C 3500 Truck 2WD V8-6.6L DSL Turbo VIN 1 (2002)
Oil Pressure Sender: Description and Operation
ENGINE OIL PRESSURE GAGE
The IPC uses the engine oil pressure 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 Ohm. A sensor resistance of 1 Ohm will display as 0 psi (0
kPa) and a resistance of 88 Ohm 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.
