No. 23 A/C Does Not Work Sufficiently: Notes

A/C DOES NOT WORK SUFFICIENTLY

DESCRIPTION

A/C compressor magnetic clutch does not engage when the A/C switch is turned on.

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) ⁽¹⁾/IG2 relay ⁽²⁾ 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

⁽¹⁾	without advanced keyless entry and push button start system

⁽²⁾	with advanced keyless entry and push button start system