Airbag control unit with part number 9664909980

What does the airbag control unit 9664909980 do?

The airbag control unit 9664909980 controls the restraint system (SRS) of Peugeot. It evaluates the crash sensors, decides in an accident within milliseconds which airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

The unit shows faults via the airbag warning light. Monitoring covers the sensors, the airbags, the seatbelt pretensioners and the wiring between them.

After an accident it stores crash data and locks itself.

Why does the control unit 9664909980 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. A normal diagnostic tool cannot erase it. Other causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

Airbag24 erases this crash data during the repair. It is an essential part of the work on the unit.

The other causes lie in the condition of the components and the power supply. Electronic components age over time, solder joints can go cold, and moisture attacks the plug connectors. Voltage spikes arise, for example, from a weak battery or from jump-starting.

How can you tell that the 9664909980 is defective?

A defect in the 9664909980 shows up as the airbag warning light staying on permanently or intermittently. Added to this are a fault message in the instrument cluster, a diagnostic tool without a connection to the control unit, and a fault memory that cannot be cleared.

In such a fault, the airbags and seatbelt pretensioners may fail to trigger in an emergency.

Please have the finding checked promptly.

Which vehicles is the 9664909980 fitted in?

The control unit 9664909980 is fitted in these vehicles: Peugeot 308 I (2007-2011) and I Facelift (2011-2015). The assignment depends on the part number on the unit.

The following list shows the vehicles recorded for this part number.

• Peugeot 308 I (2007-2011)
• Peugeot 308 I Facelift (2011-2015)

Compare the part number on the label of the removed unit with this page. That only confirms it is the right unit. Have the fault memory read out beforehand, as only the result 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, 9665100080, 9665100180, 9674291480.

How does the repair of the 9664909980 work?

Processing at Airbag24 usually takes 3–4 working days. First have the fault memory read out and enclose the printout. Then disconnect the battery and only afterwards remove the control unit. Then create a repair order online and send in the carefully packed unit.

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. The unit then goes back to you.

This time applies solely to checking, repairing and testing there.

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 9664909980 get to Airbag24?

You send the control unit 9664909980 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

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