ECT Sensor No. 2 Removal/Installation

Disconnect the negative battery cable.
Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT ).
Disconnect the ECT sensor No. 2 connector.
Remove the ECT sensor No. 2 using the SST.
Install in the reverse order of removal.
Refill the engine coolant. (See ENGINE COOLANT REPLACEMENT ).

Fig 1: Installing ECT Sensor No. 2 Connector With Torque Specifications
Courtesy of MAZDA MOTORS CORP.