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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Qr25DE >> Refrigerant Pressure Sensor >> Component Description
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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: Identifying Refrigerant Pressure Sensor Harness Connector
G00779587Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Identifying Pressure Sensor & Output Voltage Graph
G00779588Courtesy of NISSAN MOTOR CO., U.S.A.