WARNING: This page is about a different car, the 2004 Honda Odyssey, 2003 Honda Odyssey, and 2002 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Electronic Control System Schematic (1 Of 2)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: Electronic Control System Schematic (2 Of 2)