mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

EGR Valve Position Sensor > < Clutch Switch, ECM|Locations|Page 1240
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Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection

Testing Water Thermoswitch

1.  

Remove the switch from the radiator and place it in water with a thermometer. 

2.  

Gradually heat the water and check the continuity of the switch.

    COOLANT TEMPERATURE        CONTINUITY

    More than approx 17°C (63°F)        YES
    Less than approx 17°C (63°F)        NO

3.  

If not correct, replace the water thermoswitch.

EGR Valve Position Sensor > < Clutch Switch, ECM|Locations|Page 1240