Airbag control unit with part number 00052211320

What does the airbag control unit 00052211320 do?

The airbag control unit 00052211320 belongs to the restraint system (SRS) of Fiat. It processes the readings from the crash sensors, selects the appropriate airbags and seatbelt pretensioners in an accident within milliseconds, and checks the system continuously. After an accident, it stores crash data and locks itself.

If the control unit detects a fault, it switches on the airbag warning light in the instrument cluster. This makes the fault visible without a diagnostic tool having to be connected first.

Why does the control unit 00052211320 fail?

Stored crash data is the most common cause, even if no airbag was triggered, and a normal diagnostic tool does not erase it. Further causes are aged electronic components, cold solder joints, moisture and corrosion, as well as voltage spikes.

That crash data is held in memory says nothing about which component is defective. Only the test on the test bench answers that question.

The further causes at a glance:

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

How can you tell that the 00052211320 is defective?

Typical signs are an airbag warning light that lights up permanently or intermittently, an error message in the instrument cluster, and a fault memory that cannot be cleared. A diagnostic tool that has no connection to the control unit 00052211320 also indicates this.

The signs in detail:

• airbag warning light lights up permanently or intermittently
• error message in the instrument cluster
• no connection between the diagnostic tool and the control unit
• fault memory cannot be cleared

With such a finding, airbags and seatbelt pretensioners may possibly not trigger in an accident.

Which vehicles is the 00052211320 fitted in?

The allocation comes from the data held by Airbag24 for this part number. The airbag control unit 00052211320 is fitted in these vehicles: Fiat Tipo 356 Facelift (from 2020).

The list shows the vehicles allocated to this part number.

• Fiat Tipo 356 Facelift (from 2020)

A comparison of the part number on the label of the removed unit with this page only ensures that it is the correct unit. Whether the control unit is defective or whether a plug or a cable is the cause is shown only by a fault memory read out in advance.

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

How does the repair of the 00052211320 work?

First, have the fault memory read out, then disconnect the battery and only now remove the control unit 00052211320. Testing, repair and function testing at Airbag24 usually take 3–4 working days.

Then create a repair order online and send in the unit well packed, with the log enclosed. Airbag24 checks it on the test bench, repairs defective components and carries out a function test. Your own unit is then returned to you. With this control unit, erasing the crash data is often not possible. If the crash data needs to be erased, please contact us briefly before sending the unit in – we will check your part number.

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 00052211320 get to Airbag24?

The unit goes to Airbag24 as a parcel, alternatively UPS collects it for an extra charge. After the repair, UPS returns the control unit 00052211320 to you.

Pack the unit shock-resistant and put the printed repair order into the parcel.