U0020 Code – Low Speed CAN Bus

What are the Possible Causes of the Code U0020?
  • If other codes are present, diagnose other codes first
  • Faulty Control Module
  • Control Module harness is open or shorted
  • 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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