On most new vehicles, the action of an ECT (engine coolant temperature)sensor can be monitored on a scan tool.

Name: On most new vehicles, the action of an ECT (engine coolant temperature)sensor can be monitored on a scan tool.
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The ECT sensor's data can typically be read on a scan tool, allowing technicians to monitor the engine's coolant temperature in real-time, which is a common feature on most new vehicles.

On Most New Vehicles, the Action of an ECT (Engine