Airbag control unit with part number 98221VC001

What does the airbag control unit 98221VC001 do?

The airbag control unit 98221VC001 forms the switching centre of the SRS restraint system on Subaru. In an accident, it checks the readings from the impact sensors before it activates airbags and seatbelt pretensioners.

At the same time, it monitors the system without interruption. It indicates faults via the airbag warning light in the instrument cluster.

In an accident, it secures crash data and then locks itself.

Why does the control unit 98221VC001 fail?

The most common cause is stored crash data, even if no airbag has deployed. Airbag24 erases it during the repair, because a standard diagnostic tool cannot remove it. Further causes that can affect the control unit 98221VC001 are also possible.

The other causes include:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connectors
• voltage spikes, for example from a weak battery or a jump start

How can you tell that the 98221VC001 is defective?

A defect shows up as the airbag warning light in the instrument cluster, which lights up permanently or intermittently. Added to this are a fault message in the instrument cluster, a diagnostic tool without a connection to the control unit 98221VC001, and a fault memory that cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then fail to deploy. The warning light shows the condition continuously, so it should not be overlooked.

Which vehicles is the 98221VC001 fitted in?

The control unit 98221VC001 is fitted in these vehicles: Subaru WRX VB (from 2021); Subaru Levorg VN (from 2020). Please confirm from your vehicle papers whether your car is among them.

The vehicles in detail:

• Subaru WRX VB (from 2021)
• Subaru Levorg VN (from 2020)

Matching the number on the label of the removed unit with this page only confirms the match. The decisive factor is the fault memory, which you have read out before removal, because only it reveals whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 98221VC030, 98221VC031, 98221VC200, 98221VC210.

How does the repair of the 98221VC001 work?

First have the fault memory read out and enclose the log. Then disconnect the battery, remove the control unit 98221VC001 and create a repair order online before you send the well-packed unit in.

Afterwards Airbag24 checks the unit on the test bench, replaces defective parts and erases the stored crash data. A function test follows, and processing usually takes 3–4 working days.

In the end your own unit is 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 98221VC001 get to Airbag24?

You send the control unit 98221VC001 as a parcel or arrange a UPS collection for an extra charge. The return after the repair also goes by UPS.

Stored in a shock-proof package, with the printed repair order in the parcel, the unit is properly prepared.