| POSSIBLE CAUSE |
- PCM, climate control unit or instrument cluster DTC is stored.
- Refrigerant pressure sensor malfunction
- Improper refrigerant charging amount
- Seized magnetic clutch
- 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.)
- 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.)
- Open or short circuit in wiring harness between climate control unit terminal 1L and instrument cluster terminal 1A (Manual air conditioner)
- Magnetic clutch malfunction
- Open circuit in wiring harness between magnetic clutch terminal A and body ground
- A/C relay malfunction
- Open or short circuit in wiring harness between A/C relay and PCM terminal 1W
- Open in wiring harness between ignition switch (IG2) /IG2 relay and A/C relay
- Open circuit in wiring harness between battery positive terminal and A/C relay
- Open circuit in wiring harness between A/C relay and magnetic clutch
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