Audio System Symptom Troubleshooting - Error code: Check Antenna is displayed

Error code: Check Antenna is displayed 

NOTE: 

• Check the vehicle 12 volt battery condition first .
• Check XM radio reception in an open area. Poor reception/interference can be caused by tall buildings, mountains, or high-voltage power lines.
• Check the connectors for poor connections or loose terminals.

• 1. Problem verification:

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

  - 2. Turn the vehicle to the ON mode.

  - 3. Turn on the audio system, and select the XM radio.

  Is Check Antenna displayed?

  YES 

  The failure is duplicated, go to step 2.

  NO 

  Intermittent failure, the system is OK at this time.

• 2. Determine possible failure area (XM antenna, others):

  - 1. Turn the vehicle to the OFF (LOCK) mode.

  - 2. Substitute a known-good roof antenna .

  - 3. Turn the vehicle to the ON mode.

  - 4. Turn on the audio system, and select the XM radio.

  Is Check Antenna displayed?

  YES 

  Go to step 3.

  NO 

  Replace the original roof antenna .

• 3. XM receiver check (substitution):

  - 1. Turn the vehicle to the OFF (LOCK) mode.

  - 2. Substitute a known-good XM receiver , and recheck.

  Does the symptom go away?

  YES 

  Replace the original XM receiver .

  NO 

  Replace the original XM antenna lead.