Airbag control unit with part number 9637547280

What does the airbag control unit 9637547280 do?

The airbag control unit 9637547280 forms the central switching unit of the restraint system (SRS) in Peugeot vehicles. From the signals of the crash sensors it calculates whether an accident requires triggering, and then controls the airbags and seatbelt pretensioners.

The system is under constant observation. The unit registers every fault and reports it via the airbag warning light in the instrument cluster.

If an accident occurs, the control unit stores crash data and locks itself. This lock ends only with the repair.

Why does the control unit 9637547280 fail?

For the control unit 9637547280, the most common cause is the storage of crash data after an accident, even if no airbag has triggered. A normal diagnostic tool cannot erase this data. Further triggers are aged components, cold solder joints, moisture and corrosion on plugs, and voltage spikes.

An accident without an airbag triggering can also leave such data behind. Airbag24 erases it during the repair.

Electronic components age, solder joints can remain cold, and moisture attacks contacts. Voltage spikes, for example from a weak battery or a jump start, also stress the electronics.

How can you tell that the 9637547280 is defective?

A defect on the 9637547280 shows itself through fault messages in the instrument cluster, a warning light that stays on constantly or intermittently, a diagnostic tool without connection to the control unit, or a fault memory that cannot be erased. Airbags and seatbelt pretensioners may then not trigger in an emergency.

The airbag warning light in the instrument cluster shows the finding itself. That is why it is worth having the fault memory read out promptly.

Which vehicles is the 9637547280 fitted in?

The control unit 9637547280 is fitted in these vehicles: Peugeot 306 I (1993-1997) and I Facelift (1997-2002).

The overview assigns these models to the unit:

• Peugeot 306 I (1993-1997)
• Peugeot 306 I Facelift (1997-2002)

Comparing the number on the label of the removed unit with this page only confirms that it is the right unit. Whether the control unit itself is defective, or whether a plug or cable is the cause, is shown by the fault memory. Therefore have it read out beforehand.

For the same vehicles, we also repair control units with the part numbers 9620732580, 9621996780, 9636995580.

How does the repair of the 9637547280 work?

First have the fault memory read out and attach the log. Then disconnect the battery, remove the control unit 9637547280 and create the repair order online before sending the unit in well packed.

Airbag24 examines the unit on the test bench, repairs defective components, erases the stored crash data and carries out a function test. Afterwards the unit comes back to you.

For checking, repairing and testing, Airbag24 typically allows 3–4 working days. 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 9637547280 get to Airbag24?

You send the control unit 9637547280 to Airbag24 as a parcel or book a UPS collection for an extra charge. After the repair it goes back to you by UPS.

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