Airbag control unit with part number 9644903380

What does the airbag control unit 9644903380 do?

The airbag control unit 9644903380 controls the restraint system (SRS) in Peugeot. It checks the signals from the crash sensors and triggers the appropriate airbags and seatbelt pretensioners in an accident, within fractions of a second.

The device monitors the system throughout the entire journey. If a fault is detected, it indicates this via the airbag warning light, so that you can act.

After an accident the control unit stores crash data and locks itself.

Why does the control unit 9644903380 fail?

The most common cause is crash data from an accident, even if no airbag has deployed. A standard diagnostic tool cannot erase it, and Airbag24 deletes it during the repair. Other causes include aged electronic components, cold solder joints, moisture and corrosion at connectors, and voltage spikes.

The crash data remains in the memory even if the event did not trigger anything. An ordinary diagnostic scanner cannot reach it for erasing, so it does not help in this case.

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

How can you tell that the 9644903380 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, a fault message appears, the diagnostic tool has no connection to the control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not deploy.

A warning light that stays on permanently is the clearest sign. It can also light up only intermittently, and that too indicates a fault in the restraint system.

Have the finding checked promptly, before the warning is ignored for a long time.

Which vehicles is the 9644903380 fitted in?

The airbag control unit 9644903380 is fitted in these vehicles: Peugeot 206 I (1998-2003) and I Facelift (2003-2009).

The list of known vehicles follows directly below.

• Peugeot 206 I (1998-2003)
• Peugeot 206 I Facelift (2003-2009)

(a) Compare the part number on the label of the removed unit with this page, so that you know for certain that it is the correct unit. (b) Have the fault memory read out beforehand, because only that shows whether the control unit itself is the cause or a connector or cable.

For the same vehicles, we also repair control units with the part numbers 550 54 15 00, 602 32 73 00, 6547WJ, 9635268880, 9636894080, 9641478080.

How does the repair of the 9644903380 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, remove the control unit only afterwards, create a repair order online and send in the well-packed device. Airbag24 then tests it, repairs defective components, deletes the crash data and carries out a function test.

This order protects you while working on the vehicle, because the read-out comes before removal. Pack the device completely before you send it.

Airbag24 usually needs 3–4 working days for checking, repairing and testing. Afterwards your own, repaired 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 9644903380 get to Airbag24?

You send the control unit 9644903380 as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 returns it to you by UPS.

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