Airbag control unit with part number 00052091991

What does the airbag control unit 00052091991 do?

In Fiat, the airbag control unit 00052091991 evaluates the data from the crash sensors and decides in an accident which airbags and seatbelt pretensioners trigger. The unit belongs to the restraint system (SRS). After an accident, it stores crash data and locks itself.

The decision is made within milliseconds after the sensors have reported the impact. During normal operation, self-monitoring continues, and faults appear on the airbag warning light in the instrument cluster.

After an accident the unit creates the crash data memory, and afterwards it is locked.

Why does the control unit 00052091991 fail?

Stored crash data from an accident is the most common cause on the 00052091991, even if no airbag has deployed. In addition there are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes in the vehicle electrical system.

A standard diagnostic tool cannot remove the crash data.

Further causes include, among others:

• ageing of the electronic components
• solder joints that have gone cold
• moisture and corrosion at the plug connections
• voltage spikes in the vehicle electrical system, for example with a weak battery or a jump start

How can you tell that the 00052091991 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently as soon as something is wrong with the 00052091991. An error message may appear as well, or the diagnostic tool cannot reach the control unit. In that case, airbags and seatbelt pretensioners may not deploy in an emergency.

A fault memory that cannot be emptied with the diagnostic tool is also one of the signs. Especially when several signs appear at once, a check is the right next step.

Which vehicles is the 00052091991 fitted in?

The control unit 00052091991 is fitted in these vehicles: Fiat Tipo 356 (2016-2020).

The following overview lists the vehicles in which the unit is installed:

• Fiat Tipo 356 (2016-2020)

Comparing the part number on the label of the removed unit with this page only shows whether it is the right unit. Have the fault memory read out beforehand; the result shows whether the control unit is defective or whether a plug or cable is behind the fault.

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

How does the repair of the 00052091991 work?

For the 00052091991, first have the fault memory read out and attach the log to the unit. Only then disconnect the battery and remove the control unit. Next, create the repair order online and send the unit off well packed.

Airbag24 examines the unit on the test bench. Defective components are repaired and a function test is carried out. Processing there usually takes 3–4 working days, after which your own unit comes back 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 00052091991 get to Airbag24?

You either send the 00052091991 yourself as a parcel, or you book a UPS collection for an extra charge. Airbag24 then sends the repaired unit back to you by UPS.

Include the printed repair order with the parcel. Make sure the control unit is packed in a shock-proof way.