Error Code: XM No Signal Is Displayed

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

Error code: XM NO SIGNAL 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. Turn the ignition switch to LOCK (0).

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

Are the connectors connected?

YES -

Go to step 6.

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 6.

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

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





Is there battery voltage?

YES -

Go to step 8.

NO -

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

8. 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 9.

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.

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

Does the XM radio receive a signal?

YES -

Replace the 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.�