Error Code: XM No Signal Is Displayed (With XM Radio)

Symptom Troubleshooting: Error code: XM NO SIGNAL is displayed

Error code: XM NO SIGNAL is displayed

NOTE:

- Check the vehicle battery condition first.

- Check the connectors for poor connection 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 -
- With AcuraLink: Go to step 4.

- Without AcuraLink: Go to step 10.



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

5. Check the AM/FM/XM antenna 2P connector and AcuraLink control unit (XM receiver) connector C (2P).

Are the connectors connected?
YES - Go to step 6.

NO - Reconnect the AM/FM/XM antenna 2P connector and AcuraLink control unit connector C (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 3.


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

7. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 1 and body ground.

Is there battery voltage?
YES - Go to step 8.

NO - Repair open in the wire between the No. 23 (10 A) fuse in the under-hood fuse/relay box and AcuraLink control unit (XM receiver) connector A (20P) terminal No. 1.






8. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 11 and body ground.

Is there less than 0.1 V?
YES - Go to step 9.

NO - Repair open in the wire between AcuraLink control unit (XM receiver) connector A (20P) terminal No 11 and body ground (G505).. Power and Ground Distribution






9. Substitute a known-good AM/FM/XM antenna.

Does the XM radio receive a signal?
YES - Replace the AM/FM/XM antenna. Service and Repair

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 (USA models with Navigation)


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

11. Check the connection at AM/FM/XM antenna connector B (2P) and XM receiver connector B (2P).

Are the connectors connected?
YES - Go to step 12.

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 10.


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

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

Is there battery voltage?
YES - Go to step 14.

NO - Repair open in the wire between audio unit connector B (14P) terminal No. 1 and XM receiver connector A (14P) terminal No. 1.






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

Is there less than 0.1 V?
YES - Go to step 15.

NO - Repair open in the wire between audio unit connector B (14P) terminal No. 11 and XM receiver connector A (14P) terminal No. 11.






15. Substitute a known-good AM/FM/XM antenna.

Does the XM radio receive signal?
YES - Replace the AM/FM/XM antenna. Service and Repair

NO - Substitute a known-good XM antenna lead. If the XM receiver receives a 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 (With XM Radio, except USA models with Navigation)