Sonata V6-2.7L (2004)
Fuel Gauge: Testing and Inspection
Engine Coolant Temperature Gauge
ENGINE COOLANT TEMPERATURE GAUGE
1. Disconnect the wiring connector from the engine coolant temperature sender in the engine compartment.
2. Turn the ignition switch ON. Check that the gauge needle indicates cool. Turn the ignition switch OFF.
3. Connect a 12 V, 3.4 watt test bulb between the harness side connector and ground.
4. Turn the ignition switch ON.
5. Verify that the test bulb flashes and that the indicator moves to HOT.
If operation is not as specified, check all wiring before replacing the gauge. Then recheck the system.
