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.

- Check the connectors for poor connections or loose terminals.

- If you can only tune to channels 000, 001, 174, and 247, make sure the navigation unit is set to channel mode (see owner's 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 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 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 radio stations?
YES - System is normal at this time. Check connections at the navigation 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 the navigation unit and the XM receiver.






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

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

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

Is there less than 0.1 V?
YES - Substitute a known-good navigation unit, Service and Repair and recheck. If the symptom/indication goes away, replace the navigation unit.

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