Error Code: XM No Signal or XM Antenna Is Displayed

Error code: XM NO SIGNAL or XM ANTENNA is displayed

NOTE: Check XM radio reception in an open area. Poor reception/interference can be caused by tall buildings, mountains, or high-voltage power lines.

1. Park the vehicle outside with a clear view of the southern horizon.

Does the XM radio receive a signal?

YES - Reception interference operation is normal

NO - Go to step 2.

2. Check AM/FM/XM antenna 3P connector and XM receiver connector B (3P).

Are XM antenna connector B connected?

YES - Go to step 3.

NO - Reconnect XM connector B, recheck XM radio operation. If the signal is restored, operation is normal. If signal not restored go to step 3.

3. Turn the ignition switch to accessory (I).




4. 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 5.

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




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

Is there less than 0.1 V?

YES - Go to step 6.

NO - Repair open in the wire between XM receiver connector A (14P) No. 11 terminal and body ground (G551).

6. Substitute known-good AM/FM/XM antenna.

Does the XM radio receiver a signal?

YES - Replace the AM/FM/XM antenna.

NO - Substitute known-good XM antenna lead. If the XM radio receives the signal, replace the original XM antenna lead. If the XM radio does not receive a signal, substitute a known-good XM receiver