Q: How to check and replace the Coolant Temperature Sensor on a Dodge Charger?
A: The coolant temperature indicator system includes a warning light or temperature gauge on the dash and a coolant temperature sending unit on the engine. The ECT sensor functions as the sending unit and provides information to the PCM. If an overheating indication occurs, check the coolant level and wiring harness. When the ignition switch is turned to START, the indicator light should come on.