XM Radio Preset Memory Is Lost (With Navigation)

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, 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-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 normal 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 7.

NO - Repair an open in the wire between the audio-navigation unit and the XM receiver.






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 - 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.

NO - Repair an open or high resistance in the wire between the XM receiver connector and the audio-navigation unit.