Oil Pressure Gauge

Disconnect oil pressure sensor harness connector. Connect Gauge Tester (49 0839 285) to oil pressure sensor harness connector wire. Turn ignition switch to RUN position. Set tester to infinity. Oil pressure gauge should read on or below "L" (low). Short oil pressure sensor harness connector wire to ground. Oil pressure gauge should read above mid scale. If oil pressure gauge functions as specified, replace oil pressure switch. If oil pressure gauge does not function as specified, replace oil pressure gauge.