Airbag control unit with part number 261204625

What is the function of Airbag Control Unit 261204625?

The airbag control unit with part number 261204625 is the central control module for the occupant protection system in the Peugeot 106 I. It processes data from crash sensors and ensures the precise deployment of airbags and seatbelt pretensioners in the event of a collision, thereby safeguarding vehicle occupants.

As a core component of the Supplemental Restraint System (SRS), this module continuously monitors all connected sensors and actuators. It ensures the system remains operational at all times and responds without delay in an emergency.

The primary task of control unit 261204625 is to interpret signals received from acceleration sensors. Based on this data, it determines whether an impact exceeds the thresholds required to deploy airbags and sends the ignition pulse to the corresponding airbag modules and seatbelt pretensioners.

Why does control unit 261204625 fail?

Failure of control unit 261204625 is often caused by internal malfunctions, stored crash data following an accident, or communication issues. Additional causes include electronic faults due to water damage or voltage surges, as well as peripheral problems such as defective wiring or connector issues within the SRS system.

A common reason for repair is the storage of crash data. After an airbag deployment, the control unit locks internally and must be reset to restore full functionality of the safety system.

Internal faults are frequently found at the hardware level—such as cold solder joints, defective microprocessors, or faulty memory chips—which can lead to total failure or intermittent malfunctions. Damage caused by water ingress or voltage spikes in the vehicle’s electrical system can also harm sensitive electronics.

Sometimes the issue lies not directly in the control unit itself but in its connections to other system components. Broken wires or corroded connectors can disrupt communication and generate error codes that mistakenly point to a faulty control unit.

This control unit is also known under alternative part numbers 9623738080, 654779, 550404200, 9630551480, and 550579000, which are compatible with the same vehicle models. The fault patterns remain identical across these variants.

How do you recognize a defect in 261204625?

A defect in airbag control unit 261204625 is primarily indicated by the airbag warning light constantly illuminated on the instrument panel. Additionally, the control unit may become unresponsive via the OBD interface, preventing communication with diagnostic tools.

The most obvious sign is the active airbag warning light, signaling a fault in the SRS system and suggesting that airbags might fail to deploy in the event of a crash. Immediate diagnosis is essential in such cases.

Another clear symptom occurs when a workshop cannot access the airbag control unit using a diagnostic tool. This loss of communication points to a severe internal malfunction within the module.

In which vehicles is control unit 261204625 installed?

The airbag control unit with part number 261204625, along with its compatible variants, is specifically designed for the first-generation Peugeot 106. At Airbag24, we perform repairs on this module across all model series of this vehicle.

At Airbag24, we service control unit 261204625 for the following specific Peugeot model variants:

Peugeot 106 S1 (model years 1991–1996)

Peugeot 106 S2 (model years 1996–2003)

How does repair of 261204625 proceed at Airbag24?

At Airbag24, control unit 261204625 undergoes a thorough incoming inspection upon receipt. Repair includes addressing internal defects, erasing crash data, and replacing any faulty components. Final tests confirm full functionality, backed by a 12-month warranty.

The repair process at Airbag24 follows a proven, systematic procedure. After removal and submission of the control unit, our technicians conduct a detailed analysis to pinpoint the source of the fault.

Depending on the nature of the issue, stored crash data is professionally erased, or defective electronic components on the circuit board are replaced with new, high-quality parts. If repair is not feasible, we offer a fully refurbished replacement unit.

Following restoration, each control unit undergoes functional testing on a specialized test bench, ensuring seamless communication and full performance equivalent to a brand-new unit.

What shipping options are available?

When sending your control unit to Airbag24, you can either ship it yourself free of charge or arrange a convenient UPS pickup. For the return shipment, we offer free standard UPS shipping as well as optional express and cash-on-delivery services. On-site self-collection is also available.

Returning your unit to Airbag24 is hassle-free. You can choose to send the securely packaged control unit on your own or request a free UPS pickup at your preferred location.

For returning the repaired unit, several options are available: Standard UPS shipping is free of charge.

If you need faster delivery, you can opt for UPS Express shipping. Both shipping methods are also available with cash-on-delivery. Alternatively, you can pick up your control unit in person from our facility.