2888418 - L12 CLIMATE CONTROL TOO COLD

The control unit operates the fan which sends air into the passenger compartment normally with the pre-set flows, but this air lowers the high temperature in the passenger compartment too much

		Results of the tests
1	THREE STAGE PRESSURE SWITCH CHECK	All OK	Problems met	Operation
	Check the three stage pressure switch See Test   5040BA  Check operation of three-stage pressure switch	Continue to Step 2	Pressure switch defective	Replace the pressure switch Op.   5040B14
			Connections not correct	Restore the connections with the engine management control unit See   E6021  COMPRESSOR ENGAGEMENT
2	SYSTEM PRESSURE CHECK	All OK	Problems met	Operation
	Check the system pressure: See Test   5040B  Check on operation of air conditioning system (pressures)	Continue to Step 3	High pressure does not increase or low pressure decreases too much: insufficient fluidHigh pressure continues to increase: too much fluid	Recharge the system: Op.   5040A10
3	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'