Navigation cannot control HVAC by voice command

NOTE:

Check the vehicle battery condition first (see BATTERY TEST ).
If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
Verify that the correct audio-navigation unit is installed for this model. Go into the System Diagnostic Mode (see SYSTEM DIAGNOSTIC MODE ), and use the Version (see VERSION ).
Check the connectors for poor connections or loose terminals.
Check any official Honda service website for more service information about the navigation system.

Connect the HDS to the DLC (see GENERAL TROUBLESHOOTING INFORMATION ).
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
Check for climate control DTCs with the HDS.
Are there any DTCs indicated?

YES -Troubleshoot the indicated DTC(s).

NO -Go to step 4.
Check the hard error code (see HOW TO CHECK ERROR HISTORY (NAVIGATION DTCS) ).
Are there any navigation DTCs indicated?

YES -Troubleshoot the indicated navigation DTC(s).

NO -Go to step 5.
Substitute and a known-good climate control unit (see CLIMATE CONTROL UNIT REMOVAL/INSTALLATION ), and recheck.
Does the symptom go away?

YES -Replace the original climate control unit (see CLIMATE CONTROL UNIT REMOVAL/INSTALLATION ).

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