Airbag control unit with part number 1499801080

What is the function of the airbag control unit 1499801080?

The airbag control unit with part number 1499801080 is an OEM component from Temic/Autoliv, serving as the central control unit for the entire passive safety system (SRS) in vehicles such as the Peugeot 807 and Citroën C8. It processes signals from acceleration and crash sensors and determines whether and when to deploy the airbags and seatbelt pretensioners.

As the brain of the Supplemental Restraint System (SRS), this control unit continuously monitors all connected components, including front, side, and head airbags, seatbelt pretensioners, seat occupancy detection, along with their respective sensors and wiring. Its task is to respond to accident situations within milliseconds and provide optimal protection for occupants.

Therefore, flawless functionality is critical for safety. In case of an internal fault or after a crash, the system typically deactivates itself to prevent false activations, indicated by the SRS warning light on the dashboard.

Why does the control unit 1499801080 fail?

The most common cause of failure for the control unit 1499801080 is stored crash data following an accident. Other defects arise from internal electronic component failures caused by moisture or overvoltage, as well as software errors leading to communication issues or persistent internal error codes.

After an airbag deployment, the device permanently stores crash data in its internal memory (EEPROM). This is a manufacturer‑specified safety measure that locks the control unit, requiring replacement or professional repair. Simply clearing the fault memory with a diagnostic tool is not sufficient here.

Electronic malfunctions are another frequent source of failure. Internal components such as processors, capacitors, or memory chips can degrade over time or be damaged by external factors like moisture ingress and voltage fluctuations in the vehicle’s electrical system. This often results in internal error codes such as B1000, 65535, or 93F9.

Communication problems via the CAN bus or software errors can also impair functionality. While replacement with new parts or used alternatives (e.g., 1401277280 or 6546H0) is possible, targeted repair of the original unit often represents the most economical and technically sound solution.

How do you recognize a defect in the control unit 1499801080?

A defect in the control unit 1499801080 primarily manifests as a constantly illuminated or flashing airbag warning light (SRS light) on the instrument cluster. Often, the control unit can no longer be accessed by a diagnostic tool, or unerasable error codes such as “crash data stored” or “internal control unit error” appear.

The most obvious sign is the active SRS indicator light, signaling to the driver that the entire airbag system is deactivated and will no longer provide protective functions in the event of a crash. An immediate inspection at a specialized workshop is therefore essential.

During diagnostics at the workshop, specific error codes are frequently read out. Typical entries include indications of software faults, coding issues, stored crash events, or excessively high resistance values in individual airbag circuits—even when the components themselves remain intact.

Another clear symptom is the lack of communication: if the workshop attempts to access the airbag control unit via the OBD interface, the connection fails. The unit remains unreachable by the diagnostic system, pointing to a severe internal malfunction.

In which vehicles is the control unit 1499801080 installed?

The airbag control unit with part number 1499801080 is specifically used in the identical large‑space vans from Peugeot and Citroën. Repairing this particular module is a core competency of Airbag24, ensuring full safety for these family vehicles once again.

At Airbag24, we repair part number 1499801080 for the following models:

Peugeot: 807 I (model years 2002–2008) and 807 I Facelift (model years 2008–2014)

Citroën: C8 I (model years 2002–2008) and C8 I Facelift (model years 2008–2014)

How is the control unit 1499801080 professionally repaired?

Professional repair at Airbag24 includes diagnosing the removed control unit, addressing the root cause of the fault—such as erasing crash data or replacing defective components—and conducting a final functional test. The repaired unit is returned in its original condition without the need for re‑coding.

Before removal, it is ideal to read out the fault memory and send the error description along with the unit. This speeds up analysis at the workshop. After removal, the control unit is securely packaged and shipped back to Airbag24.

At Airbag24, a thorough analysis is performed at both the hardware and software levels. Stored crash data is securely erased at the chip level. If an electronic fault is detected, defective components are replaced with new, high-quality parts, and solder joints are inspected.

Following repair, each control unit undergoes a comprehensive functional test to ensure it meets the manufacturer’s specifications. The unit is then fully operational again (plug-and-play) and shipped back to you with 2 years’ statutory liability for defects.