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Home >> Infiniti >> 2005 >> Q45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - System Testing >> Refrigerant Pressure Sensor >> Component Description

Component Description

The refrigerant pressure sensor is installed at the liquid tank 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
G02369857Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Refrigerant Pressure Sensor Characteristic Graph And Operation Diagram
G02369858Courtesy of NISSAN MOTOR CO., U.S.A.