Audio Unit Button Does Not Work (Without Navigation)

WARNING: This page is about a different car, the 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. 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 for poor connections or loose terminals.
if the audio unit does not turn on, go to AUDIO UNIT POWER SWITCH WILL NOT TURN ON.
- with navigation (see AUDIO UNIT POWER SWITCH WILL NOT TURN ON (NO INFORMATION DISPLAY AND NO SOUND) (WITH NAVIGATION) )
- without navigation (see AUDIO UNIT POWER SWITCH WILL NOT TURN ON (NO INFORMATION DISPLAY AND NO SOUND) (WITHOUT NAVIGATION) )

Turn the ignition switch to ON (II).
Using the owner's manual, check the operation of faulty button.
Is the symptom still present?

YES - Go to step 3.

NO - The system is OK. There is a possibility that the customer used the button incorrectly.
Turn the ignition switch to LOCK (0).
Substitute a known-good center panel (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck.
Is the symptom still present?

YES - Replace the original center panel.

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