Refrigerant Pressure Sensor: Description

The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent to ECM, and ECM controls cooling fan system.

Fig 1: Locating Refrigerant Pressure Sensor

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Voltage To Pressure Graph

Courtesy of NISSAN MOTOR CO., U.S.A.