Airbag control unit with part number 95910-S8420

What does the airbag control unit 95910-S8420 do?

The airbag control unit 95910-S8420 coordinates the restraint system (SRS) in Hyundai. In an accident it processes the values from the crash sensors and decides within milliseconds which airbags and seatbelt pretensioners are triggered. It also checks the system permanently and reports faults via the airbag warning light.

In the vehicle, the unit works without interruption with the sensors and the triggers.

After an accident, it retains crash data and locks itself.

Why does the control unit 95910-S8420 fail?

Crash data remains stored in the 95910-S8420 after an accident, even if no airbag deployed, and it is the most common cause. A diagnostic tool from the trade does not remove it. Other causes are ageing of the components, moisture and corrosion at plug connectors, cold solder joints and voltage spikes.

During the repair, Airbag24 removes this data.

Components age over time, and solder joints can cause contact problems. Moisture attacks plug connectors and promotes corrosion.

A weak battery or a jump start can cause voltage spikes that act directly on the electronics.

How can you tell that the 95910-S8420 is defective?

The defect on the 95910-S8420 shows itself through the airbag warning light in the instrument cluster, which lights up permanently or intermittently. Added to this are fault messages, a missing connection to the diagnostic tool or a fault memory that cannot be cleared.

• Warning light in the instrument cluster, on permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool cannot find the control unit
• Fault memory remains after the clearing attempt

The light indicates the defect as soon as the system detects it. A diagnostic tool then reads out the fault memory.

As long as the fault persists, airbags and seatbelt pretensioners may fail to deploy in an emergency. Have the system checked promptly.

Which vehicles is the 95910-S8420 fitted in?

The airbag control unit 95910-S8420 is fitted in these vehicles: Hyundai Palisade LX2 Facelift (2022-2025) and LX2 (2018-2022).

These vehicles are listed:

• Hyundai Palisade LX2 Facelift (2022-2025)
• Hyundai Palisade LX2 (2018-2022)

The label on the removed unit gives the part number, which you match against this page. That tells you that you have the right unit, nothing more. Have the fault memory read out beforehand, because only this result 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-S8520, 95910-S8530.

How does the repair of the 95910-S8420 work?

First have the fault memory read out and attach the log to the unit. Then disconnect the battery, and only after that remove the control unit 95910-S8420. Online, you create a repair order and send in the well-packed unit. For checking, repairing and testing at Airbag24, 3–4 working days are usually planned.

Airbag24 investigates the fault on the test bench, replaces defective components, removes the crash data and tests the function.

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. Afterwards, the unit is sent back to you.

How does the control unit 95910-S8420 get to Airbag24?

The control unit 95910-S8420 reaches Airbag24 as a parcel or by UPS collection for an extra charge. The return journey is also by UPS. Please place the printed repair order in the parcel.

Pack the unit so that shocks are cushioned.