Component Inspection

WARNING: This page is about a different car, the 2011 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ENGINE COOLANT TEMPERATURE SENSOR

Turn ignition switch OFF.
Disconnect engine coolant temperature sensor harness connector.
Remove engine coolant temperature sensor. Refer to "EXPLODED VIEW ".
Check resistance between engine coolant temperature sensor terminals by heating with hot water as shown in the illustration.

TERMINAL RESISTANCE REFERENCE CHART

Terminals	Condition		Resistance (kΩ)
1 and 2	Temperature [°C (°F)]	20 (68)	2.10 - 2.90
		50 (122)	0.68 - 1.00
		90 (194)	0.236 - 0.260

Fig 1: Checking Engine Coolant Temperature Sensor By Heating Hot Water

Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal?

YES: INSPECTION END

NO: Replace engine coolant temperature sensor.