Airbag control unit with part number 5WK44281

What is the function of the Airbag Control Unit 5WK44281?

The Airbag Control Unit 5WK44281 is the central control module for the entire Supplemental Restraint System (SRS) in the SsangYong Stavic A100. Its primary role is to detect crash situations, activate the appropriate restraint systems such as airbags and seatbelt pretensioners, and continuously monitor the system’s status.

As a core component of the Supplemental Restraint System (SRS), this control unit processes data from various sensors throughout the vehicle. In the event of a collision exceeding predefined thresholds, the unit sends critical ignition signals to the airbag modules and seatbelt pretensioners to provide optimal protection for occupants.

Furthermore, the 5WK44281 control unit performs a self-test at every vehicle start-up and continuously monitors all connected components, including sensors, ignition circuits, and internal electronics. Any detected fault is stored in the fault memory and signaled to the driver via the illuminated SRS warning light.

Why does the 5WK44281 control unit fail?

The most common causes of failure for the 5WK44281 control unit are stored crash data following an accident, as well as external issues in the peripheral system. These include damaged or broken wiring, loose connectors, or incorrect wiring between the control unit and the SRS components.

After an accident in which the airbags have deployed, the control unit stores so‑called crash data. This data locks the unit out of further use to ensure safety. In such cases, a professional repair is essential to properly reset this data and restore full functionality.

Often, the source of the problem lies outside the control unit itself. Fractured or damaged cable harnesses connecting the control unit to sensors or airbags can lead to communication failures. Similarly, corroded or loose connectors may cause the system check to fail, resulting in a persistent error code.

Incorrect wiring—such as that occurring after improper vehicle repairs—can also trigger malfunctions in the airbag system. The control unit detects the improper connection and reports a system error to prevent unintended deployment.

How do you recognize a defect in the 5WK44281 control unit?

The clearest indication of a fault in the airbag system is a permanently lit or flashing SRS warning light on the instrument panel. This signals that the system has detected an error and that the airbags might not deploy in the event of a future accident. Immediate diagnosis at a workshop is strongly recommended.

If the red airbag or SRS indicator light fails to extinguish after starting the engine, it means the internal self‑test has failed. In this state, the system is typically disabled, posing a significant safety risk.

In some cases, diagnostic equipment may be unable to establish communication with the airbag control unit. Such a communication breakdown often points to a serious internal or external fault requiring detailed analysis by a qualified technician.

In which vehicles is the 5WK44281 control unit installed?

The airbag control unit with part number 5WK44281 was specifically developed for the first-generation SsangYong Stavic (A100). At Airbag24, we offer professional and reliable repair services for this particular control unit.

At Airbag24, we repair the 5WK44281 airbag control unit for the following model:

SsangYong Stavic A100 (model years 2004–2013)

How is the 5WK44281 control unit professionally repaired?

Professional repair at Airbag24 includes precise fault diagnosis, proper resetting of crash data, and either refurbishment or replacement of defective components. Each repaired control unit functions like new and comes with 2 years’ statutory liability for defects.

Upon receipt at Airbag24, the control unit is first inspected using specialized diagnostic tools to pinpoint the exact fault. Technicians conduct multiple analyses to identify the root cause—whether it’s an internal malfunction or stored crash data.

This is followed by actual restoration: stored crash data is securely and completely erased. If there are physical damages to the hardware, these are expertly repaired. Should a repair prove impossible, this is communicated transparently.

Following successful repair, the control unit undergoes a comprehensive functional test to ensure compliance with all manufacturer specifications. The unit is then returned fully operational and ready for installation, complete with 2 years’ statutory liability for defects covering the repair performed.