Airbag control unit with part number 98221SG130

What does the airbag control unit 98221SG130 do?

In the restraint system (SRS) of Subaru, the airbag control unit 98221SG130 is the point where the signals from the sensors come together. In the event of a crash, it decides within milliseconds which airbags and seatbelt pretensioners are triggered.

Outside of an accident, the unit works constantly in the background and monitors the wiring and sensors. It shows faults via the airbag warning light in the instrument cluster.

After an accident, the control unit stores crash data and locks itself. Only a repair can lift the lock again.

Why does the control unit 98221SG130 fail?

With the 98221SG130, the most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot delete this data. Other causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

• Ageing electronic components
• Cold solder joints
• Moisture and corrosion at plug connectors
• Voltage spikes, for example from a weak battery or a jump start

Airbag24 deletes the crash data during the repair. The fact that no airbag deployed makes no difference to this.

The other causes tend to act in the background: electronics age, solder joints can remain cold, and moisture attacks contacts.

How can you tell that the 98221SG130 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, indicating a defect in the 98221SG130. Fault messages may also appear in the instrument cluster, the diagnostic tool may fail to connect to the control unit, or the fault memory may not be erasable. In this case, the airbags and seatbelt pretensioners may not be able to deploy in an emergency.

The light reports the condition itself, so you do not need to wait for any further warning. If you notice anything unusual, have the fault read out promptly.

Which vehicles is the 98221SG130 fitted in?

The control unit 98221SG130 is fitted in the following vehicles: Subaru Forester SJ (2012-2016) and SJ Facelift (2016-2019).

The overview assigns the following models to this unit:

• Subaru Forester SJ (2012-2016)
• Subaru Forester SJ Facelift (2016-2019)

First compare the label on the removed unit with the part number here; this only clarifies which unit is the right one. Then have the fault memory read out. Only this will show whether the control unit is defective or whether a cable or a plug is causing the fault.

For the same vehicles, we also repair control units with the part numbers 98221-SJ370, 98221SG250, 98221SJ001.

How does the repair of the 98221SG130 work?

Have the fault memory read out and enclose the log. Then disconnect the battery, remove the 98221SG130, create a repair order online and send the unit in well packed.

Airbag24 checks the unit on the test bench, repairs defective components, deletes the stored crash data and carries out a function test. The unit is then returned to you.

For checking, repairing and testing, Airbag24 usually allows 3–4 working days. 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 98221SG130 get to Airbag24?

You either send the control unit 98221SG130 as a parcel, or you book a UPS collection for an extra charge. Airbag24 returns it to you by UPS after the repair.

Pack the unit so that it is shock-proof, and place the printed repair order in the parcel.