Engine - Coolant Temperature Sensor/Switch: Testing and Inspection

Engine Coolant Temperature Sensor Test:

With an ohm meter check resistance of sensor at specified temperatures.
TEMPERATURE: 20°C (68°F)
RESISTANCE: 2.1 - 2.7 K ohms

TEMPERATURE: 90°C) (4°F)
RESISTANCE: 0.24 - 0.26 K ohms

TEMPERATURE: 110°C (230°F)
RESISTANCE: 0.14 - 0.15 K ohms