Error Code: XM No SIGNAL Or XM Loading is Displayed

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 Battery Test.
- 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. Do the XM Self-Diagnosis.

Are there XM error codes displayed?

YES -

Refer to Solution for troubleshooting.

NO -

Go to step 4.

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

Does the XM radio receive a signal?

YES -

Reception interference operation is normal.

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. 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 -

Go to step 8.

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





Is there battery voltage?

YES -

Go to step 10.

NO -

Go to step 9.

9. 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 Audio Unit Removal/Installation (With Navigation).
- Without navigation Audio Unit Removal/Installation (Without Navigation).

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

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





Is there less than 0.2 V?

YES -

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.

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 Audio Unit Removal/Installation (With Navigation), without navigation Audio Unit Removal/Installation (Without Navigation).