Airbag control unit with part number 98221FJ370

What does the airbag control unit 98221FJ370 do?

The airbag control unit 98221FJ370 is the control unit of the restraint system in Subaru vehicles. It evaluates sensors, decides in an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

Faults are displayed via the airbag warning light in the instrument cluster.

After an accident it stores crash data and locks itself.

Why does the control unit 98221FJ370 fail?

The most common cause in the 98221FJ370 is crash data stored after an accident, even without an airbag having fired. Aged components, cold solder joints, moisture and corrosion, and voltage spikes are also possible causes.

The other causes at a glance:

• Aged electronic components
• Cold solder joints
• Moisture and corrosion on plug connections
• Voltage spikes, for example from a weak battery or jump-starting

Crash data remains in the memory until it is specifically deleted. A normal diagnostic tool does not remove it.

How can you tell that the 98221FJ370 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently when something is wrong with the 98221FJ370. In addition there may be an error message in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared.

Such signs mean that airbags and seatbelt pretensioners may not fire in an emergency. The light shows this condition directly and should not be ignored.

Which vehicles is the 98221FJ370 fitted in?

The control unit 98221FJ370 is fitted in these vehicles: Subaru XV GP (2011-2016) and GP Facelift (2016-2018); Subaru Impreza GJ (2011-2018) and GP (2011-2018). The details refer to Subaru.

The list of vehicles:

• Subaru XV GP (2011-2016)
• Subaru XV GP Facelift (2016-2018)
• Subaru Impreza GJ (2011-2018)
• Subaru Impreza GP (2011-2018)

Compare the part number on the label of the removed unit with this page; this only confirms that it is the right unit. Also have the fault memory read out before removal, because this log shows whether the control unit itself is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 150300-9400, 152300-6130, 1523003971, 98221FE020, 98221FE100, 98221FJ030.

How does the repair of the 98221FJ370 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only afterwards remove the control unit. Then create a repair order online and send the unit in, well packed.

Processing at Airbag24 usually takes 3–4 working days. Airbag24 checks the unit on the test bench, renews defective components, deletes crash data and carries out a function test.

The unit then goes back 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 98221FJ370 get to Airbag24?

You send the control unit 98221FJ370 in as a parcel, or book a UPS collection for an extra charge. After the repair Airbag24 returns it by UPS.

Enclose the printed repair order in the parcel and pack the unit shock-proof.