Interface dial buttons do not work

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.

NOTE:

Check the vehicle battery condition first (see BATTERY TEST ).
Check the connectors at the interface dial and the audio-navigation switch panel for poor connections or loose terminals.
Check any official Honda service website for more service information about the navigation system.

Turn the ignition switch to ON (II).
Go into the System Diagnostic Mode (see SYSTEM DIAGNOSTIC MODE ), and use Hard Key test under Unit Check (see UNIT CHECK (QUICK CHECK) ).
Do the interface dial buttons work properly?

YES -The system is OK at this time.

NO -Go to step 3.
Measure the voltage between interface dial 5P connector terminal No. 2 and body ground.

Fig 1: Measuring Voltage Between Interface Dial 5P Connector Terminal No. 2 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 4.

NO -Repair an open in the wire between the driver's under-dash fuse/relay box and the interface dial.
Measure the voltage between interface dial 5P connector terminal No. 3 and body ground.

Fig 2: Measuring Voltage Between Interface Dial 5P Connector Terminal No. 3 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there less than 0.2 V?

YES -Go to step 5.

NO -Repair an open or high resistance in the wire between the interface dial and body ground (G501) (see AUDIO WIRE HARNESS (WITH NAVIGATION) (I) ).
Turn the ignition switch to LOCK (0).
Disconnect audio-navigation unit connector C (28P).
Check for continuity between audio-navigation unit connector C (28P) terminal No. 17 and interface dial 5P connector terminal No. 5.

Fig 3: Checking For Continuity Between Audio-Navigation Unit Connector C (28P) Terminal No. 17 And Interface Dial 5P Connector Terminal No. 5
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 8.

NO -There is an open in the wire between the interface dial and the audio-navigation unit. Replace the affected shielded harness.
Check for continuity between audio-navigation unit connector C (28P) terminals No. 2 and No. 17.

Fig 4: Checking For Continuity Between Audio-Navigation Unit Connector C (28P) Terminals No. 2 And No. 17
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -There is a short in the wires between the audio-navigation unit and the interface dial. Replace the affected shielded harness.

NO -Go to step 9.
Substitute a known-good interface dial (see INTERFACE DIAL REMOVAL/INSTALLATION ), and recheck.
Is the system OK?

YES -Replace the original interface dial (see INTERFACE DIAL REMOVAL/INSTALLATION ).

NO -Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).