Airbag control unit with part number 95910-B4050

What does the airbag control unit 95910-B4050 do?

The airbag control unit 95910-B4050 is the central control unit of the SRS for Hyundai. It evaluates sensor signals, decides in an accident within milliseconds on airbags and seatbelt pretensioners, and monitors the system continuously. After an accident it stores crash data and locks itself.

The unit detects faults itself and shows them via the airbag warning light in the instrument cluster.

While driving, the control is not visible. It only intervenes in an accident and monitors the system quietly beforehand.

Why does the control unit 95910-B4050 fail?

The most common cause with the 95910-B4050 is the crash data stored after an accident, even without an airbag having deployed. The other causes are aged electronics, moisture and corrosion at plugs, and voltage spikes, for example from a weak battery.

• Aged electronic components.
• Cold solder joints on the circuit board.
• Moisture and corrosion at plug connections.
• Voltage spikes, for example from a weak battery or a jump start.

A normal diagnostic tool cannot erase crash data. That is why this cause takes priority in fault-finding after an accident.

The other causes can only be clearly identified on the unit itself.

How can you tell that the 95910-B4050 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently on the 95910-B4050, and a fault message appears in the instrument cluster. In addition there is a diagnostic tool with no connection to the control unit, or a fault memory that cannot be cleared; in an emergency, airbags and seatbelt pretensioners may then fail to trigger.

The warning light makes the fault visible as soon as the unit detects it, and prompts you to have it checked.

A disrupted connection to the diagnostic tool can also be caused by a plug or a cable, not necessarily by the control unit itself.

Which vehicles is the 95910-B4050 fitted in?

In these vehicles the control unit 95910-B4050 is fitted: Hyundai i10 IA Facelift (2017-2019) and IA (2013-2016).

The list below shows each model on its own line.

• Hyundai i10 IA Facelift (2017-2019)
• Hyundai i10 IA (2013-2016)

Comparing the part number on the label of the removed unit with this page only confirms the identity of the unit. Have the fault memory read out beforehand, because only this log shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 202009795, 624578100, 95910-B9250.

How does the repair of the 95910-B4050 work?

First have the fault memory read out; the log goes with the unit. Then disconnect the battery, remove the control unit, create a repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

This procedure exists for safety reasons, because work is carried out on the restraint system.

At Airbag24 the unit is first examined on the test bench; then defective components are repaired and stored crash data erased. A function test completes the work, after which your own unit is returned to you.

Our repairs come with 2 years' statutory liability for defects.

The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 95910-B4050 get to Airbag24?

You send the control unit 95910-B4050 as a parcel or have it collected by UPS for an extra charge. UPS brings the unit back to you after the repair.

The printed repair order must go into the parcel, and the unit must be packed shock-resistant.