| POSSIBLE CAUSE |
- PCM, climate control unit, instrument cluster or multi information display 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 evaporator temperature sensor and climate control unit
- Instrument cluster malfunction (Does not receive A/C request signal from climate control unit or transmit it to PCM)
- Multi information display malfunction
- 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)
- A/C compressor malfunction
- Open circuit in wiring harness between A/C magnetic clutch terminal A and body ground
- A/C relay malfunction
- Open circuit in wiring harness between A/C relay and PCM terminal 1I
- Open circuit in wiring harness between ignition switch and A/C relay (vehicles without advanced keyless entry and push button start system)
- Open circuit in wiring harness between IG2 relay and A/C relay (vehicles with advanced keyless entry and push button start system)
- Open circuit in wiring harness between battery positive terminal and A/C relay
- Open circuit in wiring harness between A/C relay and A/C magnetic clutch
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