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 connection or loose terminals.

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

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

3. Check for other XM error codes.

Are there other XM error codes displayed?

YES -

Go to error codes.

NO -

Go to step 4.

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

Does the XM radio receive a signal?

YES -

Reception interference operation is normal.�

NO -

- With AcuraLink: Go to step 5.
- Without AcuraLink: Go to step 13.

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

6. Check the XM antenna 2P connector and AcuraLink control unit (XM receiver) connector B (2P).

Are the connectors connected?

YES -

Go to step 7.

NO -

Reconnect the XM antenna 2P connector and AcuraLink control unit (XM receiver) connector B (2P) connector, 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. Turn the ignition switch to ON (II).

8. Measure the voltage between AcuraLink control unit (XM receiver) connector A (32P) terminal No. 1 and body ground.





Is there battery voltage?

YES -

Go to step 9.

NO -

Repair an open in the wire between the No. 5 (7.5 A) fuse in the driver's under-dash fuse/relay box and AcuraLink control unit (XM receiver) connector A (32P) terminal No. 1.�

9. Measure the voltage between body ground and AcuraLink control unit (XM receiver) connector A (32P) terminals No. 2 and No. 3 individually.





Is there battery voltage?

YES -

Go to step 10.

NO -

Repair an open in the wire between the No. 32 (10 A) or the No. 21 (10 A) fuse in the driver's under-dash fuse/relay box and XM receiver connector A (32P) terminals No. 2 and No. 3.�

10. Measure the voltage between AcuraLink control unit (XM receiver) connector A (32P) terminal No. 28 and body ground.





Is there less than 0.2 V?

YES -

Go to step 12.

NO -

Repair an open in the wire between AcuraLink control unit (XM receiver) connector A (32P) terminal No. 28 and body ground (G602).�

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

12. Substitute 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 AcuraLink control unit (XM receiver) receives a signal, replace the original XM antenna lead. If the AcuraLink control unit (XM receiver) does not receive a signal, substitute a known-good AcuraLink control unit (XM receiver) AcuraLink Control Unit (XM Receiver) Removal/Installation.�

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

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

Are the connectors connected?

YES -

Go to step 15.

NO -

Reconnect the connectors, and recheck the XM radio operation. If the signal is restored, the system is OK. If the signal is not restored go to step 12.

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

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





Is there battery voltage?

YES -

Go to step 17.

NO -

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

17. Measure the voltage between XM receiver connector A (14P) terminal No. 2 and body ground.





Is there less than 0.2 V?

YES -

Go to step 18.

NO -

Repair an open in the wire between audio unit connector C (14P) terminal No. 11 and USB adapter control unit connector A (14P) terminal No. 11 and XM receiver connector A (14P) terminal No. 11.�

18. 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 19.

NO -

Repair an open in the wire between audio unit connector C (14P) terminal No. 11 and XM receiver connector A (14P) terminal No. 11.�

19. 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 a signal, substitute a known-good XM receiver XM Receiver Removal / Installation.�