Corolla Wagon L4-107.5 1762cc 1.8L DOHC (7A-FE) (1993)
Oil Pressure Gauge: Testing and Inspection
1.
Disconnect connector from warning switch and ground terminal on wire harness side connector.
2.
Turn ignition switch to On position, then check warning light illuminates. If not, test bulb.
3.
Ensure there is continuity between terminal and ground with engine stopped.
4.
Ensure there is no continuity between terminal and ground with engine running.
5.
Oil pressure should be over 7.1 psi.