K 3500 Truck 4WD V8-6.6L DSL Turbo VIN 1 (2001)
Oil Pressure Gauge: Description and Operation
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. A sensor resistance of 1 Ohms will display as 0 psi (0 kPa) and a
resistance of 88 Ohms will display as 80 psi (550 kPa). The Check Engine Oil Pressure indicator will be displayed in the message center if the IPC
detects a low engine oil pressure.
