Integra GS-R Coupe L4-1797cc 1.8L DOHC (VTEC) MFI (1997)
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Coolant Temperature Sensor / Switch HVAC: Testing and Inspection
Engine Coolant Temperature (ECT) Switch Test
ENGINE COOLANT TEMPERATURE SWITCH (ECT) / TEST
NOTE: Bleed air from the cooling system after installing the engine coolant temperature (ECT) switch.
1. Remove the ECT switch from the thermostat housing.
2. Suspend the ECT switch in a container of coolant as shown.
3. Heat the coolant and check engine coolant temperature with a thermometer.
4. Check the continuity between the A and B terminals according to the table:
