Engine Coolant Temperature Sensor

Check resistance between engine coolant temperature sensor terminals 1 and 2 as shown in the figure.

Fig 1: Checking Resistance Between Engine Coolant Temperature Sensor Terminals 1 And 2

Courtesy of SUZUKI OF AMERICA CORP.

ENGINE COOLANT TEMPERATURE SPECIFICATION

Engine coolant temperature °C (°F)	Resistance (kΩ)
20 (68)	2.1 - 2.9
50 (122)	0.68 - 1.00
90 (194)	0.236 - 0.260

Fig 2: Engine Coolant Temperature Sensor Graph

Courtesy of SUZUKI OF AMERICA CORP.