SUFFICIENTLY DESCRIPTION AND POSSIBLE CAUSE
| 23 |
A/C DOES NOT WORK SUFFICIENTLY |
| DESCRIPTION |
- A/C compressor magnetic clutch does not engage when A/C switch is turned on.
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| POSSIBLE CAUSE |
- Improper refrigerant charging amount
- Refrigerant pressure sensor malfunction
- Evaporator temperature sensor malfunction
- Instrument cluster malfunction (does not receive A/C request switch 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 the A/C request signal.)
- Communication error between instrument cluster and climate control unit
- Communication error between PCM and instrument cluster
- Poor ground of magnetic clutch
- Open the magnetic clutch
- A/C relay is stuck open.
- Seized A/C compressor
- Open circuit in wiring harness between A/C relay and PCM
- Open circuit in wiring harness between A/C relay and ignition switch (IG2)
- Open circuit in wiring harness between A/C relay and battery
- Open circuit in wiring harness between A/C relay and magnetic clutch
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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