Warning
1. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.)
2. Disconnect the ECT sensor connector.

3. Remove the ECT sensor.
4. Install in the reverse order of removal.
Tightening torque 10-14 N·m
{1.02-1.42 kgf·m, 7.38-10.32 ft·lbf}
5. Refill the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.)
Manifold absolute pressure (map) sensor inspection
Engine coolant temperature (ect) sensor inspectionMazda 6 Service Manual: Control system
L.H.D.
R.H.D.
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Mazda 6 Service Manual: Service cautions
HANDLING INSUFFICIENT REFRIGERANT LEVEL
If an insufficient refrigerant level is detected at troubleshooting,
do not charge (add) the refrigerant. Because an accurate amount of
refrigerant cannot be determined from the pressure indicated on the manifold
gauge, never charge the refrigeran ...