In 5th Gear

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

Hydraulic pressure is applied to the servo valve to engage the reverse selector with the countershaft 5th gear while the shift lever in D.
Hydraulic pressure is applied to the 5th clutch, then the 5th clutch engages the mainshaft 5th gear with the mainshaft.
The mainshaft 5th gear drives the countershaft 5th gear, which drives the reverse selector hub and the countershaft.
Power is transmitted to the final drive gear, which in turn drives the final driven gear and the transfer drive gear.
The transfer output shaft drives the transfer hypoid drive gear/shaft and the transfer output shaft (hypoid gear).
Hydraulic pressure is also applied to the 1st clutch, but since the rotation speed of 5th gear exceeds that of 1st gear power from 1st gear is cut off at the one-way clutch.

NOTE: The graphic shows the 4WD transmission; the 2WD transmission does not have the transfer mechanism.

Fig 1: Identifying A/T Power Flow Diagram (5th Gear)

Courtesy of AMERICAN HONDA MOTOR CO., INC.