Hyundai Ioniq 9 airbag control unit repair⁽¹⁾

What should be considered with Hyundai Ioniq 9 airbag control units?

The airbag control unit of the Hyundai Ioniq 9 evaluates the crash sensors and controls the triggering of the airbags and belt tensioners. It also monitors the restraint system and reports faults via the airbag warning light.

After an accident, the control unit stores crash data and locks itself. Whether a unit can be repaired only becomes clear once the removed control unit has been tested.

Airbag24 repairs your own control unit in its workshop in Berlin and erases the crash data where required. As the airbag system is safety-relevant, work on the vehicle should only be carried out by a specialist workshop.

Which Hyundai Ioniq 9 generations are there?

So far, only the ME1 series is known for the Hyundai Ioniq 9. It has been in production since 2025 and is offered in Europe.

• ME1 (since 2025) – current series of the Hyundai Ioniq 9, still in production.

What counts for classification is the series. It can be determined from the vehicle identification number (VIN) and the year of manufacture. The series determines which control unit variant belongs to your vehicle.

How do I identify my Hyundai Ioniq 9 airbag control unit?

The part number on the label of the control unit determines the exact version. Together with the year of manufacture and the equipment of your vehicle, it is a key reference for the repair.

Before sending the unit in, note down the part number, the year of manufacture and the vehicle identification number (VIN). These details make it possible to assign the version of the unit clearly.

The fault memory may show codes such as B1651 (crash stored: driver's front airbag triggered), B1620 (internal fault in the airbag control unit) or B1101 (supply voltage of the control unit too high). However, a code alone does not prove a defect. Only testing the unit shows what is actually present.

Which airbag equipment does the Hyundai Ioniq 9 have?

According to the manufacturer, the Hyundai Ioniq 9 has ten airbags in total, including a driver's knee airbag and side airbags in the second row. Which other airbags are fitted depends on equipment and market.

The airbag control unit coordinates these airbags and the belt tensioners. In a crash, it evaluates which airbags are triggered. It is therefore the central unit of the restraint system, and a defective unit impairs the function of the entire system.

The route to repair works as follows: have the fault memory read out, have the battery disconnected and have a specialist workshop remove the control unit. Then create a repair order online and pack the unit carefully and send it in by parcel. Processing usually takes 3–4 working days and includes checking, repairing and testing.

The repaired control unit comes back with all vehicle data and is ready for use immediately after refitting — no coding or programming is required.