XM Radio Preset Memory Is Lost (With XM Radio)

Symptom Troubleshooting: XM radio preset memory is lost

XM radio preset memory is lost

NOTE:

- Check the vehicle battery condition first.

- Check the connectors for poor connections or loose terminals.

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

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

Does each of the XM radio channel preset buttons set properly?
YES - Go to step 3.

NO - Substitute a known-good XM Receiver, XM Receiver Removal/Installation (With XM Radio) and recheck. If the symptom/indication goes away, replace the original XM Receiver. XM Receiver Removal/Installation (With XM Radio)


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 XM radio stations?
YES - System is normal at this time. Check connections at the audio unit.

NO - Go to step 5.


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

6. Disconnect XM receiver connector A (14P).

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 open in the wire between audio unit connector E (14P) terminal No. 1 and XM receiver connector A (14P) terminal No. 1.






8. Reconnect XM receiver connector A (14P).

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

Is there less than 0.5 V?
YES - Substitute a known-good audio unit, XM Receiver Removal/Installation (With XM Radio) and recheck. If the symptom/indication goes away, replace the audio unit. XM Receiver Removal/Installation (With XM Radio)

NO - Repair open in the wire between audio unit connector E (14P) terminal No. 11 and XM receiver connector A (14P) terminal No. 11.