Airbag control unit with part number 9674290680

What does the airbag control unit 9674290680 do?

The airbag control unit 9674290680 controls the restraint system (SRS) of Citroën. It evaluates the signals from the crash sensors, decides in an accident within milliseconds on airbags and seatbelt pretensioners, and monitors the system continuously. It shows faults via the airbag warning light.

After an accident the unit stores crash data and locks itself. The sensors send their readings continuously to the control unit.

Why does the control unit 9674290680 fail?

The most common cause is crash data from an accident, even if no airbag has triggered. A normal diagnostic tool cannot erase it. In addition, units fail due to aged electronics, cold solder joints, moisture, corrosion and voltage spikes.

Airbag24 erases the crash data during the repair. The other causes in detail:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump-start

How can you tell that the 9674290680 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. A fault message appears in the instrument cluster, the diagnostic tool cannot find the control unit, and the fault memory cannot be cleared.

Airbags and seatbelt pretensioners may then possibly not trigger in an emergency. Follow up on the warning promptly.

Which vehicles is the 9674290680 fitted in?

The control unit 9674290680 is fitted in these vehicles: Citroën C5 II 1st Facelift (2010-2012), II (2008-2010) and II 2nd Facelift (2012-2017).

These vehicles are known to us with the unit:

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

Comparing the part number on the label of the removed unit with this page makes sure you have the correct unit. Having the fault memory read beforehand, on the other hand, 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 9674290680 work?

Reading the fault memory comes first; attach the log. Only after disconnecting the battery do you remove the control unit. Processing at Airbag24 usually takes 3–4 working days.

You then create a repair order online and pack the unit well before sending it in.

Airbag24 checks the unit on the test bench, repairs defective components, erases the crash data and carries out a function test. Afterwards your own unit is returned 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 9674290680 get to Airbag24?

You send the control unit as a parcel or book a UPS collection for an extra charge. After the repair, UPS brings the unit from Airbag24 back to you.

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