Airbag control unit with part number 9810154580

What does the airbag control unit 9810154580 do?

The airbag control unit 9810154580 controls the restraint system (SRS) of Citroën. It processes the measured values of the crash sensors and decides in an accident within milliseconds which airbags and seatbelt pretensioners trigger.

At the same time it monitors the connected components continuously. If it detects a fault, it shows it via the airbag warning light in the instrument cluster.

After an accident the unit stores crash data and locks itself. This makes it one of the central components for occupant safety.

Why does the control unit 9810154580 fail?

For the control unit 9810154580, the most common cause is crash data stored after an accident, even if no airbag has triggered.

No airbag triggering does not mean nothing is stored. You only see this finding when the unit is read out.

Other causes are aged electronic components, cold solder joints, and moisture and corrosion at plug connections.

Voltage spikes, for example from a weak battery or a jump-start, can also affect the control unit.

How can you tell that the 9810154580 is defective?

A defect in the control unit 9810154580 shows as the airbag warning light in the instrument cluster, as a fault message, or as the diagnostic tool being unable to establish a connection.

• The airbag warning light stays lit permanently or intermittently.
• A fault message appears in the instrument cluster.
• The diagnostic tool cannot connect to the control unit.
• The fault memory cannot be cleared.

Then it is possibly not ensured that airbags and seatbelt pretensioners will trigger in an emergency. You should not ignore such a warning.

Which vehicles is the 9810154580 fitted in?

The control unit 9810154580 is intended for vehicles of the make Citroën. It is fitted in these vehicles: Citroën C5 II 1st Facelift (2010-2012), II (2008-2010) and II 2nd Facelift (2012-2017).

The overview below lists the vehicles individually.

• Citroën C5 II 1st Facelift (2010-2012)
• Citroën C5 II (2008-2010)
• Citroën C5 II 2nd Facelift (2012-2017)

Two things help you. Comparing the part number on the label of the removed unit with this page only shows that it is the correct unit; it does not clarify any cause. Also have the fault memory read before removal, because only this result shows whether the control unit is defective or a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 9657456680, 9665266080, 9665558180, 9674290580.

How does the repair of the 9810154580 work?

First have the fault memory read and attach the log to the unit; then disconnect the battery and only then remove the control unit 9810154580. Next, create a repair order online and send in the well-packed unit.

Processing at Airbag24 usually takes 3–4 working days. During this time the unit is checked on the test bench, defective components are replaced and a function test is carried out.

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 9810154580 get to Airbag24?

For the control unit 9810154580 there are two options: you post the parcel yourself, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends your unit back by UPS.

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