Error Code: XM NO SIGNAL Or XM LOADING Is Displayed (With XM Radio)

Audio System Symptom Troubleshooting - Error code: XM NO SIGNAL or XM LOADING is displayed

Error code: XM NO SIGNAL or XM LOADING is displayed

NOTE:

- Check the vehicle battery condition first Testing and Inspection..
- Check the connectors for poor connections or loose terminals.

1. Park vehicle outside with a clear view of the southern horizon.

2. Turn the ignition switch to ON (II).

3. Turn on the audio unit, and select XM radio.

Does the XM radio receive a signal?

YES -

Reception interference operation is normal.�

NO -

Go to step 4.

4. Check for other XM error codes.

Are there other XM error codes displayed?

YES -

Go to Error Codes Audio System Error Codes.�

NO -

Go to step 5.

5. Turn the ignition switch to LOCK (0).

6. Check the connection at the XM antenna 2P connector and XM receiver connector B (2P).

Are the connectors connected?

YES -

Go to step 7.

NO -

Reconnect the connectors and recheck XM radio operation. If the signal is restored, the system is OK. If the signal is not restored go to step 7.

7. Measure the voltage between XM receiver connector A (14P) terminal No. 1 and body ground.





Is there battery voltage?

YES -

Go to step 9.

NO -

Go to step 8.

8. Measure the voltage between audio unit connector E (14P) terminal No. 1 and body ground.





Is there battery voltage?

YES -

Repair an open or high resistance in the wire between audio unit connector E (14P) terminal No. 1 and XM receiver connector A (14P) terminal No. 1.�

NO -

Replace the audio unit; with navigation system Audio Unit Removal/Installation (With Navigation), without navigation system Audio Unit Removal/Installation (Without Navigation).�

9. Turn the ignition switch to ON (II).

10. Measure the voltage between XM receiver connector A (14P) terminal No. 11 and body ground.





Is there less than 0.2 V?

YES -

Go to step 11.

NO -

Repair an open or high resistance in the wire between audio unit connector E (14P) terminal No. 11 and XM receiver connector A (14P) terminal No. 11. If the wire is OK, replace the audio unit; with navigation system Audio Unit Removal/Installation (With Navigation), without navigation system Audio Unit Removal/Installation (Without Navigation).�

11. Substitute a known-good XM antenna Removal and Replacement.

Does the XM radio receive a signal?

YES -

Replace the original XM antenna Removal and Replacement.�

NO -

Substitute a known-good XM antenna lead. If the XM receiver receives signal, replace the original XM antenna lead. If the XM receiver does not receive signal, substitute a known-good XM receiver XM Receiver Removal/Installation, and recheck. If the symptom/indication goes away, replace the original XM receiver XM Receiver Removal/Installation.�