No cool air comes out (A/C system does not operate)

Precautions: Precautions for Diagnosing Trouble · General safety (00)

Condition	Possible Cause	Action
No cool air comes out (A/C system does not operate)	Blown fuse	Check related fuses, and then check for short circuit to ground.
	Faulty A/C compressor relay	Check A/C compressor relay.
	Faulty auto A/C panel	Check auto A/C panel.
	Faulty BCM	Check BCM.
	Faulty ESP®	Check ESP® control module.
	Faulty ECM and its circuit	Check ECM.
	Faulty magnet clutch (petrol model)	Check magnet clutch.
	Faulty compressor pulley (diesel model)	Check compressor pulley.
	Faulty compressor ON/OFF valve (diesel model)	Check compressor ON/OFF valve.
	Loose or broken compressor drive belt (petrol model)	Check compressor drive belt.
	Loose or broken generator drive belt (diesel model)	Check generator drive belt.
	Faulty compressor	Check compressor.
	Faulty ECT sensor	Check ECT sensor. •M16A model:   •K14C model:   •D16AA model:
	No refrigerant	Check amount of refrigerant and system for leakage. Recover refrigerant, evacuate and charge A/C system.
	Faulty A/C refrigerant pressure sensor	Check A/C refrigerant pressure sensor.
	Faulty evaporator temperature sensor	Check evaporator temperature sensor.
	Faulty HVAC control module	Check HVAC control module.
	Faulty wiring or grounding	Repair wiring.