Engine Coolant Temperature lamp
- Disconnect the wiring connector (A) from the engine coolant temperature sender in the engine compartment.
- Turn the ignition switch ON. Check that the gauge needle indicates cool. Turn the ignition switch OFF.
- Connect a 12V, 3.4 watt test bulb between the harness side connector and ground.
- Turn the ignition switch ON.
- Verify that the test bulb flashes and that the indicator moves to HOT.
If operation is not as specified, replace the engine coolant temperature lamp. Then recheck the system.