Diesel Data: Automotive Repair

XM Radio Preset Memory Is Lost (With XM Radio)




Audio System Symptom Troubleshooting - XM radio preset memory is lost

XM radio preset memory is lost

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- Check the connectors for poor connections or lose terminals.
- If you can only tune to channel 000, 001, 174, and 247, make sure the audio 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 system 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 -

- With navigation: Replace audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�
- Without navigation: Replace audio unit Audio Unit Removal/Installation (Without Navigation).�

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 normal at this time. Check the connections at the audio-navigation unit or the audio unit.�

NO -

Go to step 5.

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

6. Measure the voltage between body ground and XM receiver connector A (14P) terminals No. 1 and No. 7 individually.





Is there battery voltage?

YES -

Go to step 7.

NO -

Repair an open in the wire between the under-dash fuse/relay box and XM receiver connector A (14P) terminals No. 1 and/or No. 7.�

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

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





Is there less than 0.2 V?

YES -

Replace the XM receiver XM Receiver Replacement.�

NO -

Repair an open or high resistance in the wire between XM receiver connector A (14P) terminal No. 11 and body ground (G551).�