Airbag control unit with part number 95910-4D020

What is the function of the airbag control unit 95910-4D020?

The airbag control unit with part number 95910-4D020 is the central control unit (SRS ECU) for the restraint system in the SsangYong Stavic A100. It processes signals from crash sensors and is responsible for precisely and promptly deploying the front and side airbags as well as the seatbelt pretensioners in the event of a collision.

As an OEM control unit, it serves as the brain of the entire occupant protection system. It continuously monitors all connected components—such as sensors, airbag igniters, and seatbelt pretensioners—for proper functionality. In case of a malfunction or after an accident, the control unit ensures that a warning is displayed to the driver.

The correct operation of this component is safety-critical, as it determines the effectiveness of passive safety systems in emergencies, thereby protecting occupants from severe injuries.

Why does the airbag control unit 95910-4D020 fail?

The most common causes of failure for control unit 95910-4D020 are stored crash data following an accident, as well as internal electronic malfunctions. Even minor collisions can leave data in the unit’s memory, blocking further functionality and preventing removal using standard workshop diagnostic tools.

A key reason for repair is a crash record stored in the internal memory (EEPROM/Flash). This permanently locks the control unit, causing the airbag warning light to remain illuminated. Persistent error codes related to seatbelt pretensioners or airbags—even when wiring is intact—are often a direct consequence of these stored data records.

In addition, hardware faults on the circuit board may occur. These include defective components such as voltage regulators, memory ICs, or driver stages. External factors like overvoltage, short circuits in the vehicle’s electrical system, or moisture ingress can also lead to irreparable damage to the electronics.

How do you recognize a fault in the control unit 95910-4D020?

A fault in the control unit 95910-4D020 primarily manifests as a continuously illuminated airbag warning light (SRS lamp) in the instrument cluster. Often, communication with the control unit via an OBD diagnostic tool is no longer possible, or specific internal error codes are reported.

The clearest symptom is the airbag warning light that fails to turn off after starting the vehicle. This indicates a serious issue within the restraint system that compromises occupant safety.

Another clear sign is when a workshop cannot establish communication with the airbag control unit using a diagnostic device. The unit does not respond to queries, making further troubleshooting impossible.

Error codes stored in the fault memory—such as “component defective” or “internal error”—directly point to a malfunction within the control unit itself. These errors typically cannot be cleared and require professional electronic repair.

In which vehicles is the control unit 95910-4D020 installed?

The airbag control unit with part number 95910-4D020 is specifically designed for SsangYong vehicles. It is mainly used in the first-generation SsangYong Stavic minivan, where it manages the entire restraint system.

At Airbag24, we offer repair services for the airbag control unit with part number 95910-4D020 for the following model:

SsangYong Stavic, A100 series (approximately model years 2004–2013)

How does the repair of 95910-4D020 proceed at Airbag24?

The repair process at Airbag24 is designed for safe, long-lasting restoration. Upon receipt of the control unit, a comprehensive diagnosis is performed. Depending on the nature of the fault, crash data is reset and/or defective electronic components on the circuit board are replaced. A final test guarantees full functionality.

After submitting the removed control unit, Airbag24 first conducts an incoming inspection. During this step, the fault memory and any existing crash data are read out to identify the exact cause of the issue.

The core repair process, if necessary, consists of two steps. First, at the software level, stored crash data in the EEPROM or Flash memory is erased, restoring the control unit to factory settings without altering vehicle-specific coding. For hardware defects, faulty components such as voltage regulators, memory chips, or drivers are replaced with new, high-quality parts, and solder joints are professionally reworked.

Finally, each repaired control unit undergoes a functional test on a specialized test bench. Here, communication, internal self-tests, and sensor and ignition circuits are simulated to ensure flawless operation within the vehicle. Airbag24 provides a 12-month warranty on every repair.

What shipping options does Airbag24 offer?

Airbag24 provides flexible and customer-friendly shipping solutions. For the outbound shipment, you can send the package yourself, drop it off free of charge at a local location, or arrange a convenient UPS pickup. Returns are free of charge via UPS Standard, with express and cash-on-delivery options also available.

To ship your defective control unit to us, you can either pack it yourself and send it, or bring it in person. As a convenient alternative, we offer scheduling a UPS pickup from your preferred location.

After successful repair, returns are normally shipped free of charge via UPS Standard. If faster delivery is needed, you can opt for UPS Express shipping. Both shipping methods can also be combined with cash-on-delivery. Of course, you can also pick up the repaired unit in person at our facility.