What is a Fiat Ulysse 220 airbag control unit?
The Fiat Ulysse 220 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It continuously monitors the vehicle's crash detection sensors, stores crash data, and ensures the proper functioning of all airbag modules and seatbelt pretensioners in the vehicle.
This vital component is designed for first-generation Ulysse vehicles from 1994 to 2002. It operates at 12 volts and is compatible with engine variants such as the 1.9 TD diesel and 2.0 petrol.
The control unit is typically located under the driver's seat on the right side and is connected via special yellow airbag connectors. It offers integrated diagnostic capability for monitoring and detecting faults in the airbag system.
Why is the Fiat Ulysse 220 airbag control unit defective?
A Fiat Ulysse 220 airbag control unit can fail due to internal electronic errors, overvoltage damage, or communication problems that impair its function. These defects often prevent the airbags from properly deploying and result in an illuminated airbag warning light on the dashboard.
Common causes of a defect include age-related wear and tear on components or damage caused by external electrical influences. A faulty control unit can prevent the airbag system from deploying correctly in an emergency.
A detailed diagnosis at a workshop is essential to identify the exact cause of the fault. Repairing or replacing the control unit is then necessary to restore the vehicle's safety.
Common error codes for Fiat Ulysse 220 airbag control unit repair
When repairing the Fiat Ulysse 220 airbag control unit, specific error codes indicate problems with the control unit itself, not with sensors or seatbelt pretensioners. These codes are crucial for an accurate diagnosis and identifying the need for control unit repair or replacement.
- B1000 → Control unit communication error → The airbag control unit cannot communicate with the diagnostic device.
- 65535 → Control unit defective (internal error) → An internal hardware or software error blocks the function of the airbag control unit.
- 93F9 → Internal control unit error (overvoltage damage) → The airbag control unit has a hardware defect, often caused by overvoltage.
What part numbers are available for the Fiat Ulysse 220 airbag control unit repair?
For the Fiat Ulysse 220 airbag control unit repair, the following OEM part numbers are verified as original and correct: 1480999080, 550777700, and 550539700. These numbers are essential to ensure compatibility when replacing or repairing the airbag control unit for your vehicle model.
- 1480999080 (Fiat Original)
- 550777700 (Fiat Original)
- 550539700 (Fiat Original)
These Fiat original part numbers are listed specifically for the airbag control unit of the Fiat Ulysse (Type 220, built 1994–2002). They have been confirmed by several independent sources as an exact fit.
Alternative OEM numbers from suppliers such as Bosch or Continental that are specific to this airbag control unit have not been verified. In case of failure, please use these numbers as a reference for Fiat Ulysse 220 airbag control unit repair.