Engine Coolant Temperature (ECT) Sensor
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Mazda Tribute, 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, and 2003 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
The B2300 pickup and Tribute 2.0L use a Cylinder Head Temperature (CHT) sensor. See CYLINDER HEAD TEMPERATURE SENSOR .
The ECT sensor is a thermistor device which changes resistance proportionate to temperature changes. The ECT sensor inputs engine coolant temperature to the PCM. For ECT sensor location, see CHT & ECT SENSOR LOCATIONS table.
CHT & ECT SENSOR LOCATIONS
| Application | Location | |||
|---|---|---|---|---|
| B2300 (1) | Top Center Of Cylinder Head | |||
| B3000 & B4000 | Top Front Of Intake Manifold | |||
| Mazda6 | ||||
| 2.3L | Rear Of Engine Under Ignition Coil | |||
| 3.0L | Top Rear Of Engine | |||
| Miata | Top Rear Of Engine | |||
| MPV | Top Rear Of Engine | |||
| Protege & Protege5 | Top Rear Of Engine | |||
| Tribute | ||||
| 2.0L (1) | Front Of Engine By Alternator | |||
| 3.0L | Top Rear Of Engine | |||
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