Obdaryn

U3000Airbag control unit internal fault

  • Ford code · Airbag (SRS)
  • Lights a warning lamp
How the car detects it
U3000 is the standard 'control module' code; in Ford's airbag unit (RCM) it reports a fault of the unit itself. With failure type 46 (calibration memory) or 49 (internal electronics) Ford's chart calls for a new RCM, set up with the car's as-built data; type 4A means a wrong part number is fitted. While an airbag fault is stored, the affected airbag or pretensioner may not deploy in a crash. Have it repaired before relying on it. Never probe airbag connectors with a meter: that can fire the airbag.
What you may notice
  • Airbag warning light
Likely causes
  • PossibleInternal fault of the airbag control unit
  • RareWrong or second-hand airbag unit fitted

From Obdaryn's Ford pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.