acura Workshop Repair Guides

Acura (Honda) Workshop Service and Repair Manuals

Evaporator Case > < Engine Coolant Temperature (ECT) Switch A
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Coolant Temperature Sensor / Switch HVAC: Testing and Inspection
Non-Trouble Code Procedures

The Engine Coolant Temperature (ECT) sensor is a temperature dependent resistor (thermistor). The resistance of the thermistor decreases as the
engine coolant temperature increases.

Evaporator Case > < Engine Coolant Temperature (ECT) Switch A