Generic
Type:
    Powertrain - Vehicle Speed, Idle Control, and Auxiliary Inputs - ISO/SAE Controlled
Description:
    A/C Refrigerant Pressure Sensor "A" Circuit Low

GM
Type:
    Powertrain - Vehicle Speed, Idle Control, and Auxiliary Inputs - ISO/SAE Controlled
Description:
    A/C Refrigerant Pressure Sensor Circuit Low Input
Cause:
    Engine running, A/C has been requested, then the PCM detected an A/C Pressure sensor signal that was less than 0.1v, conditions met for three seconds.