U0001 Code – High Speed CAN Communication Bus

What are the Possible Causes of the Code U1798?
  • Faulty External Access Doors
  • External Access Doors harness is open or shorted
  • External Access Doors circuit poor electrical connection
  • Control Module 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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