Accord SE Coupe L4-2156cc 2.2L SOHC MFI (1997)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
Engine Coolant Temperature (ECT) Switch Test
NOTE: Bleed air from the cooling system after installing the engine coolant temperature (ECT) switch.
1. Remove ECT switch A from the thermostat housing and ECT switch B from the thermostat cover.
2. Suspend each ECT switch in a container of water or engine oil as shown.
NOTE: The illustration shows ECT switch A.
3. Heat the water or engine oil, and check its temperature with a thermometer.
Engine Coolant Temperature (ECT) Switch Test
4. Check each ECT switch for continuity between the A and B terminals according to the table.
