Airbag control unit with part number 95910-4H380

What does the airbag control unit 95910-4H380 do?

The airbag control unit 95910-4H380 is the central control unit of the restraint system of Hyundai. It evaluates the signals from the crash sensors, decides within milliseconds in the event of an accident which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. After an accident it stores crash data and locks itself.

In normal operation the unit checks the connected components continuously for faults. If a fault is detected, it records it in the fault memory and indicates it via the airbag warning light in the instrument cluster.

The crash data that the control unit records after an accident describe how the event proceeded and remain stored in the unit. For the driver this is not visible in everyday use, as long as no fault is displayed.

Why does the control unit 95910-4H380 fail?

The most common cause is crash data stored after an accident, which cannot be erased with a normal diagnostic tool. Further causes are aged electronic components, cold solder joints, moisture and corrosion on plug connections, as well as voltage spikes, for example from a weak battery or jump-starting.

Crash data is stored as soon as the control unit registers an accident event, even if no airbag has triggered. A diagnostic tool that you connect for a readout cannot remove these entries. The vehicle therefore remains conspicuous, even though it drives normally again.

The other causes tend to act over time. Ageing and cold solder joints lead to loose contacts, moisture and corrosion attack plug connections, and voltage spikes in the vehicle electrical system can stress the electronics.

How can you tell that the 95910-4H380 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and a fault message appears in the instrument cluster. The diagnostic tool cannot find the control unit, and a fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

• The airbag warning light in the instrument cluster lights up permanently or only intermittently
• A fault message appears in the instrument cluster
• The diagnostic tool has no connection to the control unit
• The fault memory cannot be cleared

The warning light indicates faults that the control unit has detected itself. A light that comes on only intermittently is just as serious a warning as one that stays on.

If the diagnostic tool cannot establish a connection, the cause does not always lie in the control unit. A broken line can also cause this, which is why checking before removal is worthwhile.

Which vehicles is the 95910-4H380 fitted in?

The airbag control unit 95910-4H380 is fitted in these vehicles: Hyundai H-1 TQ (2008-2018) and TQ Facelift (2018-2020); Hyundai Starex TQ Facelift (2018-2020) and TQ (2008-2018); Hyundai i800 TQ. The part number only tells you which unit it is, not whether it is defective.

The following list shows the vehicles that are recorded for this part number. Compare your vehicle with it.

• Hyundai H-1 TQ (2008-2018)
• Hyundai H-1 TQ Facelift (2018-2020)
• Hyundai Starex TQ Facelift (2018-2020)
• Hyundai Starex TQ (2008-2018)
• Hyundai i800 TQ

Compare the part number on the label of the removed unit with this page. This only confirms that it is the correct unit. Have the fault memory read out beforehand, because only the log 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 285001924, 285001925, 95910-4H080, 95910-4H500, 959104H600, SA310720000.

How does the repair of the 95910-4H380 work?

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

The order is for safety reasons. The fault memory comes first, because its evaluation supports the finding later. Only then is the battery disconnected and the control unit removed.

You create the repair order online. Pack the unit so that it is not damaged in transit, and enclose the printout.

Airbag24 checks the unit on the test bench and repairs defective components. Afterwards Airbag24 erases the stored crash data and carries out a function test before your own unit is returned to you. Processing at Airbag24 usually takes 3–4 working days.

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 95910-4H380 get to Airbag24?

You send the control unit as a parcel to Airbag24 or book a UPS collection for an extra charge. After the repair, Airbag24 returns your own unit to you by UPS.

Place the printed repair order in the parcel and pack the control unit shockproof before handing it over.