Airbag control unit with part number 1401407980-00

What is the function of Airbag Control Unit 14 014 079 80?

The airbag control unit with part number 14 014 079 80 is the central control module of the occupant restraint system (SRS) and was primarily installed in the Citroën Jumpy I. It processes signals from crash sensors and decides, within milliseconds, whether to deploy airbags and seatbelt pretensioners.

As the brain of the passive safety system, this electronic module continuously monitors all connected components, such as sensors, igniters, and the warning light. It is responsible for distinguishing a real accident from harmless vibrations and precisely activating the restraint devices.

Its primary task is to maximize occupants’ chances of survival in the event of a collision by triggering the appropriate safety components at exactly the right moment. After deployment, the unit locks itself for safety reasons.

Why does control unit 14 014 079 80 fail?

The most common cause of failure is the storage of crash data after an accident, which results in permanent locking of the unit. In addition, internal electronic faults—such as defective capacitors, short circuits, or general circuit board issues—can impair functionality or lead to total failure.

Following airbag deployment or a crash, so‑called crash data are stored in the control unit’s internal memory. This entry is permanent and causes the airbag warning light to remain illuminated while the system is disabled. Clearing the data is only possible through specialized repair services.

Beyond accidents, hardware components on the circuit board can also fail. Defective capacitors, resistors, or short circuits are typical malfunctions that prevent proper operation. Therefore, a preliminary inspection at a workshop is essential to rule out external sources of error, such as faulty sensors.

It is important to verify the exact part number, as similar numbers—for example, 14 014 078 80—may exist across manufacturers. Compatibility is guaranteed only when the part numbers match.

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

The clearest symptom is the permanently illuminated airbag warning light on the instrument panel, which does not turn off even after the engine starts. Often, the control unit can no longer be accessed by diagnostic equipment, or error codes indicating an internal fault are recorded.

The persistently lit SRS warning lamp is the most obvious indication for drivers and workshops that a critical fault exists in the restraint system. In this state, the system is typically inoperable.

During diagnostics at a workshop, it is often found that communication with the airbag control unit cannot be established. The unit fails to respond to tester requests, complicating further troubleshooting of sensors or wiring and strongly suggesting an internal defect.

If communication remains possible, specific error codes such as “Internal Control Unit Error” or “Crash Data Stored” are frequently read. These entries confirm that the control unit itself is the root cause of the problem.

In which vehicles is 14 014 079 80 installed?

The airbag control unit with part number 14 014 079 80 is specifically designed for the first-generation Citroën Jumpy. It was used both in the original models from 1995 to 2004 and in the facelifted version from 2004 to 2006.

At Airbag24, we successfully repair this control unit for the following specific model and its variants:

Citroën Jumpy I (model years 1995–2004) and Citroën Jumpy I Facelift (model years 2004–2006)

To ensure compatibility, it is essential to verify the part number printed on the control unit, as different variants may be installed even within the same model series.

How is the control unit professionally repaired?

Professional repair is a multi‑step electronic process. Following an initial inspection, crash data stored according to the nature of the fault are erased, defective components such as capacitors are replaced, and the control unit is then reprogrammed to restore its original factory settings.

At Airbag24, repairs follow a proven procedure. First, the unit undergoes a comprehensive diagnosis to precisely locate all internal faults on the circuit board and in the components.

This is followed by the actual repair, which includes replacing defective electronic parts and, above all, professionally resetting the memory. Stored crash data are completely removed, and the unit is unlocked.

Finally, the control unit is recalibrated using specialized software and tested to ensure flawless operation. We provide 2 years' statutory liability for defects on every repair.