Unit Check (Quick Check): Display

This diagnostic does additional checks on the communication bus between the audio-navigation unit and the navigation display unit This test also checks the internal electronic functions

• When the connection is NG, first check for loose terminals at the audio-navigation unit and the navigation display unit connections Next check for an open or short in the communication line between the audio-navigation unit and the navigation display unit If the line has an open or short, replace the affected shielded harness
• If the ROM or RAM is NG, replace the navigation display unit
• The version represents the software version in the display

Fig 1: Screen Display - Navigation Unit

Courtesy of AMERICAN HONDA MOTOR CO., INC.