Honda 2004 Odyssey Service Manual page 883

Automatic Transmission
System Description (cont'd)
Power Flow (cont'd)
In D or D3 position, the optimum gear is automatically selected from the 1st, 2nd, 3rd, 4th, and 5th gears according to
conditions such as the balance between the throttle opening (engine loading) and vehicle speed.
D or D3 Position in 1st gear
• Hydraulic pressure is applied to the 1st clutch, then the 1st clutch engages the secondary shaft 1st gear with the
secondary shaft by the one-way clutch.
• The mainshaft 3rd gear drives the secondary shaft via the countershaft 3rd gear and secondary shaft idler gear.
• The secondary shaft 1st gear drives the countershaft 1st gear and the countershaft.
• Power is transmitted to the final drive gear, which in turn drives the final driven gear.
MAINSHAFT
COUNTERSHAFT
3RD GEAR
COUNTERSHAFT
SECONDARY SHAFT
SECONDARY SHAFT
IDLER GEAR
14-270
MAINSHAFT
3RD GEAR
ONE-WAY
CLUTCH
1ST CLUTCH
COUNTERSHAFT
1ST GEAR
SECONDARY SHAFT
1ST GEAR
TORQUE CONVERTER
FINAL DRIVE GEAR
FINAL DRIVEN GEAR