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

GM
Type:
    Powertrain - Vehicle Speed, Idle Control, and Auxiliary Inputs - ISO/SAE Controlled
Description:
    A/C Refrigerant Pressure Sensor Circuit Conditions
Cause:
    Engine running with A/C requested, then the PCM detected the A/C Refrigerant Pressure sensor input was less than 0.1v (9 psi) or more than 4.9v (472 psi), conditions met for 20 seconds.