Airbag control unit with part number 00520838260

What does the airbag control unit 00520838260 do?

At Fiat, the airbag control unit 00520838260 controls the restraint system, or SRS for short. It reads the signals from the crash sensors, decides in an accident within milliseconds whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously. If it detects a fault, it reports this via the airbag warning light.

After an impact, the unit stores crash data and then locks itself.

The control runs in the background without you noticing it. It writes faults to the fault memory, from which workshops read them out.

Why does the control unit 00520838260 fail?

With the 00520838260, stored crash data after an accident is the most common cause, even if no airbag has deployed; a normal diagnostic tool cannot delete it. In addition, ageing electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes come into consideration.

The crash data remains in the unit even when the airbags were left undamaged. Airbag24 deletes it as part of the repair, so that the unit can then be checked as a whole.

Beyond the crash data, other factors also have an effect. Electronics age over time, solder joints can go cold, moisture and corrosion impair plug connectors, and voltage spikes occur, for example with a weak battery or a jump start.

How can you tell that the 00520838260 is defective?

The airbag warning light in the instrument cluster stays on permanently or only intermittently, a fault message appears in the instrument cluster, and the diagnostic tool does not get a connection to the control unit 00520838260. In addition, the fault memory cannot be erased. In this case, the airbags and seatbelt pretensioners may not be able to deploy in an emergency.

The warning light is the signal that shows the defect. Have the cause checked promptly.

A fault message in the instrument cluster, a diagnostic tool without a connection and a fault memory that cannot be reset also point to a problem.

Which vehicles is the 00520838260 fitted in?

The airbag control unit 00520838260 is fitted in these vehicles: Fiat Tipo 356 (2016-2020).

The models to which this part number belongs are listed below.

• Fiat Tipo 356 (2016-2020)

Comparing the part number on the label of the removed unit with this page only confirms that you have the right unit. Also have the fault memory read out before removal; only this result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 00052090728, 156348104, 208055, 52017547.

How does the repair of the 00520838260 work?

For the 00520838260, first have the fault memory read out and enclose the log, then disconnect the battery and remove the control unit. Next, create the repair order online and send the unit off well packed. Airbag24 needs 3–4 working days for checking, repairing and testing.

In the test bench, Airbag24 examines the unit, replaces defective components and deletes the stored crash data. A function test follows, after which the unit returns 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 00520838260 get to Airbag24?

Either you send the control unit 00520838260 as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

Enclose the printed repair order with the parcel and pack the control unit shock-proof.