FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Oil Pressure Warning

With the ignition switch in ON or START, battery voltage is supplied to the low oil pressure indicator in the instrument cluster. The indicator is grounded through the oil pressure switch whenever the oil pressure is below 4 psi (29 kPa). The bulb lights to warn the driver.