Peugeot 405 Break airbag control unit repair⁽¹⁾

What should be considered with Peugeot 405 Break airbag control units?

The airbag control unit evaluates the crash sensors, triggers the airbags and belt pretensioners, and monitors the entire airbag system. If it detects a fault, the airbag warning light on the dashboard lights up.

In the Peugeot 405 Break, the control unit is the central component of this system. Without a functioning control unit, the airbag system cannot work reliably in an emergency, so the warning light should always be taken seriously.

After an accident, the control unit stores crash data and locks itself. Repair includes erasing this crash data. Peugeot 405 Break airbag control unit repair at Airbag24 works by mail-in procedure: Airbag24 repairs the control unit of your own vehicle that you send in.

Which Peugeot 405 Break generations are there?

For the Peugeot 405 Break, we currently list one production series: the I Facelift, built from 1992 to 1996. No further series are currently recorded for this model.

The I Facelift is the revised version of the Break in this period. The year of manufacture and the vehicle identification number (VIN) help to classify your vehicle.

• I Facelift (1992–1996) – the revised version of the Break in this period.

How do I identify my Peugeot 405 Break airbag control unit?

The part number on the control unit's label determines the exact version. The model year and equipment of your vehicle complement this information and help with the assignment.

For the I Facelift, the following part number is recorded in our data. Also note the year of manufacture and the vehicle identification number (VIN) of your Break, so that the assignment is unambiguous:

• 96 385 925 80

Autoliv is recorded as the supplier. Our data lists, among others, the fault codes B1000, U0151, A601 and A603 for this version. A fault code alone does not prove a defect: B1000 indicates an internal fault in the control unit, U0151 a lost communication with the control unit, and A601 and A603 relate to the ignition circuits of the driver and front passenger airbags.

What airbag equipment does the Peugeot 405 Break have?

The airbag equipment of the Peugeot 405 Break depended on the version. According to vehicle databases, a driver airbag was only available as an option in some versions; for other versions, it is not listed.

Reliable information on the standard equipment of front passenger, side and head airbags for this model range is not available. The actual equipment of your vehicle is therefore decisive, and a specialist workshop can check it. Two of the fault codes in our data, A601 and A603, relate to the ignition circuits of the driver and front passenger airbags.

The procedure is as follows: a specialist workshop has the fault memory read out, disconnects the battery and removes the control unit professionally. You then create a repair order online and send the control unit, well packed, to Airbag24. Processing usually takes 3–4 working days (checking, repairing, testing). Whether a particular unit can be repaired is only shown by the check after it arrives. The airbag system is safety-relevant; work on it belongs in the hands of a specialist workshop.

The repaired control unit returns with all vehicle data and is ready for use immediately after reinstallation — coding or programming is not necessary.