Diagnostic Procedure

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

Error code: XM NO SIGNAL or XM ANTENNA is displayed

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- Check the connectors for poor connections or loose terminals.
- Check XM radio reception in an open area. Poor reception/interference can be caused by tall buildings, mountains, or high-voltage power lines.

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

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

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

Does the XM radio receive a signal?

YES -

Intermittent reception interference. The system is OK at this time.�

NO -

Go to step 4.

4. Check XM antenna connector B (2P) at the XM receiver.

Is the XM antenna connector B (2P) connected?

YES -

Go to step 5.

NO -

Reconnect XM connector B (2P), and recheck the XM radio operation. If signals are restored, operation is normal. If signals are not restored, go to step 5.

5. Substitute a known-good XM antenna AM/FM/XM Antenna Replacement (With XM Radio).

Is the error massage gone?

YES -

Replace the original XM antenna AM/FM/XM Antenna Replacement (With XM Radio).�

NO -

Go to step 6.

6. Disconnect the audio disc changer 13P connector (with navigation), and USB adapter unit connector A (14P) (if equipped).

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

8. 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 -

Repair an open in the wire between the audio-navigation unit or the audio unit and the XM receiver.�

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





Is there less than 2.0 V?

YES -

Go to step 10.

NO -

Repair an open in the wire between the audio-navigation unit or audio unit and the XM receiver.�

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 in the wire between the audio-navigation unit or the audio unit and the XM receiver.�

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

12. Substitute a known-good XM receiver XM Receiver Removal/Installation.

Does the XM radio receiver a signal?

YES -

Replace the original XM receiver XM Receiver Removal/Installation.�

NO -

Substitute a known-good XM antenna lead. If the XM radio receives signals, replace the original XM antenna lead. If the XM radio does not receive signals, substitute a known-good XM receiver XM Receiver Removal/Installation. If the XM radio receives signals, replace the XM receiver XM Receiver Removal/Installation. If the XM radio does not receive signals, replace the XM antenna lead.�