Airbag control unit with part number 9665699580

What does the airbag control unit 9665699580 do?

In the Peugeot vehicle, the airbag control unit 9665699580 coordinates the restraint system (SRS). It evaluates signals from the impact sensors, decides within milliseconds in a crash whether to trigger, and monitors the system throughout.

The housing also carries the manufacturer number Bosch 0285010553. The unit reports faults via the airbag warning light, and after an accident it stores crash data and locks itself.

The monitoring runs continuously in the background, even when nothing noticeable happens while driving.

Why does the control unit 9665699580 fail?

Crash data from an accident is the most common cause, even if no airbag has deployed. An ordinary diagnostic tool does not make them disappear. Other causes are aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump start.

The fact that no airbag has deployed says nothing about whether data were stored.

Aged components and corrosion gradually worsen the contact, so signals become unreliable. A plug connector with moisture can be the cause just as well as a cold solder joint.

How can you tell that the 9665699580 is defective?

A defect shows itself through an airbag warning light in the instrument cluster that lights up, a fault message in the instrument cluster, a diagnostic tool with no connection to the control unit, and a fault memory that cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The warning light is the notice the unit gives itself, and this notice deserves attention.

Which vehicles is the 9665699580 fitted in?

The assignment applies to this part number. The airbag control unit 9665699580 is fitted in these vehicles: Peugeot 207 I (2006-2009) and I Facelift (2009-2015).

The known vehicles for this number are shown in the overview:

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

Carry out the label comparison on the removed unit, since that shows whether it is the correct unit. Whether the control unit itself is defective must be shown by the fault memory, which you have read out beforehand. A plug or a cable can be the cause just as well.

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 9665699580 work?

At the start comes reading out the fault memory with the attached log, followed by disconnecting the battery before removal. Then you create the repair order online and send the unit in. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the submitted unit on the test bench, replaces defective components and deletes the stored crash data. A function test completes the work, after which you receive your own unit 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 9665699580 get to Airbag24?

Shipping is by parcel or by UPS collection, which is booked for an extra charge. After the repair, the control unit is returned to you by UPS.

Put the printed repair order into the parcel with it. Shockproof packaging protects the unit in transit.