WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
This test checks whether the rearview camera is connected to the navigation display unit.
When connection is shown NG, check the rearview camera signal line.