Sensor Inspection

CAUTION: Be careful not to touch the tool against the connector (resin section) when removing and installing.

1. Remove engine coolant temperature sensor from the intake manifold.

Engine Coolant Temperature Sensor Inspection:

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

Temperature [°C (°F)] Resistance (K ohms)

0 (32) 5.8
20 (68) 2.4
40 (104) 1.1
80 (176) 0.3


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