Oil Pressure Sensor
The engine control module (ECM) calculates the value from the oil pressure switch signal. The value is only relevant when the engine is running.
ON = the oil pressure switch circuit is closed, signal to the driver information module (DIM) via CAN for lit oil pressure warning lamp.
OFF = the oil pressure monitor's circuit is open, signal to the driver information module (DIM) via CAN for oil pressure warning light not lit.