Engine Coolant Temperature (ECT) Sensor

Disconnect ECT sensor harness connector. Check resistance between ECT sensor terminals at temperatures specified. See ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE table.

ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE

Application

Temperature °F (°C)

Ohms

Impreza

⁽¹⁾

⁽¹⁾	See appropriate Diagnostic Trouble Code (DTC) in appropriate BASIC TESTING article. Since many computer-controlled and monitored components set a Diagnostic Trouble Code (DTC) if they malfunction, also perform procedures in appropriate TESTS W/CODES article.