In 3rd Gear

WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

Hydraulic pressure is applied to the 3rd clutch, then the 3rd clutch engages the mainshaft 3rd gear with the mainshaft.
The mainshaft 3rd gear drives the countershaft 3rd gear and the countershaft.
Power is transmitted to the final drive gear, which in turn drives the final driven gear.

Fig 1: Power Flow - In 3rd Gear
Courtesy of AMERICAN HONDA MOTOR CO., INC.