Airbag control unit with part number 95910-Q4000

What is the function of the Airbag Control Unit 95910-Q4000?

The Airbag Control Unit 95910-Q4000 is the central control module of the restraint system (SRS ECU) in Kia Niro models (DE and SG2). It processes data from crash sensors and, in the event of a collision, precisely deploys the relevant components—such as front, side, or knee airbags, as well as seatbelt pretensioners—to protect occupants.

As the “brain” of the safety system, this control unit continuously monitors all connected sensors and actuators. It determines within milliseconds whether and which restraint devices need to be activated during a crash, minimizing the risk of injury to vehicle occupants.

The proper functioning of this unit is critical for safety. It ensures that, from the driver’s airbag to the knee airbag and seatbelt pretensioners, all components reliably and coordinately deploy in an emergency.

Why does the 95910-Q4000 control unit fail?

The most common reason for repairing the 95910-Q4000 control unit is the storage of crash data after an accident (errors B1620, B1650, B2500), which locks the system. Other causes include physical damage such as broken wiring, faulty connections, loose plug-in connectors, or moisture ingress leading to internal defects.

After an airbag deployment, the unit stores so‑called crash data. This data locks the control unit and prevents further use, even if there is no visible physical damage. Repairing by clearing this crash data (crash data reset) is often a cost‑effective alternative to replacing the entire component.

In addition to crash data, hardware defects can also be the cause. Broken wires, corrosion due to moisture damage, or loose connectors lead to malfunctions and require electronic repair at the component level. In such cases, defective parts are replaced individually.

Similar repair procedures apply to related part numbers such as 95910-Q4100, 95910-Q4200, 95910-Q4300, 95910-Q4350, and 95910-Q8100, which are also installed in Kia models.

How do you recognize a fault in the 95910-Q4000?

A fault in the Airbag Control Unit 95910-Q4000 primarily manifests as a permanently illuminated airbag warning light on the instrument cluster. Additionally, the control unit may become unreadable via the OBD interface, preventing communication with diagnostic tools and complicating troubleshooting.

The most obvious symptom is the persistently lit airbag warning light. It does not turn off after starting the vehicle, signaling a serious fault in the restraint system that requires immediate inspection.

Another clear indication is when a specialized workshop cannot establish communication between the diagnostic tool and the airbag control unit. Such a loss of connectivity often points to an internal defect in the device or an interruption in the power supply.

In which vehicles is the 95910-Q4000 installed?

The Airbag Control Unit with part number 95910-Q4000 is specifically designed for various generations of the Kia Niro. At Airbag24, this component is accepted for repair in both the Kia Niro DE series (model years 2016–2022) and its successor, the Kia Niro SG2 (from model year 2022 onward).

At Airbag24, the 95910-Q4000 control unit is professionally refurbished for the following Kia models:

Kia Niro (DE series, model years 2016–2022)

Kia Niro (SG2 series, from model year 2022 onward)

How does the repair process work at Airbag24?

The repair of the 95910-Q4000 control unit at Airbag24 begins with the safe removal and shipping of the unit. Our technicians perform a detailed analysis, erase stored crash data (reset), and replace any defective electronic components. Finally, a functional test is conducted to ensure proper operation. We provide 2 years' statutory liability for defects on every repair.

Before removal, it is ideal to read out the fault memory to document error codes. After dismantling, the control unit is securely packaged for transport back to Airbag24.

Professional refurbishment takes place in our lab. Depending on the nature of the fault, stored crash data is erased, or defective electronic components on the circuit board are replaced. Following successful repair, the unit undergoes a comprehensive functional test.

It is important to note that after an accident, not only the control unit but the entire restraint system—including wiring, connectors, and airbags—should be inspected. Repairing just the control unit alone often isn’t sufficient to fully restore safety.