Airbag control unit with part number 9802735380

What does the airbag control unit 9802735380 do?

The airbag control unit 9802735380 coordinates the restraint system (SRS) at Peugeot. It receives the messages from the crash sensors and triggers the appropriate airbags and seatbelt pretensioners within milliseconds in an emergency.

In addition, it checks the function of the system continuously. If it detects a fault, it switches on the airbag warning light. After an accident it stores crash data and then locks itself.

Why does the control unit 9802735380 fail?

The most common cause is crash data from an earlier accident, even if no airbag was triggered in that accident. Also possible are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump start.

Crash data cannot be erased with a common diagnostic tool, which is why the fault persists until the data has been removed.

The other causes tend to be gradual. Electronics age, solder joints can go cold, and moisture attacks the contacts. Voltage spikes stress the unit mainly when the battery is weak or a vehicle is started with a jump start.

How can you tell that the 9802735380 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and an additional fault message appears. The diagnostic tool does not reach the control unit, and the fault memory cannot be erased. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

• Airbag warning light, permanent or intermittent
• Fault message in the instrument cluster
• No connection between diagnostic tool and control unit
• Fault memory that cannot be cleared

These indicators must be taken seriously. The light reports the defect before the emergency occurs.

Which vehicles is the 9802735380 fitted in?

The airbag control unit 9802735380 is fitted in these vehicles: Peugeot 308 II (2013-2017) and II Facelift (2017-2021).

The list below names the vehicles in which this unit is known to be fitted.

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

(a) Comparing the part number on the label of the removed unit with this page only ensures that it is the right unit. (b) Have the fault memory read out beforehand. Only this shows whether the control unit itself 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 9802735380 work?

First have the fault memory read out and enclose the report. Then disconnect the battery and only afterwards remove the control unit 9802735380. Create the repair order online, then send in the unit.

Airbag24 checks the unit, replaces defective components and erases the stored crash data. A function test follows. 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 9802735380 get to Airbag24?

You send the control unit 9802735380 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns the unit to you by UPS.

Pack the unit shock-proof and put the printed repair order in the parcel.