mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Engine - Coolant Temperature Sensor/Switch|Locations|Page 2280 > < Engine - Coolant Temperature Sensor/Switch|Locations
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Engine - Coolant Temperature Sensor/Switch: Testing and Inspection

1.  

Disconnect the water thermosensor connector, then remove the water thermosensor from the engine.

2.  

Place the sensor in water with a thermometer and heat the water gradually.

Water Thermosensor Testing

3.  

Check the resistance of the sensor with an ohmmeter.

 
        COOLANT TEMPERATURE        

RESISTANCE (KOHMS)

    

-20°C (-4°F)           

14.6-17.8

    

20°C (68°F)          

2.2-2.7

    

80°C (176°F)           

.290-0.354

4.  

If not as specified, replace the water thermosensor.

5.  

Install the water thermosensor with a new washer.  Torque the sensor to 25-29 Nm (2.5-3.0 mmkg; 18-22 ft lbs).

6.  

Connect the water thermosensor connector.

Engine - Coolant Temperature Sensor/Switch|Locations|Page 2280 > < Engine - Coolant Temperature Sensor/Switch|Locations