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Resistance Test

Disconnect 2-wire connector from coolant temperature sensor and measure resistance between 2 sensor terminals. Resistance should be as specified in COOLANT TEMPERATURE (TW) SENSOR RESISTANCE  table. Replace sensor if resistance is not as specified.

COOLANT TEMPERATURE (TW) SENSOR RESISTANCE (1)

Temperature - °F (°C) Resistance (Ohms)
-4 (-20) 15,000-18,000
68 (20) 1,000-4,000
176 (80) 200-400
(1) Measure resistance across sensor terminals.