K 1500 Yukon Denali AWD V8-6.0L VIN U (2002)
Oil Pressure Gauge: Description and Operation
ENGINE OIL PRESSURE GAGE
The IPC uses the engine oil sensor signal to determine the engine oil pressure. The oil pressure sensor signal circuit is hard-wired to the IPC. The engine
oil pressure sensor signal to the IPC is a variable resistance ranging from 0-90 Ohms. The sensor resistance is used to drive the engine oil pressure gage.
A sensor resistance of 1 Ohm will display as 0 kPa (0 psi) and a resistance of 88 Ohms will display as 550 kPa (80 psi). The IPC monitors the oil
pressure sensor signal circuit in order to decide when the oil pressure is too low. The Check Engine Oil Pressure indicator will be displayed in the
message center if the IPC detects a low engine oil pressure.
