Refrigerant Pressure Sensor
WARNING: This page is about a different car, the 2019 Nissan NV200. However, it is still accessible from the selected car via links, so may be relevant.
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.
 Courtesy of NISSAN NORTH AMERICA, INC.
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