Airbag control unit with part number 95910-1R550

What does the airbag control unit 95910-1R550 do?

The airbag control unit 95910-1R550 controls the restraint system (SRS) of Hyundai. It processes the measurements of the crash sensors, triggers airbags and seatbelt pretensioners in an accident, and checks the entire system during operation. After an accident it locks itself; the lock is lifted only by the repair.

The control unit decides within a fraction of a second which triggers are activated. The device itself registers faults in the safety system and stores them in the fault memory.

These faults are displayed via the airbag warning light in the instrument cluster. This makes the control unit the central check point of the restraint system.

Why does the control unit 95910-1R550 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool does not erase it. Further causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery.

Crash data are records that the control unit creates after an event. That no airbag was triggered does not rule out these entries. An ordinary diagnostic tool does not reach them to erase them, so only a repair removes the entry.

The other causes tend to develop gradually. Electronic components age, solder joints can go cold, and moisture or corrosion attack the contacts at plug connections.

Voltage spikes arise, for example, with a weak battery or when connecting a jump start, and can load the electronics.

How can you tell that the 95910-1R550 is defective?

An airbag warning light in the instrument cluster that stays on permanently or intermittently, an error message in the instrument cluster, no connection from the diagnostic tool to the control unit, and a fault memory that cannot be cleared all indicate a defect.

The airbag warning light is the most important sign. It can stay on permanently or only flicker intermittently, and an error message in the instrument cluster accompanies it.

If the connection to the diagnostic tool cannot be made, that is a further sign. If the fault memory stays full despite an attempt to clear it, the cause lies in the control unit itself.

As long as a defect exists, airbags and seatbelt pretensioners may fail to deploy in an emergency. A prompt check is therefore the right step.

Which vehicles is the 95910-1R550 fitted in?

The control unit 95910-1R550 is fitted in these vehicles: Hyundai Accent RB (2010-2017).

The following overview shows how the device is distributed across the models.

• Hyundai Accent RB (2010-2017)

Comparing the part number on the label confirms only that the removed unit matches this page. Have the fault memory read out beforehand. Only this log shows whether the control unit is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 95910-1R250, 95910-25200, 95910-25500.

How does the repair of the 95910-1R550 work?

First read out the fault memory and enclose the log, then disconnect the battery and only then remove the control unit 95910-1R550. Next, create the repair order online and send the unit in well packed. Airbag24 usually processes it within 3–4 working days.

The test bench at Airbag24 checks the unit. Defective components are replaced, stored crash data are erased and a function test is carried out.

Then your own unit goes back 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 95910-1R550 get to Airbag24?

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

Enclose the printed repair order and pack the unit shock-proof.