XM Radio Preset Memory Is Lost (With Navigation)

Audio System Symptom Troubleshooting - XM radio preset memory is lost

XM radio preset memory is lost (with navigation)

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- Check the connectors for poor connections or loose terminals.
- If you can only tune to channel 000, 001, 174, and 247, make sure the audio-navigation unit is set to channel mode (see Owner's Manual), if it is set to channel mode, call XM Radio customer support and check the account activation status.

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

2. Turn on the audio-navigation unit and set each of the XM radio channel preset buttons.

Do each of the XM radio channel preset buttons set properly?

YES -

Go to step 3.

NO -

Go to step 5.

3. Turn the ignition switch to LOCK (0) for 1 minute, then turn it back to ON (II).

4. Test all of the XM radio channel preset buttons for proper recall operation.

Do the preset buttons recall the set radio stations?

YES -

System is OK at this time. Check connections at the audio-navigation unit.�

NO -

Go to step 5.

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

6. 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 -

Go to step 7.

7. Measure the voltage between audio-navigation 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 the audio-navigation unit and the XM receiver.�

NO -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�

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

9. 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 audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�

NO -

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