1.Engine Coolant Temperature Sensor Wiring Harness Plug 2. Engine Coolant Temperature Sensor Retainer Clamp 3. Engine Coolant Temperature Sensor Function of Coolant Temperature Sensor: The coolant temperature sensor, also known as the coolant temperature switch, is an engine management system sensor that is used to monitor the temperature of the engine's coolant. Most coolant temperature sensors operate using electrical resistance to measure the temperature of the coolant. .
