U1220 Code - XM Serial Communication
Quick Answer
Integrates Hard Disk Drive (HDD) allowing map data and music data to be stored. Common causes include Faulty Audio and Video (AV) Control Unit, Audio and Video Control Unit harness is open or shorted, Audio and Video Control Unit circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- U1220 indicates XM Serial Communication.
- Common causes
- Common causes include Faulty Audio and Video (AV) Control Unit, Audio and Video Control Unit harness is open or shorted, Audio and Video Control Unit circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code U1220 Description
The Diagnostic Trouble Code (DTC) sets when the Audio and Video (AV) Control Unit detects an internal malfunction of the Audio and Video (AV) Control Unit (satellite radio tuner communication malfunction).
What are the Possible Causes of the DTC U1220?
- Faulty Audio and Video (AV) Control Unit
- Audio and Video Control Unit harness is open or shorted
- Audio and Video Control Unit circuit poor electrical connection
How to Fix the DTC U1220?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U1220 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the U1220 code?
Need more information on how to fix the U1220 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U1220 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- U1220 Infiniti — XM Serial Communication
- U1220 Nissan — XM Serial Communication
Frequently Asked Questions about U1220 Code
1. What does OBDII code U1220 mean?
The OBDII code U1220 indicates a problem with XM Serial Communication, suggesting an issue with the vehicle's satellite radio system.
2. What are common symptoms of OBDII code U1220?
Common symptoms of code U1220 can include loss of satellite radio signal, static or poor audio quality, and the display showing "XM Serial Communication Error."
3. What are the possible causes of OBDII code U1220?
Potential causes of code U1220 include a faulty XM satellite radio module, damaged wiring or connectors, software glitches, or issues with the vehicle's antenna.
4. How can I diagnose OBDII code U1220?
Diagnosing code U1220 may involve checking the connections to the XM module, inspecting the wiring for damage, and using a diagnostic scanner to retrieve specific error codes and data related to the XM Serial Communication.
5. How do I repair OBDII code U1220?
Repairing code U1220 may involve resetting the XM module, repairing or replacing damaged wiring or connectors, updating the satellite radio software, or replacing the XM module itself if necessary.
6. Can OBDII code U1220 cause other problems in the vehicle?
While code U1220 specifically relates to XM Serial Communication, unresolved issues with the satellite radio system may potentially lead to drainage on the vehicle's battery or affect other electrical systems.
7. Is it safe to continue driving with OBDII code U1220 present?
It is generally safe to continue driving with code U1220, but it is advisable to address the issue promptly to avoid potential inconvenience with the satellite radio system.
8. Can I fix OBDII code U1220 myself?
Depending on your technical skills and access to tools, you may be able to troubleshoot and repair code U1220 yourself by checking connections, inspecting wiring, or resetting the XM module. However, professional assistance may be necessary for more complex repairs.
9. How much does it cost to repair OBDII code U1220?
The cost of repairing code U1220 can vary widely depending on the underlying cause of the issue. Simple fixes like checking connections may be inexpensive, while replacing the XM module could be more costly.
10. Will resetting the vehicle's computer clear OBDII code U1220?
Resetting the vehicle's computer may temporarily clear the code, but if the underlying issue with XM Serial Communication persists, the code is likely to reappear. It is essential to diagnose and address the root cause of the problem to prevent the code from returning.
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