Airbag control unit with part number 9644903480

What is the function of the airbag control unit 9644903480?

The airbag control unit 9644903480, manufactured by Autoliv and also known under part number 600237200, serves as the central control module for the occupant protection system in the Peugeot 206. It processes data from crash sensors and is responsible for precisely and promptly deploying airbags and seatbelt pretensioners in the event of a collision.

As the heart of the Supplemental Restraint System (SRS), this ECU (Electronic Control Unit) continuously collects and analyzes data from acceleration and pressure sensors distributed throughout the vehicle. Upon impact, the unit determines within milliseconds which restraint systems—such as front or side airbags and pyrotechnic seatbelt pretensioners—should be activated to provide optimal occupant protection.

The alternative part number for this module is 600237200. Proper functionality is essential for vehicle safety, as a malfunction could disable the entire passive safety system.

Why does the control unit 9644903480 fail?

The most common cause of failure for the control unit 9644903480 is the storage of crash data after an accident, which prevents further use. Other causes include internal software or communication errors, voltage drops due to a weak battery, and defects that result in error codes such as FC-160 (seatbelt pretensioner/airbag ignition circuit).

After airbags or seatbelt pretensioners are deployed, a permanent entry is recorded in the control unit’s memory—known as the “crash lock.” This entry cannot be erased using standard diagnostic tools and ensures safety by preventing the reuse of potentially damaged components. A professional repair can remove this lock.

Electrical faults may also occur, including issues with internal software leading to communication interruptions with the diagnostic tester, or component failures on the circuit board. Unstable power supply—often caused by an aging vehicle battery—can likewise lead to malfunctions and persistent error entries.

Before repairing the control unit, it is advisable to rule out other potential sources of trouble in the vehicle. In particular, the COM2000 module (steering column switch assembly) or faulty sensors can produce similar symptoms, making a comprehensive diagnostic report prior to removal highly beneficial.

How do you recognize a defect in the control unit 9644903480?

A defective control unit 9644903480 primarily manifests as a permanently illuminated or intermittently flashing airbag warning light on the dashboard. Additionally, communication with the control unit via a diagnostic tool is often impossible, preventing access to the fault memory. Stored error codes that cannot be cleared are another clear indicator.

The most obvious sign is the illuminated SRS warning light (airbag symbol), signaling to the driver that the restraint system is not functioning correctly and may fail to deploy in the event of a crash.

Another clear symptom is the lack of response from the control unit during a diagnostic query. If the workshop attempts to read the fault memory, no connection to the ECU is established, strongly suggesting an internal device failure.

If communication remains possible, specific error codes such as FC-160 (seatbelt pretensioner, ignition circuit, driver airbag) or entries related to stored crash data will appear. These errors cannot be reset using standard methods after an accident.

In which vehicles is the control unit 9644903480 installed?

The airbag control unit 9644903480, manufactured by Autoliv and alternatively designated as 600237200, is specifically designed for models in the Peugeot 206 series, encompassing both the first generation and facelifted versions—including the popular 206 CC convertible variant.

At Airbag24, we repair the control unit with part number 9644903480 for the following vehicles:

Peugeot: 206 CC I (model years 1998–2003) and the facelift model (model years 2003–2009).

It is crucial that the part number on the removed control unit exactly matches either 9644903480 or the alternative number 600237200. Only then can compatibility and flawless post-repair functionality be ensured.

What are the advantages of repair over purchasing a new unit?

Repair offers significant benefits, most notably cost savings of up to 70% compared to buying a new component. Since the original control unit is refurbished, there is no need for time-consuming re-coding or reprogramming. Furthermore, you receive 2 years' statutory liability for defects on the completed repair.

A key factor is the substantial cost savings. While a new part from the manufacturer can cost between 750 and 800 euros according to market analyses, professional repair offers a significantly more economical alternative.

Repairing your original control unit is a plug-and-play solution. Since all vehicle-specific data, such as the VIN and coding, are preserved, no re-learning or programming at the workshop is required after reinstallation. This saves additional time and costs.

Additionally, by refurbishing the component, you contribute to sustainability. Reusing electronic parts conserves valuable resources and reduces e-waste.

How does the repair process work at Airbag24?

The process begins with the safe removal of the control unit and its shipment to Airbag24. Our technicians perform a detailed analysis, reset the stored crash data, resolve any electronic faults, and conduct a final functional test before returning the device to you with 2 years’ statutory liability for defects.

Before removal, the vehicle’s fault memory should be read out. Please include the fault log with the package, as this assists our technicians in diagnosis and speeds up the repair process.

Upon receipt at Airbag24, the control unit 9644903480 undergoes professional refurbishment. This includes clearing the crash lock via specialized software, as well as inspecting and, if necessary, replacing defective electronic components on the circuit board.

Following successful repair, the unit undergoes a comprehensive functional test to ensure flawless communication and operation of all system components. Only then is it securely packaged and returned to you for reinstallation, complete with 2 years’ statutory liability for defects on the work performed.