Airbag control unit with part number 52191343

What does the airbag control unit 52191343 do?

The airbag control unit 52191343 coordinates the restraint system (SRS) for Fiat. It evaluates the crash sensors and decides in a crash, within milliseconds, whether airbags and seatbelt pretensioners are triggered, and it monitors the system continuously.

The housing also carries the manufacturer number Bosch 0285020051. The signals are evaluated within milliseconds.

It shows detected faults via the airbag warning light. After an accident it stores crash data and locks itself.

Why does the control unit 52191343 fail?

The most common cause of a failure of the 52191343 is crash data from an accident, even if no airbag has deployed. Aged components, cold solder joints, moisture and corrosion at plugs, and voltage spikes come into consideration as well.

A normal diagnostic tool cannot delete this crash data. The repair at Airbag24 therefore removes it in a targeted way.

The other causes concern the electronics themselves and their connections. Components age, solder joints can be cold, moisture attacks plug connections, and voltage spikes occur, for example with a weak battery or when starting with an external power source.

How can you tell that the 52191343 is defective?

A defect in the 52191343 shows up through the airbag warning light in the instrument cluster, through error messages and through a lack of communication with the diagnostic tool.

• airbag warning light on permanently or intermittently
• error message in the instrument cluster
• diagnostic tool receives no connection to the control unit
• fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may then not trigger. Please have the system checked promptly.

Which vehicles is the 52191343 fitted in?

The control unit 52191343 is fitted in these vehicles: Fiat 500 312 (2007-2024).

You can find the overview of vehicles here:

• Fiat 500 312 (2007-2024)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the right unit. Have the fault memory read out beforehand, because 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 51782985, 51870005, 51897810, 51918659, 51963734, 519637734.

How does the repair of the 52191343 work?

First have the fault memory read out and attach the log. Then disconnect the battery and remove the control unit. Afterwards create a repair order online and send the unit in well packed.

The order serves safety. Airbag24 checks the unit on the test bench, finds and repairs defective components, deletes the crash data and carries out a function test. Then your own unit goes back to you.

Processing at Airbag24 usually takes 3–4 working days, and this covers only testing, repairing and checking. 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 52191343 get to Airbag24?

You send the control unit 52191343 as a parcel, or you book a UPS collection for an extra charge. After the repair, UPS brings the unit back to you.

Place the printed repair order in the parcel and pack the unit shock-proof.