Engine Coolant Temperature (ECT) Sensor Removal/Installation

WARNING:

When the engine is hot, it can badly burn. Turn off the engine and wait until it is cool before removing the ECT sensor.

Disconnect the negative battery cable.
Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
Disconnect the ECT sensor connector.
Remove the ECT sensor using the Special Service Tool.
Install in the reverse order of removal.
Refill the engine coolant. (See ENGINE COOLANT REPLACEMENT .)

Fig 1: Locating ECT Sensor With Torque Specifications
Courtesy of MAZDA MOTORS CORP.