Navigation cannot control XM radio

NOTE:

Check the vehicle battery condition first.
Make sure that the correct DVD color and version are installed.
Check any official Honda service website for more service information about the navigation system.

Start the vehicle.
Make sure the anti-theft code for the audio system is entered.
Go into the Diagnostic mode, and use the System Links diagnosis (see SYMPTOM DIAGNOSIS ).
Is the XM icon red?

YES -Do the troubleshooting for the voice guidance cannot be heard (see GPS ICON IS WHITE OR NOT SHOWN ).

NO -Go to step 3.
Substitute a known-good navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION ).
Can the navigation control XM radio functions?

YES -Replace the navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION ).

NO -Replace the AcuraLink control unit (XM receiver) (see STEREO AMPLIFIER REMOVAL/INSTALLATION ) or XM receiver (see XM RECEIVER REMOVAL/INSTALLATION ).