Airbag control unit with part number 9802735280

What does the airbag control unit 9802735280 do?

The airbag control unit 9802735280 forms the central control of the restraint system (SRS) in Peugeot. It evaluates the crash sensors and decides in an accident, within milliseconds, which airbags and seatbelt pretensioners are triggered.

The unit checks the condition of the system continuously. A fault it detects is reported via the airbag warning light.

After an accident it stores crash data and remains locked.

Why does the control unit 9802735280 fail?

The most common cause lies in crash data stored after an accident, even if no airbag has deployed. A standard diagnostic tool cannot remove it. Ageing, moisture and voltage spikes also play a role.

Airbag24 removes this data from the unit only during the repair.

The other causes at a glance:

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

Which of these applies to your unit only becomes clear when the fault memory is read out.

How can you tell that the 9802735280 is defective?

Typical signs are an airbag warning light in the instrument cluster that lights up permanently or intermittently, together with a fault message in the instrument cluster. In addition, no connection to the control unit can be made with the diagnostic tool, and the fault memory cannot be cleared. The airbags and seatbelt pretensioners may then fail to trigger in an emergency.

For you, the warning light is the first visible sign that something in the system is wrong.

Whether the fault lies in the control unit itself or in the wiring can only be determined clearly by reading out the fault memory.

Which vehicles is the 9802735280 fitted in?

The control unit 9802735280 is found in these vehicles: Peugeot 308 II (2013-2017) and II Facelift (2017-2021).

The assignment is shown below as a list.

• 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 confirms that you have the right unit, nothing more. Have the fault memory read out beforehand; only this shows whether the control unit is defective or whether 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 9802735280 work?

First have the fault memory read out. Then disconnect the battery, and only then remove the control unit 9802735280. Next, create a repair order online and send the unit in well packed, enclosing the log.

Airbag24 checks the unit on the test bench, replaces defective components and removes the stored crash data. Finally a function test is run, after which your own unit goes back to you.

Processing at Airbag24 usually takes 3–4 working days. 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 9802735280 get to Airbag24?

You send the control unit 9802735280 as a parcel or book a UPS collection for an extra charge. The return to you after the repair is made by UPS.

The printed repair order goes into the parcel. Pack the unit shockproof.