Airbag control unit with part number P68233022AB

What does the airbag control unit P68233022AB do?

The airbag control unit P68233022AB coordinates the restraint system (SRS) of Fiat. It processes the readings from the crash sensors, decides in a crash within milliseconds whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

If the unit detects a fault, it reports it via the airbag warning light in the instrument cluster. You can therefore see the state of the system without any special effort.

After an accident, the control unit stores crash data and locks itself. This storage is part of how the unit operates.

Why does the control unit P68233022AB fail?

The most common cause is that crash data is stored on the P68233022AB, even when no airbag has deployed. Ordinary diagnostic tools cannot erase this data. Other causes include aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Stored crash data remains in the unit, and that is exactly what makes it the most common cause of a fault, even if the accident had no consequences for the occupants.

Electronic components age over time, and solder joints can go cold. Moisture and corrosion at the plugs impair the contact, and voltage spikes from a weak battery or jump-starting stress the circuitry.

How can you tell that the P68233022AB is defective?

Typical signs are the airbag warning light, which lights up permanently or intermittently, a fault message in the instrument cluster, a diagnostic tool with no connection to the P68233022AB, and a fault memory that cannot be cleared.

• Airbag warning light lights up permanently or intermittently
• Fault 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 possibly fail to trigger with such a defect. The warning should therefore be taken seriously.

Which vehicles is the P68233022AB fitted in?

The airbag control unit P68233022AB is fitted in these vehicles: Fiat 500 312 (2007-2024).

The following list shows the vehicles assigned to this part number.

• Fiat 500 312 (2007-2024)

Compare the part number on the label of the unit with this page. That only confirms that the unit is the correct one. Read out the fault memory beforehand as well, as it shows whether the control unit itself 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 P68233022AB work?

First, read out the fault memory and enclose the log. Then disconnect the battery, remove the control unit and create the repair order online. Then send the unit in, well packed.

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and runs a functional test. Processing usually takes 3–4 working days at Airbag24. Your own unit is then returned to you.

The sequence serves safety and must be followed. 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 P68233022AB get to Airbag24?

You send the P68233022AB as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back by UPS.

Place the printed repair order in the parcel and pack the unit shockproof.