XM Radio Preset Memory Is Lost

XM radio preset memory is lost

NOTE:
- Check the vehicle battery condition first.
- Always 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 - Go to step 7.

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
- With AcuraLink: Go to step 5.
- Without AcuraLink: Go to step 12.

5. Turn the ignition switch to LOCK (0).
6. Disconnect AcuraLink control unit (XM receiver) connector A (20P).
7. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) No. 1 terminal and body ground.






Is there battery voltage?

YES - Go to step 8.

NO - Repair open in the wire between the under-hood fuse/relay box and AcuraLink control unit (XM receiver) connector A (20P) No. 1 terminal.

8. Turn the ignition switch to ON (II).
9. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) No. 2, and No. 12 terminals and body ground individually.






Is there battery voltage?

YES - Go to step 10.

NO - Repair open in the wire(s) between the under-hood fuse/relay box and AcuraLink control unit (XM receiver) connector A (20P) No. 2 and/or No. 12 terminals.

10. Reconnect AcuraLink control unit XM receiver) connector A (20P).
11. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) No. 11 terminal and body ground.






Is there less than 0.1 V?

YES - Replace the AcuraLink control unit (XM receiver).

NO - Repair open in the wire between AcuraLink control unit (XM receiver) connector A (20P) No. 11 terminal and body ground (G505).

12. Turn the ignition switch to LOCK (0).
13. Disconnect XM receiver connector A (14P).
14. Measure the voltage between XM receiver connector A (14P) No. 1 terminal and body ground.






Is there battery voltage?

YES - Go to step 15.

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

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






Is there less than 0.1 V?

YES - Replace the XM receiver.

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