Oil Pressure Sender: Testing and Inspection

INSPECT LOW OIL PRESSURE WARNING SWITCH OPERATION
a. Check that continuity exists between the terminal and ground with the engine stopped.
b. Check that no continuity exists between the terminal and ground with the engine running.

HINT:
Oil pressure should be over 29 kPa (0.35 kgf/sq.cm, 4.3 psi)
If operation is not as specified, replace the switch.