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U1220 Code – XM Serial Communication

What are the Possible Causes of the Code 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
  • Need help with this OBD II code? Our mechanics are available within west Michigan to help. Outside of our service area? Visit our Car Help Section where you can ask questions and get answers.

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