Dtc u2021Mazda 6 Service Manual: Engine coolant temperature (ect) sensor inspection
Note
Perform the following inspection only when directed.
ECT Sensor Resistance Inspection
1. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.)
2. Remove the ECT sensor (located above the starter).
3. Place the ECT sensor in water with a thermometer, and heat the water
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Mazda 6 Service Manual: A/c compressor removal/installation
1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See RECOVERY.) (See CHARGING.)
3. Remove the right side splash shield and mudguard (L.H.D. only).
4. Loosen the drive belt and remove it.
Caution
If moisture or foreign material enters the refrigeration ...