U0020

Low Speed CAN Communication Bus Performance

DTC U0020, sometimes indicated as U002000 is an OBD diagnostic trouble code indicating a generic fault with the vehicle user network.

  • U0020: Low Speed CAN Communication Bus Performance
  • U0020: Controller area network (CAN) data bus, low speed bus – performance problem
  • U0020 00: Controller area network (CAN) data bus, low speed bus - performance problem

DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • PIT5631 - ELECTRICAL SYSTEM
    CHEVROLET: This preliminary information communicateanissuewith thevideo processing control module setting a false dtc U0020 and advises dealership to ignore it.
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