Oil Pressure Sender: Testing and Inspection
Engine Oil Pressure Switch Test
1. Remove the wire (A) from the oil pressure switch (B).
2. Check for continuity between the positive terminal (C) and the engine (ground). There should be continuity with the engine stopped. There should be no continuity with the engine running.
3. If the switch fails to operate, check the engine oil level. If the engine oil level is OK, check the engine oil pressure. Testing and Inspection