Test results

 

1

 

CLIMATE CONTROL SYSTEM GAS CHARGE CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

   

Check that the gas charge in the system is correct

 

Go to Step 2

 

Gas charge not correct

 

Restore the correct gas charge

 

2

 

LEAKAGE CHECK ON THE CLIMATE CONTROL SYSTEM CIRCUIT

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

   

With the engine running and the climate control system on (compressor button ON), check that the leak is by the system pipe housings or the seat for the drier filter or the pipe couplings on the evaporator assembly

 

Go to Step 3

 

Leakage identified on the climate control system circuit

 

Restore the seal of the circuit or, if necessary, replace the evaporator assembly

 

3

 

CLIMATE CONTROL SYSTEM O-RING CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

   

Withdraw the pipes from the compressor and make sure that the O-rings on the pipes are correctly positioned; specifically check whether there has been pinching

 

Go to Step 4

 

O-ring seal failure

 

Replace the O-rings and refit the pipes on the compressor

 

4

 

PIPES/EVAPORATOR/EXPANSION VALVE/COMPRESSOR CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

   

Check that the leakage is on other components of the cooling system, specifically other components/pipes of the cooling system, the evaporator or the compressor

 

End of diagnosis

 

Leakage detected on the examined components

 

Restore the seal of the components on which the leakage has been detected and, if necessary, replace them