Oil Pressure Indicator Light
- Turn ignition switch to "ON", but do not start engine. The indicator light should come on. Start engine and light should go out within seconds. To test oil pressure switch, turn ignition switch to "ON", but do not start engine.
- If indicator light does not come on, disconnect wire from oil pressure switch terminal and touch to ground. If light now comes on, oil pressure switch is defective. If light does not come on, check for bad bulb or open circuits to bulb.