Navigation Cannot Control XM Radio

Navigation cannot control XM radio

- Review the audio system diagnostic system.
- If only channels 0,1 and 247 and I can be received, check the customer account status.

1. Go into the Diagnostic Menu and use the "Navi System Link" test.

Is only the "XM" icon red?

YES - Check the connector at the XM receiver and navigation unit 20P connector. If the connection is OK, substitute a known-good XM receiver, and recheck. If the symptom goes away, replace the original XM receiver.

NO - Go to step 2.

2. 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.