Airbag control unit with part number 95910-CM300

What does the airbag control unit 95910-CM300 do?

The airbag control unit 95910-CM300 is the central unit of the restraint system (SRS) of Hyundai. It processes the signals from the crash sensors and, in an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered.

The system checks itself continuously. Detected faults are indicated by the unit via the airbag warning light.

After an accident, it stores crash data and locks itself. Only the repair lifts this lock.

Why does the control unit 95910-CM300 fail?

Most often the fault on the 95910-CM300 lies in crash data stored after an accident, even if no airbag was triggered. Aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes are also possible causes.

Crash data remains stored in the unit, and a normal diagnostic tool cannot erase it. Airbag24 erases it during the repair.

Aged electronic components and cold solder joints worsen signal transmission over time. Moisture and corrosion attack the plug connections.

Voltage spikes arise, for example, from a weak battery or when jump-starting. Which cause applies in the individual case is shown only by the fault memory together with a test.

How can you tell that the 95910-CM300 is defective?

The airbag warning light in the instrument cluster lights up on the 95910-CM300 permanently or intermittently and thus indicates a fault. In addition, there are error messages in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared.

With this finding, airbags and seatbelt pretensioners may not trigger in an emergency. The warning light therefore remains a notice you should take seriously.

Which vehicles is the 95910-CM300 fitted in?

The control unit 95910-CM300 is fitted in these vehicles: Hyundai Kona OS (2017-2020) and OS Facelift (2020-2023). Whether your own vehicle is among them is shown by comparing the part number on the label of the removed unit with this page.

For this part number, we have records of these vehicles:

• Hyundai Kona OS (2017-2020)
• Hyundai Kona OS Facelift (2020-2023)

Comparing the part number only confirms that it is the right unit. First have the fault memory read out. Only this log shows whether the control unit itself is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 95910-CM200, 95910-DF100, 95910-J9100, 95910-J9200, 95910-K4100.

How does the repair of the 95910-CM300 work?

You first have the fault memory read out and enclose the log, then disconnect the battery. Only after that do you remove the control unit 95910-CM300 and create a repair order online. Testing, repair and function test at Airbag24 usually take 3–4 working days.

The order is fixed for safety reasons, and you keep to it exactly.

Airbag24 tests the unit on the test bench and replaces defective components. In addition, Airbag24 erases stored crash data; a function test follows. Your own unit is then 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-CM300 get to Airbag24?

You send the control unit 95910-CM300 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 takes care of the return of the unit by UPS.

Enclose the printed repair order in the parcel. Pack the unit shock-proof and well padded.