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Diagnostic System Diagram

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

This diagram below shows all of the navigation diagnostic features available for system troubleshooting The diagram starts at the center, and works outward in layers

Access to the diagnostic features begins by starting the vehicle This is necessary so the system can check the other systems connected by various busses After starting the vehicle you can enter the diagnostic mode either by pressing and holding MENU, MAP/GUIDE, and CANCEL, or by connecting the 2-PIN SCS connector

The main menu screen allows 2 checking modes - one automatic, and one manual:

NOTE: Do not clear or change settings unless specified by either the Service Article troubleshooting procedures or by the factory
Fig 1: Diagnostic System Diagram
G05989701Courtesy of AMERICAN HONDA MOTOR CO., INC.