Drain the coolant.
Remove the #2 cylinder head cover.
Removing
Disconnect the engine coolant temperature sensor connector.
Pic. 2.565. Removing the coolant temperature sensor
Using SST, remove the engine coolant temperature sensor and gasket (pic. 2.565).
Installation
Install a new gasket to the engine coolant temperature sensor.
Using SST, install the engine coolant temperature sensor.
Tightening torque: 19.6 Nm.
Connect the engine coolant temperature sensor connector.
Fill with coolant.
Connect the negative terminal to the battery terminal.
Tightening torque: 5.4 Nm.
Check for coolant leaks.
Install the cylinder bank #2 head cover.