Temperature Gauge: Testing and Inspection

Inspection

Engine Coolant Temperature Gauge
1. Disconnect the wiring connector (A) from the engine coolant temperature sender in the engine compartment.
2. Connect a 12V, 3.4 wattages test bulb between the harness side connector 2 terminal and ground.
3. Turn the ignition switch ON.
4. Verify that the test bulb flashes and that the indicator moves to HOT position.
If operation is not as specified, replace the cluster (Engine coolant temperature gauge). Then recheck the system.





Engine Coolant Temperature Sender
1. Using an ohmmeter, measure the resistance between the terminal 2 and ground.




2. If the resistance value is not as shown in the table, replace the temperature sender.