Dynasty L4-153 2.5L SOHC VIN K TBI (1992)
Oil Pressure Warning Lamp/Indicator: Description and Operation
A warning lamp on the instrument panel is used in place of the conventional dash indicating gauge to warn the driver when oil pressure is low. The
warning lamp is wired in series with the ignition switch and the oil sending unit.
The oil pressure switch contains a diaphragm and contacts. When the ignition switch is turned to the On position, the warning lamp circuit is energized
and the circuit is completed through the closed contacts in the pressure switch. When the engine is started, build-up of oil pressure compresses the
diaphragm, opening the contacts, thereby breaking the circuit.
