U0299

Lost Communication With DC to DC Converter Control Module "B"

DTC U0299, sometimes indicated as U029900 is an OBD diagnostic trouble code indicating a generic fault with the vehicle user network.

  • U0299: Lost Communication With DC to DC Converter Control Module "B"
  • U0299: Lost communication with DC to DC converter control module B
  • U0299 00: Lost communication with DC to DC converter control module B

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