Airbag control unit with part number 9815623780

What does the airbag control unit 9815623780 do?

The 9815623780 is the airbag control unit of the SRS restraint system in Peugeot. It evaluates the crash sensors, decides within milliseconds in an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

If the unit detects a fault, it displays it via the airbag warning light in the instrument cluster. For drivers, this light is the first indication of a fault.

After an accident, the control unit stores crash data and locks itself. Storing this data is part of how the unit works.

Why does the control unit 9815623780 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Other causes are possible.

These include ageing electronic components, cold solder joints, moisture and corrosion at the plug connections, and voltage spikes. The latter can arise, for example, from a weak battery or from jump-starting.

Which cause applies to your unit is shown by the examination on the test bench. Airbag24 deletes the crash data during the repair.

How can you tell that the 9815623780 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently. Accompanying this, a fault message appears, the diagnostic tool does not find the control unit, and the fault memory cannot be cleared.

If these signs are present, airbags and seatbelt pretensioners may fail to deploy in an emergency. A finding like this should therefore be checked quickly.

Which vehicles is the 9815623780 fitted in?

The 9815623780 is fitted in these vehicles: Peugeot 308 II (2013-2017) and II Facelift (2017-2021).

The suitable models are recorded for this part number:

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

Have the fault memory read out before removing the control unit. This makes it clear whether the control unit is defective or whether a plug or cable triggers the message. Then compare the part number on the label of the removed unit with this page.

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

How does the repair of the 9815623780 work?

First, read out the fault memory and enclose the log with the unit. Then disconnect the battery, remove the control unit, create the repair order online and send the well-packed unit in. Airbag24 repairs it and sends it back to you.

At Airbag24, the unit is examined on the test bench. Defective components are replaced, the stored crash data is deleted, and a function test follows.

Processing at Airbag24 usually takes 3–4 working days. This time covers only checking, repairing and testing.

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 9815623780 get to Airbag24?

You send the control unit as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

Place the printed repair order in the parcel and pack the control unit shock-resistant.