Engine Coolant Temperature (ECT) Sensor
WARNING: This page is about a different car, the 1995 Ford Pickup, 1995 Ford Econoline, 1995 Ford Club Wagon, and 1995 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Sensor requires a 5-volt reference signal during engine operation. With sensor disconnected, sensor may be checked by measuring resistance between sensor terminals. For specifications, see appropriate SENSOR RANGE CHARTS article.
SENSOR RANGE CHARTS - Pickup
SENSOR RANGE CHARTS - Van
For additional testing information and circuit testing of sensor, see CIRCUIT TEST DA in TESTS W/CODES - EEC-IV (4.9L) article.