XM Radio Preset Memory Is Lost

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 loose terminals.
- If you can only tune to channel 000, 001, 174, and 247, make sure the audio unit is set to channel mode (see owners manual), if it is set to channel mode, call XM Satellite Radio customer support and check the account activation status.

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

2. Turn on the audio 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 6.

3. Turn the ignition switch to LOCK (0) for 1 minute.

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

5. 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 connections at the audio unit.�

NO -

Go to step 6.

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

7. 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 -

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

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 unit Audio Unit Removal/Installation, and recheck. If the symptom/ indication goes away, replace the original audio unit Audio Unit Removal/Installation.�

NO -

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