Airbag control unit with part number 9665558480

What does the airbag control unit 9665558480 do?

The airbag control unit 9665558480 is the central control unit of the restraint system (SRS) for Peugeot. It evaluates the signals from the crash sensors and decides in an accident, within milliseconds, which airbags and seatbelt pretensioners are triggered. After an accident, it stores crash data and locks itself.

The unit checks the entire system continuously. If it detects a fault, it writes it to the fault memory and lights up the airbag warning light.

The lock only ends with the repair. During normal driving the control unit hardly stands out; its job becomes apparent in an emergency.

Why does the control unit 9665558480 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Other causes are aged components, dry solder joints, moisture and corrosion at plug connections, and voltage spikes.

The data remain in the unit even if the vehicle continues to drive without any noticeable problem. Airbag24 erases it as part of the repair.

The remaining causes concern the electronics and their power supply. Over time, aged components lose performance, dry solder joints can come loose, and moisture attacks plug contacts. Voltage spikes in the vehicle electrical system additionally stress the circuits.

How can you tell that the 9665558480 is defective?

A defect is indicated by the airbag warning light in the instrument cluster, which stays on permanently or intermittently, fault messages in the instrument cluster, a diagnostic tool without a connection to the control unit, and a fault memory that cannot be cleared.

• Airbag warning light stays on permanently or intermittently
• Fault message in the instrument cluster
• No connection between diagnostic tool and control unit
• Fault memory cannot be cleared

If such signs appear, airbags and seatbelt pretensioners may possibly not deploy in an accident. Therefore, have the system checked promptly.

Which vehicles is the 9665558480 fitted in?

The control unit 9665558480 belongs to the following vehicles. It is fitted in these vehicles: Peugeot Partner II (2008-2012), II 1st Facelift (2012-2015) and II 2nd Facelift (2015-2019).

The assignment lists the vehicles individually:

• Peugeot Partner II (2008-2012)
• Peugeot Partner II 1st Facelift (2012-2015)
• Peugeot Partner II 2nd Facelift (2015-2019)

Comparing the part number on the label of the removed unit with this page only confirms that it is the right unit. Have the fault memory read out beforehand, because only this log shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 602327600, 6590PK, 9653190980, 9665558380, 968938880, 98 039 168 80.

How does the repair of the 9665558480 work?

You read out the fault memory, disconnect the battery and then remove the control unit. Afterwards, you create a repair order online and send the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, clears the stored crash data and carries out a function test. The unit then returns to you.

This period refers exclusively to checking, repairing and testing at Airbag24.

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 9665558480 get to Airbag24?

You send the unit as a parcel, or you book a UPS collection for an extra charge. The return after the repair is made by UPS.

Pack the printed repair order along with the unit and make sure the packaging is shockproof.