Navigation Cannot Control XM Radio

Navigation cannot control XM radio

NOTE:
- Make sure the DVD is not scratched or damaged.
- Make sure the correct DVD color and version is installed.

1. Turn the ignition switch ON (II).
2. Go into the Diagnostic Menu, and use the "Navi System Link" test.

Is the "XM" icon red?

YES - Check the connector at the XM receiver and the navigation unit (20P connector).

NO - Go to step 3.

3. Turn the ignition switch OFF.
4. Substitute a known-good navigation unit, and recheck.

Can the navigation control the XM radio?

YES - Replace the navigation unit.

NO - Do the audio system troubleshooting.