Unit Check (Quick Check): Res
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 Honda Odyssey, 2016 Honda Odyssey, 2015 Honda Odyssey, 2014 Honda Odyssey, and 2013 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
This diagnosis checks the GA-Net bus between the rear controller and screen and the audio-navigation unit.
When the connection shows NG, check the connection between the rear controller and screen and the audio-navigation unit.