CL L4-2156cc 2.2L SOHC F22B1 MFI (1997)
Radiator Cooling Fan Temperature Sensor / Switch: Testing and Inspection
Engine Coolant Temperature (ECT) Switch
ECT Switch Testing
WARNING: Removing the ECT switch while the engine is hot can cause the coolant to spray out, seriously scalding you. Always let the engine
and radiator cool down before removing the ECT switch.
NOTE: Bleed air from the cooling system after installing the ECT switch.
1. Remove ECT switch A from the thermostat cover and ECT switch B from the water outlet cover.
2. Suspend the ECT switch in a container of water as shown.
3. Heat the water and check the temperature with a thermometer.
CAUTION: Do not let the thermometer touch the bottom of hot container.
4. Measure the continuity between the A and B terminals according to the table.
