3308678 - L12 CLIMATE CONTROL TOO COLD

The fan works properly and sends air into the interior compartment in accordance with the set flows, but this air reduces the temperature in the interior compartment too much.

		Results of the tests
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Check that there are no faults in the climate control control unit	Continue to Step 2	An error is detected in the control unit	Continue following the instructions for the diagnostic equipment
			Lack of dialogue with the control unit	Restore connection between climate control control unit and diagnostic connector ( See   E6020  AIR CONDITIONING )
			Specific software not available	Continue to Step 3
2	ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Using the diagnostic equipment (Examiner or other instruments) carry out the active diagnosis for the mixture motor	Continue to Step 4	Mixing motor connection faulty	Restore the connections ( See   E6020  AIR CONDITIONING ) Continue to Step 4
			Mixture motor faulty	Replace the mixture motor Op.   5040D77  Continue to Step 4
3	MIXTURE MOTOR CHECK	All OK	Problems met	Operation
	Check the operation of the mixture motor	Continue to Step 4	Mixing motor connection faulty	Restore the connections ( See   E6020  AIR CONDITIONING )
			Mixture motor faulty	Replace the mixture motor Op.   5040D77
4	4 STAGE PRESSURE SWITCH CHECK	All OK	Problems met	Operation
	Check the 4 stage pressure switch: See Test   5040BA  Check operation of four stage pressure switch	Continue to Step 5	Pressure switch defective	Replace the pressure switch Op.   5040B14
			Connections not correct	Restore the connections ( See   E6021  COMPRESSOR ENGAGEMENT )
5	CHECKING SYSTEM PRESSURE	All OK	Problems met	Operation
	Chec the system pressures: See Test   5040B  Check on operation of air conditioning system (pressures)	Continue to Step 6	High pressure does not increase or low pressure decreases too much: insufficient fluid	Re-pressurize the system: Op.   5040A10
			High pressure continues to increase: too much fluid	Re-pressurize the system: Op.   5040A10
6	HECK 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'