Airbag control unit with part number 95910-C4000

What does the airbag control unit 95910-C4000 do?

The airbag control unit 95910-C4000 is the control unit of the restraint system (SRS) of Hyundai. It processes the signals from the crash sensors, decides in an accident within milliseconds which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. Faults that occur are indicated via the airbag warning light.

After an accident, the unit stores crash data and locks itself. The monitoring works in the background while the vehicle is driving.

The messages from several sensors converge in the control unit, and this forms the basis of every triggering decision.

Why does the control unit 95910-C4000 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. In addition come aged electronic components, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes.

The crash data remains in memory, and a normal diagnostic tool cannot remove it. Airbag24 erases it during the repair.

Aged components and cold solder joints change the behaviour of the circuit. Moisture and corrosion on plug connectors disturb the contact, and voltage spikes from a weak battery or a jump start put the electronics under load.

How can you tell that the 95910-C4000 is defective?

The defect is recognisable by the airbag warning light in the instrument cluster when it stays on permanently or intermittently. In addition, a fault message in the instrument cluster, a missing connection to the diagnostic tool, or a fault memory that cannot be cleared may occur. Airbags and seatbelt pretensioners may then not trigger in an emergency.

If the warning light starts to flicker or stays on, the system is signalling that something is wrong, and this deserves attention.

These signs together are a clear reason for a check.

Which vehicles is the 95910-C4000 fitted in?

The control unit 95910-C4000 is fitted in these vehicles: Hyundai Santro AH2 (2018-2022). Anyone with a different car checks the part number on the removed unit against this page.

The following list contains the vehicles stored for this part number.

• Hyundai Santro AH2 (2018-2022)

The comparison of the label only confirms that it is the correct unit. Whether the control unit is defective or a plug or cable is the cause is shown by the fault memory read out beforehand.

For the same vehicles, we also repair control units with the part numbers 5WK49251.

How does the repair of the 95910-C4000 work?

First you read out the fault memory, then disconnect the battery and only then remove the control unit. Afterwards you create the repair order online and send the well-packed unit in. Processing at Airbag24 usually takes 3–4 working days.

The log belongs with the shipment, and the order of steps must be observed for safety reasons.

Airbag24 checks the control unit, repairs the faulty components, erases the crash data and concludes with a function test. Afterwards you receive your own unit back.

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-C4000 get to Airbag24?

Either you send the unit as a package, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

Enclose the printed repair order in the package and pack the control unit shockproof.