Oil Pressure Sender: Testing and Inspection
OIL PRESSURE SWITCH1. If "OIL PRESSURE" indicating lamp lights when ignition switch is set to "ON" and goes out when engine is started and runs at idle, then everything is in order. If "OIL PRESSURE" lamp does not light when ignition switch is set to "ON" check switch, lamp and wiring.
2. If there is current flow when ignition switch is set to "ON" and if there is no current flow when engine is running at idle, switch is good.
If switch is good, check lamp and wiring.
3. Using 24 mm deep socket, tighten the switch to the specified torque.
NOTE: Do not tighten the oil pressure switch to the excessive torque.