Unit Check (Quick Check): HFL
WARNING: This page is about a different car, the 2011 Honda Pilot, 2010 Honda Pilot, and 2009 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
This checks the 4 wire communication bus between the HandsFreeLink control unit and the navigation unit.
When the connection appears NG, check the HFL function and go to HFL SYSTEM TROUBLESHOOTING .