Displaying the Diagnostic Trouble Code (DTC)

WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.

Turn the ignition switch OFF, and move the seat to a non-memorized position.
Press and hold the MEMO button (A) and both position buttons (B) at the same time.

Fig 1: Pressing And Holding MEMO Button And Position Buttons
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch ON (II), and wait at least 1 second, then release the three buttons.
After 1 second, the position button indicators (C) will blink to show the DTC.