Airbag control unit with part number 50567379

What is the function of Airbag Control Unit 50567379?

The airbag control unit with part number 50567379 is the central control module for the occupant safety system (SRS) in the Alfa Romeo Stelvio (949). It processes data from the acceleration sensors and, in the event of a crash, determines whether and which restraint systems—such as airbags and seatbelt pretensioners—should be deployed to provide optimal protection for occupants.

As the “brain” of the safety system, it is responsible for monitoring all connected components. The unit is directly linked to various sensors throughout the vehicle and communicates with other control modules via the CAN bus system. It ensures that the entire system remains operational at all times and alerts the driver to malfunctions through the SRS warning light.

This control unit is also known under related part numbers 50543842, 285013327, 50543843, 50558474, and 50558475. A repair restores full functionality, allowing it to perform just like a new component.

Why does control unit 50567379 fail?

The most common cause of failure for control unit 50567379 is the storage of crash data following an accident. This data permanently locks the unit and cannot be cleared using standard diagnostic tools. Another reason is internal electronic faults, often indicated by error codes such as B1111 (control unit defective), which activate the SRS warning light.

After any crash event—even a minor one—the control unit disables airbag deployment for safety reasons. This lock is hard-coded into the software to prevent unintended re‑activation. Professional repair is required to erase this data and reset the unit.

In addition to crash data, communication issues with the vehicle’s electrical network, software errors, or problems with internal coding can also lead to failure. In some cases, the root cause lies externally—for example, faulty wiring, connectors, or contacts on seatbelt buckles or beneath the seats. Therefore, it is advisable to read out the fault memory before removing the control unit to refine the diagnosis.

How do you recognize a defect in 50567379?

The clearest symptom of a defect in control unit 50567379 is a continuously illuminated or flashing SRS airbag warning light on the instrument cluster. Often, the fault memory contains an unerasable error code indicating either an internal malfunction or stored crash data, signaling that the entire airbag system has been deactivated.

During workshop diagnostics, it frequently becomes apparent that the control unit no longer responds to requests or reports specific errors such as B1111 (control unit defective). In this state, the system is no longer functional, posing a significant safety risk and requiring immediate inspection.

Another telltale sign is when the airbag warning light remains on after an accident, even though all visible damage and activated components—such as airbags or seatbelt pretensioners—have already been replaced. This clearly points to stored crash data within the control unit.

In which vehicles is control unit 50567379 installed?

Repair of the airbag control unit with part number 50567379 is specifically relevant for the Alfa Romeo Stelvio. At Airbag24, we professionally refurbish this component for the entire model range, restoring full safety and functionality to your vehicle.

At Airbag24, we service part number 50567379 for the following models:

Alfa Romeo Stelvio (Model series 949, manufactured from 2017–2023)

Alfa Romeo Stelvio Facelift (Model series 949, produced from 2023 onward)

How does the repair of 50567379 proceed at Airbag24?

The repair process at Airbag24 is designed for fast, reliable restoration. After placing your online order and shipping the removed control unit, our technicians conduct a systematic analysis to pinpoint the exact cause of the fault. Subsequently, crash data is erased, defective components are replaced, and the unit is restored to factory settings.

Before removal, it is ideal to read out the fault memory to support the diagnosis. Upon receipt at Airbag24, the unit undergoes testing with specialized diagnostic equipment. Repairs focus on eliminating stored error codes—especially erasing crash data or resolving internal electronic faults.

Following successful refurbishment, the control unit undergoes comprehensive functional testing to ensure it operates as if brand new. We offer 2 years' statutory liability for defects on all repairs. After reinstalling the unit in the vehicle, only the vehicle’s fault memory needs to be cleared.