Airbag control unit with part number 9803837180

What does the airbag control unit 9803837180 do?

The airbag control unit 9803837180 is the central control unit of the restraint system (SRS) in Citroën. It evaluates the crash sensors, determines the triggering of the airbags and seatbelt pretensioners within milliseconds, and monitors the system without interruption.

After an accident the control unit stores crash data, and in this state it is locked. Faults are indicated by the airbag warning light.

Why does the control unit 9803837180 fail?

Stored crash data is the most common cause, even if no airbag has triggered. A normal diagnostic tool cannot erase it, while Airbag24 erases it during the repair. Aged electronics, moisture and corrosion at plug connections, cold solder joints and voltage spikes may also come into consideration.

Crash data is a record of the event that remains in the unit. Whether one of the other points also applies only the investigation shows.

How can you tell that the 9803837180 is defective?

A defect shows up in the airbag warning light, which burns permanently or intermittently, in a fault message in the instrument cluster, in a missing connection to the diagnostic tool, or in a fault memory that cannot be cleared. Then the 9803837180 must be checked.

You can rely on the warning light in the instrument cluster, because it shows every fault detected. If the system is disturbed, airbags and seatbelt pretensioners may not be able to trigger in an emergency. For this reason, do not postpone the check.

Which vehicles is the 9803837180 fitted in?

Pay attention to the model details when removing it. The 9803837180 is fitted in these vehicles: Citroën C3 Picasso I (2009-2012) and I Facelift (2012-2017).

The part number is stored for these vehicles:

• Citroën C3 Picasso I (2009-2012)
• Citroën C3 Picasso I Facelift (2012-2017)

Comparing the label of the removed unit with this page only confirms that you have the right unit. Have the fault memory read out beforehand, because only it shows whether the control unit or a plug or cable is defective.

For the same vehicles, we also repair control units with the part numbers 9677253280.

How does the repair of the 9803837180 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, and only after that remove the 9803837180. Next create a repair order online and send in the well-packed unit. Airbag24 checks it, replaces defective components, erases the crash data and carries out a functional test.

Work at Airbag24 usually takes 3–4 working days. 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 9803837180 get to Airbag24?

You send the unit as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 sends the 9803837180 back to you by UPS.

Enclose the printed repair order and pack the unit shock-proof.