Airbag control unit with part number A2C53332369

What does the airbag control unit A2C53332369 do?

The airbag control unit A2C53332369 controls the restraint system (SRS) of Fiat. In a collision it evaluates the crash sensors and determines within milliseconds which airbags and seatbelt pretensioners are triggered.

In addition, the unit continuously checks the function of the entire system. If it detects a fault, it reports this via the airbag warning light in the instrument cluster.

If an accident occurs, the control unit stores the crash data and then locks itself.

Why does the control unit A2C53332369 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. A normal diagnostic tool cannot erase it. Aged components, moisture at contacts and voltage spikes are also possible causes.

The crash data sits in the unit itself, while the other causes concern the electronics and their connections. Electronic components age over time, solder joints can go cold, and moisture or corrosion attacks the plugs. Voltage spikes, for example from a weak battery or from starting with external power, can also affect the unit.

How can you tell that the A2C53332369 is defective?

Typical signs are a fault message in the instrument cluster, a diagnostic tool that cannot connect to the control unit, and a fault memory that cannot be cleared. If one of these appears, have the system checked.

The airbag warning light in the instrument cluster stays on permanently or intermittently. While it is lit, airbags and seatbelt pretensioners may fail to trigger in an emergency.

Do not ignore the warning light; have the cause clarified promptly.

Which vehicles is the A2C53332369 fitted in?

The airbag control unit A2C53332369 is fitted in these vehicles: Fiat Punto 199 (2005-2018).

The following vehicles are assigned to this part number:

• Fiat Punto 199 (2005-2018)

First compare the part number on the label of the removed unit with this page, so that you can be sure you have the correct unit. Have the fault memory read out before removal, because only this log shows whether the control unit itself is faulty or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 391035, 391156, 51719091, 51719092, 51719094, 51747601.

How does the repair of the A2C53332369 work?

You first have the fault memory read out and enclose the log. Then you disconnect the battery and only afterwards remove the control unit. Next, create a repair order online and send in the unit well packed. Airbag24 checks it, replaces defective components, deletes the crash data and carries out a function test.

As a rule, checking, repairing and testing at Airbag24 take 3–4 working days. Afterwards Airbag24 returns your own, repaired unit to you.

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 A2C53332369 get to Airbag24?

Either you send the unit as a parcel, or you book a UPS collection for an extra charge. The return after the repair is also made by UPS.

Enclose the printed repair order with the parcel; the packaging must protect the unit against impacts.