Oil Pressure Sender: Testing and Inspection

1. Verify that the oil pressure gauge needle moves to H when the engine is started.
2. Verify that the oil pressure gauge needle moves to L when the engine is stopped.
- If the oil pressure gauge needle does not move, inspect the oil pressure gauge and related wiring harness.
- If the oil pressure gauge and related wiring harness are normal, inspect the oil pressure.
- If the oil pressure is normal, replace the oil pressure switch.