Operation CHARM: Car repair manuals for everyone.

Coolant Temperature Sensor/Switch (For Computer): Service and Repair






REMOVAL AND INSTALLATION

INSPECTION

Engine Coolant Temperature Sensor





Raise the water temperature and measure the resistance if within the standard value.
Standard value:
2.37 ± 0.24 k Ohms [at 20°C (68°F)]
290 ± 32 Ohms [at 80°C (176°F)]


Engine Coolant Temperature Gage Unit





Immerse the gage unit in hot water at 70°C (158°F) and measure the resistance value with an ohmmeter.

Standard value: 104 ± 13.5 Ohms [at 70°C (158°F)]