Airbag control unit with part number 9803946680

What does the airbag control unit 9803946680 do?

The airbag control unit 9803946680 is the central control unit of the restraint system (SRS) for Peugeot. It evaluates the signals from the crash sensors and determines in a crash, within milliseconds, which airbags and seatbelt pretensioners are triggered.

The unit monitors the system continuously and checks the connected components. It shows faults via the airbag warning light.

After an accident it stores crash data and locks itself.

Why does the control unit 9803946680 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Crash data remains in the memory until it is removed during the repair. Airbag24 takes care of this step.

The other causes tend to develop gradually. Electronic components age, solder joints can stay cold, and moisture attacks the contacts.

Voltage spikes occur, for example, with a weak battery or when jump-starting.

How can you tell that the 9803946680 is defective?

If the airbag warning light in the instrument cluster lights up permanently or intermittently, there is a fault. In addition there are an error message, no connection between the diagnostic tool and the 9803946680, and a fault memory that cannot be cleared.

As long as the fault persists, airbags and seatbelt pretensioners may not be able to trigger in an emergency. The light is therefore a warning that must be checked.

Which vehicles is the 9803946680 fitted in?

The airbag control unit 9803946680 is installed in vehicles from Peugeot. It is fitted in these vehicles: Peugeot 308 II (2013-2017) and II Facelift (2017-2021).

The individual models are listed here:

• Peugeot 308 II (2013-2017)
• Peugeot 308 II Facelift (2017-2021)

Compare the part number on the label of the removed unit with this page. This only shows that it is the right unit. Also have the fault memory read out in advance, because only the log clarifies whether the control unit itself or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 624926000, 9807568180.

How does the repair of the 9803946680 work?

First have the fault memory read out and attach the log, then disconnect the battery; only then is the 9803946680 removed. At Airbag24, processing usually takes 3–4 working days.

Then create a repair order online and pack the unit well before sending it.

Airbag24 checks the unit on the test bench, replaces defective components, deletes stored crash data and carries out a function test. Your own unit is then sent 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 9803946680 get to Airbag24?

You send the control unit 9803946680 as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

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