Airbag control unit with part number P68312952AB

What does the airbag control unit P68312952AB do?

The airbag control unit P68312952AB is the link between the crash sensors and the airbags and seatbelt pretensioners in the vehicle from Fiat. It assesses the impact and, in an emergency, triggers the right restraint devices within milliseconds.

Even outside an accident, it checks the system without pause. Any fault it detects is shown by the airbag warning light in the instrument cluster.

In the event of an accident, the control unit stores crash data and locks itself. Only the repair lifts the lock.

Why does the control unit P68312952AB fail?

With the control unit P68312952AB, stored crash data from an accident is the most common cause, even if no airbag has deployed. A normal diagnostic tool cannot delete this data. Other causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

An accident without an airbag deploying can therefore still leave traces in the unit. During the repair, Airbag24 deletes this crash data.

The other causes have one thing in common: they develop gradually. Components age over time, solder joints can go cold, and damp attacks contacts.

Voltage spikes, for example from a weak battery or a jump start, can also harm the electronics.

How can you tell that the P68312952AB is defective?

A defect in the P68312952AB shows up in the airbag warning light when it stays on permanently or intermittently. Fault messages in the instrument cluster, a diagnostic tool without a connection to the control unit, or a fault memory that cannot be erased also point to a defect. In this case, the airbags and seatbelt pretensioners may not be able to deploy in an emergency.

The warning light is the clearest sign the vehicle gives. Therefore have the fault memory read out promptly.

Which vehicles is the P68312952AB fitted in?

The control unit P68312952AB is fitted in the following vehicles: Fiat 500 312 (2007-2024).

The overview shows which models this part number is assigned to:

• Fiat 500 312 (2007-2024)

Comparing the number on the label of the removed unit with this page gives you certainty that it is the right unit. Whether the control unit itself is defective or a plug or cable is causing the fault is shown by the fault memory. So have it read out beforehand.

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 P68312952AB work?

The steps start with you: have the fault memory read out, enclose the log, disconnect the battery and remove the control unit P68312952AB. Then create the repair order online and send the unit off well packed.

Airbag24 checks the unit on the test bench, repairs defective components, deletes the crash data and carries out a function test. Afterwards, your unit comes back to you.

Checking, repairing and testing at Airbag24 usually takes 3–4 working days. 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 P68312952AB get to Airbag24?

Either you send the unit P68312952AB as a parcel, or you book a UPS collection for an extra charge. Airbag24 sends the unit back by UPS after the repair.

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