WARNING: This page is about a different car, the 2006 Acura MDX, 2005 Acura MDX, 2004 Acura MDX, and 2003 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: A/T Interlock System Circuit Diagram - 2003-2004 Models
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: A/T Interlock System Circuit Diagram - 2005-2006 Models