Del Sol Si VTEC L4-1590cc 1.6L DOHC (VTEC) MFI (1997)
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Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
NOTE: Bleed air from the cooling system after installing the engine coolant temperature (ECT) switch.
1. Remove the ECT switch from the thermostat housing.
Engine Coolant Temperature (ECT) Switch Test
2. Suspend the ECT switch in a container of coolant as shown.
3. Heat the coolant, and check its temperature with a thermometer.
Engine Coolant Temperature (ECT) Switch Test
4. Check for continuity between the A and B terminals according to the table.
