Airbag control unit with part number 285010232

What is the function of Airbag Control Unit 285010232?

The airbag control unit with part number 285010232 is the central control unit (SRS ECU) for the occupant protection system in the second-generation Chevrolet Aveo (2011–2020). It processes signals from crash sensors and, in the event of a collision, deploys airbags and activates seatbelt pretensioners to protect occupants.

As the “brain” of the safety system, this control unit continuously monitors all connected components—such as sensors, airbag modules, and seatbelt pretensioners—for proper functionality. It analyzes the type and severity of an impact and, based on that assessment, activates the appropriate restraint systems within milliseconds.

Therefore, flawless operation of this component is essential for vehicle safety. In case of a malfunction or after an accident, the system is often fully disabled for safety reasons, indicated by the airbag warning light.

Why does Control Unit 285010232 fail?

The most common cause of failure for Control Unit 285010232 is the storage of crash data following an accident, which locks the unit. Other defects include internal errors manifested by non‑erasable fault codes such as B1378, as well as general software and communication issues.

After a crash, crash data is permanently stored in the control unit’s memory. This lockout is intentionally implemented by the manufacturer to force a complete system check and prevent the reuse of potentially damaged components. The unit must then be repaired or replaced.

Electronic malfunctions are also a frequent cause. These include software bugs, internal communication problems, or coding errors that appear in the fault memory and cannot be cleared. Fault code B1378 is a typical example of such an internal defect.

External factors like moisture, severe electrical interference in the vehicle’s electrical system, or natural aging of electronic components can also lead to malfunctions. Similar issues have been reported in variants with part numbers 96808099, 96442702, 5WY67032-95160, 5WY67133-95160, 96808107, and 96806848.

How do you recognize a defect in 285010232?

A defect in Control Unit 285010232 is primarily indicated by the airbag warning light that remains illuminated continuously or intermittently in the instrument cluster. Another clear sign is persistent fault codes in the fault memory that cannot be cleared using a diagnostic tool, especially code B1378.

The most noticeable symptom is the active airbag warning light, signaling to the driver that the entire occupant protection system is disabled and would not deploy in the event of a crash.

During a workshop diagnosis, faults are read out that point to an internal defect in the control unit. Typical messages include stored crash data or communication failures that reappear immediately even after attempts to clear them.

In rarer cases, the control unit may become completely unresponsive and refuse communication with the diagnostic tool, indicating a more serious internal failure.

In which vehicles is Control Unit 285010232 installed?

The airbag control unit with part number 285010232 was exclusively fitted in Chevrolet vehicles. It is specific to the second generation of the Chevrolet Aveo (model T250/T300), produced between 2011 and 2020.

At Airbag24, we repair Control Unit 285010232 for the following model and ensure full functionality after restoration:

Chevrolet Aveo, second generation (T250/T300), model years 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, and 2020.

How is 285010232 professionally repaired?

Professional repair is a purely electronic process that requires no mechanical replacement. At Airbag24, the control unit is first diagnosed, then its stored crash data and internal errors are erased through reprogramming. A final functional test confirms quality.

For targeted repair, it is ideal to have the fault memory read out before removal and include the printout with the package. Upon submission to Airbag24, a detailed analysis of the unit is performed to determine whether the issue involves stored crash data or another internal fault.

The core of the repair involves accessing the control unit’s internal memory using specialized software. There, crash data is deleted and error flags reset. If necessary, defective electronic components on the circuit board are repaired or replaced. Finally, functionality is verified, and the unit is coded for the specific vehicle.

The repaired control unit is fully functional again after repair and performs just like a new part. We offer 2 years' statutory liability for defects on all repairs. Please note that, as a general rule, only unopened units are accepted for repair to preserve warranty claims.