XM Radio Preset Memory Is Lost
XM radio preset memory is lostNOTE: If you can only tune to channel 000.001, and 247, make sure the audio unit is set to channel mode (see owner's manual), if it is set to channel mode call XM radio customer support and check the account activation status.
1. Set each of the XM radio channel preset buttons.
Do each of the XM radio channel preset buttons set properly?
YES - Go to step 2.
NO - Replace the audio unit.
2. Turn the ignition switch OFF for 1 minute, then turn it back to ON (II).
3. 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 the connections at the audio unit
NO - Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Measure the voltage between XM receiver connector A (14P) No. 1 and No. 7 terminal and body ground.
Is there battery voltage?
YES - Go to step 6.
NO - Repair open in the wire between the under-dash fuse/relay box and XM receiver connector A (14P)No. 1 terminal.
6. 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 XM receiver connector A (14P) No. 11 terminal and body ground (G551).
7. Check for continuity between audio unit connector A (20P) No. 19 terminal and gauge control module 36P connector No. 26 terminal.
Is there continuity?
YES - Go to step 9.
NO - Repair open in the wire between the gauge control module and the audio unit.
8. Turn the ignition switch ON (II).
9. With the headlight switch still on. Measure the voltage between audio unit connector A (20P) No. 9 terminal and body ground.
Is there battery voltage?
YES - Check the connections at audio unit connector A (20P). If all the connections are OK, replace the audio unit.
NO - Repair open in the wire between the under-dash fuse/relay box and the audio unit.