Airbag control unit with part number 98221AN030

What does the airbag control unit 98221AN030 do?

As airbag control unit 98221AN030, it coordinates the restraint system (SRS) in Subaru vehicles. The signals from the crash sensors converge in it, and in an accident it triggers the appropriate airbags and seatbelt pretensioners within milliseconds. It shows faults in this system via the airbag warning light.

The unit continuously checks the connections and the power supply to the airbags and seatbelt pretensioners. This happens in the background while you drive.

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

Why does the control unit 98221AN030 fail?

Crash data from an accident that remains stored in the unit is the most common cause, even if no airbag has deployed. Ordinary diagnostic tools cannot delete it. Aged electronics, cold solder joints, moisture at plug connections and voltage spikes also put a strain on the unit.

Stored data of this kind cannot be removed with a diagnostic tool. It is only deleted during the repair by Airbag24.

The other causes are wear and environmental influences. A jump start or a weak battery can also produce voltage spikes that stress the electronics.

How can you tell that the 98221AN030 is defective?

The airbag warning light is the most important warning sign: it either stays on permanently or flickers from time to time. Other signs are fault messages in the instrument cluster, no connection to the diagnostic tool and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

These signs occur individually or in combination. Pay particular attention to:

• airbag warning light is on constantly
• intermittent lighting up while driving
• message in the instrument cluster
• diagnostic tool cannot find the control unit
• fault memory remains

Please report such irregularities to a workshop promptly, because a fault in the restraint system does not resolve itself if you wait.

Which vehicles is the 98221AN030 fitted in?

The control unit 98221AN030 is fitted in these vehicles: Subaru Forester SK (2018-2021) and SK Facelift (from 2021). Compare your car with this selection before you start.

The following list shows the vehicles known to us for this part number.

• Subaru Forester SK (2018-2021)
• Subaru Forester SK Facelift (from 2021)

First, compare the part number on the label of the unit with this page. That way you can be sure it is the correct unit. Then have the fault memory read out. Only this 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 1523004370, 98221FC210, 98221SJ000, 98221SJ001.

How does the repair of the 98221AN030 work?

First, have the fault memory read out and attach the log. Then disconnect the battery and remove the control unit 98221AN030. Next, create the repair order online and send in the unit.

At Airbag24 the unit is checked, faulty components are replaced, the crash data is deleted and a function test is carried out.

For testing, repairing and checking, Airbag24 usually needs 3–4 working days. Afterwards 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 98221AN030 get to Airbag24?

You either send the control unit 98221AN030 yourself as a parcel, or you book a UPS collection for an extra charge. After the repair, the return is made by UPS.

Packed shock-proof and with the printed repair order in the parcel, the unit reaches Airbag24 safely.