ECT Sensor No. 1

Disconnect the negative battery terminal. (Refer to NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Drain the engine coolant. (Refer to ENGINE COOLANT REPLACEMENT .)
Remove the following parts:
1. Plug hole plate (Refer to PLUG HOLE PLATE REMOVAL/INSTALLATION .)
2. Battery (Refer to BATTERY REMOVAL/INSTALLATION .)
3. Air inlet pipe (Refer to INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
Disconnect the ECT sensor No. 1 connector.
Remove the ECT sensor No. 1 using the SST .

Fig 1: Removing ECT Sensor No. 1 Using SST
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.
Refill the engine coolant. (Refer to ENGINE COOLANT REPLACEMENT .)