Airbag control unit with part number A2C30468000

What does the airbag control unit A2C30468000 do?

The airbag control unit A2C30468000 governs the restraint system (SRS) in Fiat. It checks the signals from the crash sensors and decides in a collision which airbags and seatbelt pretensioners are to be activated.

While driving, the unit monitors the system's components continuously. A detected fault appears as the airbag warning light in the instrument cluster.

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

Why does the control unit A2C30468000 fail?

The most common cause is crash data from an accident, even without an airbag being triggered; an ordinary diagnostic tool cannot erase it. In addition, ageing electronics, dry solder joints, moisture at plug connectors and voltage spikes come into question.

Stored crash data is therefore the first thing to consider when a unit shows a fault after an accident. The other causes concern the electronics themselves and their connections, for example through ageing, moisture or a voltage spike when starting.

How can you tell that the A2C30468000 is defective?

The warning signs are an error message in the instrument cluster, a diagnostic tool that cannot connect and a fault memory that cannot be erased. The airbag warning light also indicates a defect.

The signs in detail:

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

In an emergency, airbags and seatbelt pretensioners may not trigger in these cases. Prompt clarification is therefore advisable.

Which vehicles is the A2C30468000 fitted in?

The airbag control unit A2C30468000 is fitted in these vehicles: Fiat 500 312 (2007-2024).

These models appear in our assignment for the part number:

• Fiat 500 312 (2007-2024)

Comparing the part number on the label of the unit with this page only confirms that you have the right unit. Which cause applies, in the unit or in the wiring, is shown only by the fault memory, which you should have read out before removal.

For the same vehicles, we also repair control units with the part numbers 51782985, 51782986, 51848079, 51867767, 51870005, 51897810.

How does the repair of the A2C30468000 work?

First of all, have the fault memory read out; the log goes with the unit. Then disconnect the battery and remove the control unit. Afterwards, create a repair order online and send the unit in well packed.

Airbag24 inspects the unit on the test bench, repairs defective components, erases the stored crash data and tests the function. Usually, 3–4 working days pass until inspection, repair and function testing are complete.

Afterwards, your own unit goes back 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 A2C30468000 get to Airbag24?

Either the unit is sent off as a parcel, or you arrange a UPS collection for an extra charge. The return journey is likewise handled by UPS.

The printed repair order and a shockproof packed unit belong in the parcel.