DTC B11FF-84: A/C Refrigerant Pressure - Signal below allowable range: Action
- Using the manufacturer approved diagnostic system, datalogger test and review Climate control system/Air conditioning/External ambient temperature. If the external ambient temperature is < 5° C, this DTC should be ignored and cleared. If the external ambient temperature shows > 5°C, test the refrigerant system using a suitable charging station
- Install a new refrigerant pressure sensor as necessary
- Using the manufacturer approved diagnostic system, clear the DTCs and retest. If the fault persists, install a new automatic temperature control module