Audio unit button does not work (without navigation)

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Check the vehicle battery condition first (see 12 VOLT 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 (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 the faulty button.
Is the symptom still present?

YES -
- Except DX model: Substitute a known-good center panel (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original center panel. If the symptom is still present, substitute a known-good audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original audio unit.
- DX model: Substitute a known-good audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original audio unit.
NO -The system is OK. There is a chance the button was incorrectly used.