Airbag control unit with part number 285556514R

What does the airbag control unit 285556514R do?

The airbag control unit 285556514R coordinates the restraint system (SRS) for Dacia. It receives the signals from the crash sensors, determines in a collision which airbags and seatbelt pretensioners fire, and informs via the airbag warning light in case of faults.

While driving, the control unit continuously checks the sensors, wiring and actuators of the system. If it finds a deviation, it stores it.

After an accident the control unit writes crash data and locks itself.

Why does the control unit 285556514R fail?

The most common cause on the 285556514R is crash data stored after an accident, even if no airbag has deployed. These cannot be erased with a normal diagnostic tool; Airbag24 erases them during the repair. Other causes are aged components and moisture.

Even an event without airbag deployment can leave crash data behind.

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connectors
• voltage spikes, for example from a weak battery or a jump start

Which of these applies is shown only by the examination at Airbag24.

How can you tell that the 285556514R is defective?

A fault on the 285556514R can be recognised by the airbag warning light, fault messages and a fault memory that cannot be cleared. A diagnostic tool without connection to the control unit also points to a fault.

The airbag warning light in the instrument cluster lights up permanently or intermittently. Then you should not ignore it.

In an emergency, airbags and seatbelt pretensioners may not be able to deploy if the control unit has a fault. Fault messages in the instrument cluster and a diagnostic tool that cannot access the unit are therefore clear warning signs.

Which vehicles is the 285556514R fitted in?

The control unit 285556514R is used in these vehicles: Dacia Spring I (from 2021). Whether your car belongs to them is shown by comparing the label of the removed unit.

The vehicles that are assigned to this number are listed here:

• Dacia Spring I (from 2021)

Comparing the part number with the label confirms that you have the correct unit. Have the fault memory read out beforehand, because only the result shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 985107594R, A3C07032900.

How does the repair of the 285556514R work?

First the fault memory of the 285556514R is read out, and the log belongs with the unit. Then disconnect the battery and remove the control unit. At Airbag24 it is checked, defective components are repaired, crash data erased and a function test run finally. Processing at Airbag24 usually takes 3–4 working days.

Only then create the repair order online and pack the unit carefully.

Your own unit then comes back to you repaired.

Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 285556514R get to Airbag24?

You send the control unit 285556514R yourself or book a UPS collection for an extra charge. Airbag24 sends it back by UPS after the repair. The printed repair order goes into the parcel, and the unit must be packed shock-proof.

Secure the unit in the carton with filling material so that it cannot shift.