Airbag control unit with part number 95910-2W500

What does the airbag control unit 95910-2W500 do?

The airbag control unit 95910-2W500 is the control centre of the restraint system (SRS) for Hyundai. It checks the crash sensors, determines in an accident within milliseconds which airbags and seatbelt pretensioners trigger, and monitors the entire system.

The unit reports faults via the airbag warning light in the instrument cluster. That the sensors supply measured values while the control unit makes the decision is the division of labour in the system.

After an accident, the control unit stores crash data and locks itself. The following sections explain how a failure arises and how it shows itself.

Why does the control unit 95910-2W500 fail?

On the 95910-2W500, the most common cause is crash data stored after an accident, even if no airbag has fired. Further causes include ageing components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data cannot be erased with a normal diagnostic tool. The unit therefore keeps it until the repair removes it, and reading out the fault memory alone changes nothing.

Ageing components and cold solder joints are typical weak points of the electronics. Over time, connections can weaken, even without an accident having taken place.

Moisture and corrosion affect the plug connections and disturb the contact. Voltage spikes, for example from a weak battery or a jump start, additionally strain the electronics.

How can you tell that the 95910-2W500 is defective?

The airbag warning light in the instrument cluster lights up on the 95910-2W500, either permanently or intermittently. An error message in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be cleared also indicate a defect.

The warning light shows that the system has detected a fault and is reporting it. Airbags and seatbelt pretensioners may possibly not deploy in an emergency for as long as the fault persists.

Reading out the fault memory gives you a quick picture of the affected area.

Which vehicles is the 95910-2W500 fitted in?

The 95910-2W500 is fitted in these vehicles: Hyundai Santa Fe DM (2012-2015) and DM Facelift (2015-2018).

The list below shows the vehicles recorded for this part number.

• Hyundai Santa Fe DM (2012-2015)
• Hyundai Santa Fe DM Facelift (2015-2018)

Comparing the part number on the label of the removed unit with this page shows only whether it is the right unit. Please have the fault memory read out beforehand, because only it shows whether the control unit is faulty or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 95700-2B110, 95910-0W100, 95910-26100, 95910-2B028, 95910-2B900, 95910-2B970.

How does the repair of the 95910-2W500 work?

First read out the fault memory and enclose the log, then disconnect the battery. Only then remove the control unit, and afterwards create the repair order online before sending it in. At Airbag24, testing, repair and function test usually take 3–4 working days.

The sequence is mandatory for safety reasons, and a removal without the preceding steps is not provided for.

At Airbag24, the unit is examined on the test bench, defective components are replaced, the stored crash data is erased and a function test is carried out. Your own unit is then returned.

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 95910-2W500 get to Airbag24?

You send the control unit 95910-2W500 as a parcel, or you book a UPS collection for an extra charge. The return after the repair is made by UPS.

Enclose the printed repair order in the parcel. Pack the unit shock-resistant.