Df049: Renault

The Engine Control Unit (ECU) or Climate Control module detects that the signal from the A/C refrigerant pressure sensor is out of range (too high, too low, or an open circuit).

For the air conditioning system:

A: Yes. If the A/C system pressure drops below 2 bar, the ECU may interpret this as a sensor circuit fault. Always check refrigerant pressure before replacing the sensor. df049 renault