Airbag control unit with part number 95910-G2500

What is the function of the airbag control unit 95910-G2500?

The airbag control unit 95910-G2500 is the central control module of the occupant restraint system (SRS) in the Hyundai Ioniq AE. It continuously monitors the crash sensors, processes their data, and within milliseconds decides whether to deploy airbags and seatbelt pretensioners, providing optimal protection for occupants in the event of a collision.

As an SRS ECU (Supplemental Restraint System Electronic Control Unit), module 95910-G2500 is responsible for processing signals from front-, side-, and lateral acceleration sensors. When an impact exceeds predefined thresholds, it sends ignition pulses to the corresponding pyrotechnic components.

In addition to its deployment function, the control unit performs continuous self-diagnosis of the entire system. It stores detected faults in its fault memory and alerts the driver to malfunctions via the airbag warning light. In the event of a crash, crash data is also permanently recorded in internal memory.

Exact matching of part number 95910-G2500 is essential for repair or replacement. The software embedded in the unit, the sensor configuration, and the pin assignments are specifically tailored to the particular equipment level of the Hyundai Ioniq.

What types of defects occur in the 95910-G2500 control unit?

The most common cause of malfunction in the 95910-G2500 control unit is stored crash data following a collision, which locks the device. Other issues include internal electronic faults, indicated by specific diagnostic codes displayed on the scan tool. Less frequently, communication problems or physical damage caused by moisture may occur.

After deploying airbags or seatbelt pretensioners, the control unit permanently stores crash data. This results in the airbag warning light remaining illuminated and the system being locked. Typical error messages include “Crash data stored” or “Accident data record present.” Technically, the unit is often intact but software‑locked.

Internal defects manifest as error codes such as “internal control unit error” or “SRS ECU internal fault.” Common causes include faulty components on the circuit board, such as defective driver ICs, voltage regulators, or faulty memory chips. In some cases, this can prevent communication via the OBD interface.

Rarer defects stem from external influences, including corrosion at connector pins due to moisture ingress or electronic damage caused by overvoltage—for example, after improper jump-starting. Problems in the vehicle’s wiring harness can also be interpreted by the control unit as internal faults.

How do you recognize a defective 95910-G2500 control unit?

A defect in the airbag control unit 95910-G2500 typically manifests unmistakably through the permanently illuminated red airbag warning light on the instrument cluster. Additionally, diagnostic tools can read out error codes such as “Crash data stored” or “Internal control unit error.”

The primary and obvious symptom is the persistently lit airbag warning light. It does not turn off after starting the engine, indicating a serious issue with the occupant restraint system and compromising its functionality in the event of a crash.

During workshop diagnostics, specific error codes can be retrieved from the fault memory. Entries directly pointing to stored accident data or an internal hardware fault within the control unit clearly indicate a defect in the module itself.

In some cases, the control unit may fail completely, losing all communication via the OBD diagnostic interface. The diagnostic tool then cannot establish a connection to the airbag system, further suggesting a severe internal malfunction.

In which vehicles is the 95910-G2500 control unit installed?

The airbag control unit with part number 95910-G2500 is specifically designed for models manufactured by Hyundai. At Airbag24, we repair this control unit for both the first generation of the Hyundai Ioniq AE and its facelifted variants, regardless of the powertrain type (hybrid, plug-in hybrid, or electric).

The part number 95910-G2500 is used exclusively in the following vehicle models and series:

Hyundai: Ioniq AE (model years 2016–2019) and Ioniq AE Facelift (model years 2019–2022).

This designation applies across all Ioniq variants, including hybrid, plug-in hybrid, and fully electric (EV) versions, depending on the regional market and equipment level.

How does repair of the 95910-G2500 proceed at Airbag24?

At Airbag24, repairs follow a professional process: After you send us your removed control unit, we perform an incoming inspection, fix the defect—whether it’s erasing crash data or repairing the hardware—and finally test its functionality on a diagnostic bench.

The process begins with the proper removal of the control unit at your workshop. Please disconnect the vehicle battery beforehand and observe the required waiting period to ensure safe discharge of the system’s capacitors. The control unit is typically installed in the center tunnel area.

Upon receipt at Airbag24, a comprehensive diagnosis is carried out. We read out the fault memory and analyze the hardware. Depending on the findings, stored crash data is erased and the unit restored to factory settings, or defective electronic components such as driver ICs or voltage regulators are replaced.

Following repair, each control unit undergoes a final test, simulating correct communication and activation of all outputs. You receive a fully functional component that retains its original vehicle identification number (VIN), so no re-coding is necessary. We provide 2 years' statutory liability for defects on the repair.