Sensor Inspection

WARNING: This page is about a different car, the 2005 Hyundai Accent and 2004 Hyundai Accent. However, it is still accessible from the selected car via links, so may be relevant.

Remove the engine coolant temperature sensor from the intake manifold.

With the temperature sensing portion of the engine coolant temperature sensor immersed in hot water, check resistance.

COOLANT TEMPERATURE SENSOR RESISTANCE SPECIFICATIONS

Temperature °C (°F)	Resistance (kΩ)
-30 (-22)	22.22~31.78
-10 (14)	8.16~10.74
0 (32)	5.18~6.60
20 (68)	2.27~2.73
40 (104)	1.059~1.281
60 (140)	0.538~0.650
80 (176)	0.298~0.322
90 (194)	0.219~0.243

Fig 1: Check Engine Coolant Temperature Sensor Resistance

Courtesy of HYUNDAI MOTOR CO.

If the resistance greatly deviates from the standard value, replace the sensor.