Airbag control unit with part number 96 217 003

What is the function of the airbag control unit 96 217 003?

The airbag control unit 96 217 003, manufactured by Siemens under part number 5WK4155, serves as the central control module for the restraint system in specific Daewoo Lanos models. It processes signals from crash sensors and ensures that, in the event of an accident, the airbags and seatbelt pretensioners are deployed precisely and promptly.

As Siemens part number 5WK4155-68HC05B16, it is typical for older Daewoo vehicles equipped with a simpler yet reliable airbag system. Its primary responsibility is continuously monitoring all connected components—such as sensors, igniters, and its own internal electronics—to ensure the safety system remains fully operational at all times.

Why does the control unit 96 217 003 fail?

The most common cause of failure for the control unit 96 217 003 is the storage of crash data after an accident, which internally locks the device. Additional faults arise from electrical disturbances such as low battery voltage, voltage drops, defective coil springs on the steering wheel, mechanical damage, or ESD damage during handling.

Following an airbag deployment, so‑called crash data is permanently stored in the control unit’s memory. This condition is a safety measure designed to prevent reuse without professional repair; the unit then becomes locked out of normal operation.

Electrical issues within the vehicle’s electrical system—such as voltage spikes or drops caused by an aging battery—can also lead to internal malfunctions in the sensitive electronics. CAN bus problems or mechanical damage to the housing or connectors are other well‑known sources of failure.

This component is also known under alternative part numbers 96 303 500, 7541114, 96 220 439, and 7088107, all of which share the same defect patterns.

How can you recognize a fault in the control unit 96 217 003?

A faulty airbag control unit 96 217 003 primarily manifests as a constantly illuminated airbag warning light on the instrument cluster. Additionally, the fault memory cannot be cleared using a diagnostic tool, indicating that the entire airbag system has been deactivated due to the malfunction.

The most noticeable symptom is the persistently lit airbag warning light, which fails to extinguish even after restarting the engine. This is a clear indication of a serious, stored error within the restraint system.

If a workshop attempts to read and clear the fault memory, they usually encounter failure: the control unit refuses communication or reports an internal, non‑erasable error. In this state, the vehicle’s entire airbag system is inoperative, posing a significant safety risk and resulting in a major failing during the main inspection (TÜV).

In which vehicles is the airbag control unit 96 217 003 installed?

The airbag control unit with part number 96 217 003 is specifically designed for various Daewoo models. At Airbag24, we repair this control unit for the Daewoo Lanos T100, T150, and Lanos Sport T150. Compatible part numbers such as 96 303 500, 7541114, 96 220 439, and 7088107 are also supported.

The exact compatibility for repairs at Airbag24 includes the following vehicle models:

Daewoo Lanos T100 (model years 1997–2004)

Daewoo Lanos T150 (model years 1997–2004)

Daewoo Lanos Sport T150

How does the repair process work at Airbag24?

After sending the removed control unit to Airbag24, a professional overhaul follows. Technicians perform an electronic reset, erase stored crash data, and restore full functionality. Following a final inspection, the repaired unit is returned, complete with 2 years’ statutory liability for defects on the repair performed.

Before removal, it is advisable to read the fault memory using an appropriate diagnostic tool and record any error codes. The removal itself must be carried out only with the vehicle battery disconnected (negative terminal first, allowing at least 10–15 minutes of waiting) to prevent unintended airbag deployment. In the Daewoo Lanos, the control unit is typically located beneath the center console.

Upon receipt at Airbag24, the unit undergoes a thorough analysis. The repair includes professional, residue‑free erasure of crash data, along with inspection and restoration of the internal electronics. The goal is to return the unit to its original factory condition.

Once the repair is successfully completed, the unit is prepared for shipment. Reinstallation takes place in reverse order, ensuring proper fastening and secure connections. Finally, the fault memory must be cleared in the vehicle to extinguish the airbag warning light.

What are the benefits of a repair?

Repairing control unit 96 217 003 offers significant cost savings compared to a new part, which can cost up to €750. Since the original unit is refurbished, no re-coding is required on the vehicle. Additionally, you receive 2 years' statutory liability for defects on the completed repair.

Choosing a repair is not only economically sensible but also sustainable. Rather than discarding a complex electronic component, it is professionally reconditioned and can continue to reliably perform its function in your vehicle.