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 Battery Test.
- 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 the 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 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, and recheck. If the symptom/indication goes away, replace the original XM receiver XM Receiver Removal/Installation.

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 -

The system is OK at this time. Check connections at the audio 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 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 audio unit connector E (14P) terminal No. 1 and XM receiver connector A (14P) terminal No. 1.

NO -

Replace the audio unit:

- With navigation Audio Unit Removal/Installation (With Navigation).
- Without navigation Audio Unit Removal/Installation (Without 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 -

Replace the XM receiver XM Receiver Removal/Installation.

NO -

Repair an open or high resistance in the wire between audio unit connector E (14P) terminal No. 11 and XM receiver connector A (14P) terminal No. 11. If the wire is OK, replace the audio unit; with navigation Audio Unit Removal/Installation (With Navigation), without navigation Audio Unit Removal/Installation (Without Navigation).