V50 L5-2.4L VIN 39 B5244S7 (2005)
A/C Pressure Sensor/Switch - Cooling Fan: Description and Operation
Air Conditioning (A/C) Compressor
The air conditioning (A/C) pressure sensor detects the pressure in the high-pressure side of the air conditioning (A/C) system. The sensor is linear. It is
grounded in the control module and supplied with a 5 Volt current from the control module. A linear signal (between 0 - 5 V depending on the pressure
in the air conditioning (A/C)) is transmitted to the control module. Low pressure produces low voltage, high pressure produces high voltage. The air
conditioning (A/C) pressure sensor is affected by the pressure in the high-pressure pipe of the air conditioning (A/C) system (narrow pipe).
The engine control module (ECM) can diagnose the air conditioning (A/C) pressure sensor. The sensor value can be read off using Vehicle Information
and Diagnostics Application (VIDA).
