Airbag control unit with part number 95910-J3900

What does the airbag control unit 95910-J3900 do?

The airbag control unit 95910-J3900 controls the restraint system (SRS) of Hyundai. It reads the crash sensors, determines within milliseconds in an accident which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. Faults are reported via the airbag warning light. After an accident it stores crash data and locks itself.

The measurements from the crash sensors flow continuously into the control unit. The evaluation is designed so that the decision is made in time in an emergency.

In the event of a fault the unit reports it in the instrument cluster. You do not need to do anything for this.

Why does the control unit 95910-J3900 fail?

On the 95910-J3900 the most common cause is stored crash data after an accident, even if no airbag has deployed; a standard diagnostic tool cannot erase it. Further causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump start.

After an accident the unit stores the crash data, and it then locks itself. During the repair at Airbag24 stored crash data is deleted.

The other causes act over a longer period. Electronics age, solder joints can go cold, and moisture or corrosion leads to poor contact at the plugs.

How can you tell that the 95910-J3900 is defective?

A defect on the 95910-J3900 shows when the airbag warning light in the instrument cluster stays on permanently or intermittently, an error message appears, the diagnostic tool does not make a connection, or the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The airbag warning light in the instrument cluster is the first sign you notice. It shows the state of the system directly.

In addition, an error message or an unreachable diagnostic tool may point to the defect. In this case have the system checked promptly.

Which vehicles is the 95910-J3900 fitted in?

The control unit 95910-J3900 is fitted in these vehicles: Hyundai Veloster JS (2018-2022).

The overview shows the vehicles that are recorded for this part number at Airbag24.

• Hyundai Veloster JS (2018-2022)

Compare the part number on the label of the removed unit with this page first. That only confirms that it is the right unit. In addition, have the fault memory read out; only this result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 95910-K9000.

How does the repair of the 95910-J3900 work?

You have the fault memory read out and enclose the log before you disconnect the battery. Then remove the control unit and create a repair order online. Processing at Airbag24 usually takes 3–4 working days.

The sequence is prescribed for safety reasons, and you keep to it exactly.

Airbag24 checks the unit, replaces defective components, deletes stored crash data and carries out a function test. The processing time applies only to this work.

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-J3900 get to Airbag24?

You send the control unit 95910-J3900 as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 sends it back to you by UPS.

Put the printed repair order into the parcel, and pack the unit so that it withstands knocks.