Airbag control unit with part number 9659847880

What does the airbag control unit 9659847880 do?

The airbag control unit 9659847880 forms the central control of the restraint system (SRS) for Peugeot vehicles. It evaluates the crash sensors, selects the appropriate airbags and seatbelt pretensioners in an accident within milliseconds, and monitors the system continuously. It indicates faults via the airbag warning light.

After an accident the unit stores crash data and locks itself. It also manages the fault memory, from which workshops and diagnostic tools read the entries.

Why does the control unit 9659847880 fail?

The most common cause on the 9659847880 is crash data stored after an accident, which can arise even without a deployed airbag; a normal diagnostic tool cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Whether crash data is in the unit is only established by reading it out, because no airbag has to have deployed for it to be stored.

Aged components, moisture and corrosion at plug connections develop over time. Cold solder joints are hard to detect from the outside.

Voltage spikes, on the other hand, strike suddenly, for example when starting with a weak battery or when jump-starting.

How can you tell that the 9659847880 is defective?

A defect in the 9659847880 is recognised by the airbag warning light, which lights up permanently or intermittently, and by further indications in the instrument cluster.

• Airbag warning light in the instrument cluster lights up
• Fault message in the instrument cluster
• Diagnostic tool finds no connection to the control unit
• Fault memory cannot be erased

In an emergency, airbags and seatbelt pretensioners may fail to deploy with such a fault.

A defect that shows only now and then must be checked just the same; the warning light reports exactly that.

Which vehicles is the 9659847880 fitted in?

For Peugeot, our records list the control unit 9659847880. It is fitted in these vehicles: Peugeot 207 I (2006-2009) and I Facelift (2009-2015).

Here are the vehicles that we have for this part number:

• Peugeot 207 I (2006-2009)
• Peugeot 207 I Facelift (2009-2015)

Comparing the part number on the unit with this page only shows that it is the right control unit. Whether it is defective is shown only by the fault memory, which you have read out beforehand, because plugs and cables can also be the cause.

For the same vehicles, we also repair control units with the part numbers 285001745, 285010110, 285010112, 285010555, 96 668 439 80, 9661440680.

How does the repair of the 9659847880 work?

Have the fault memory read out and then disconnect the battery; only then remove the control unit 9659847880. Next, create the repair order online and send the unit. Processing at Airbag24 usually takes 3–4 working days.

Include the log of the read-out with the parcel and pack the unit well. At Airbag24 the control unit is examined on the test bench, defective components are repaired and the stored crash data is erased. A function test follows, then your own unit goes back.

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 9659847880 get to Airbag24?

You send the control unit 9659847880 to us as a parcel, or you book a UPS collection for an extra charge. The return after the repair runs by UPS.

Enclose the printed repair order in the parcel, and pack the unit shock-proof.