Airbag control unit with part number 98221FJ310

What does the airbag control unit 98221FJ310 do?

The airbag control unit 98221FJ310 manages the restraint system (SRS) of Subaru. Based on the crash sensors, it determines in an accident, within milliseconds, which airbags and seatbelt pretensioners are triggered.

During operation it checks the system and shows faults via the airbag warning light. After an accident it stores crash data and locks itself; the lock ends only with the repair.

Why does the control unit 98221FJ310 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Other possible causes are ageing electronic components, cold solder joints, moisture and corrosion at connectors, and voltage spikes.

Crash data stays in the unit. A normal diagnostic tool cannot delete it, but Airbag24 removes it during the repair.

The other causes act over a longer period. Electronics age, solder joints can make poor contact, and moisture and corrosion affect the connectors.

Voltage spikes when starting, for example with a weak battery or during a jump start, also put strain on the unit.

How can you tell that the 98221FJ310 is defective?

The airbag warning light in the instrument cluster, which stays on permanently or intermittently, is a clear sign. Accompanying symptoms can be a fault message in the instrument cluster, no connection to the diagnostic tool, or a fault memory that cannot be cleared. In that case, airbags and seatbelt pretensioners may not deploy in an emergency.

In everyday use, a glance at the instrument cluster is enough to see the display.

The system sets this display itself as soon as it detects a fault.

Which vehicles is the 98221FJ310 fitted in?

The details come from the assignment held by Airbag24. The control unit 98221FJ310 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 following list shows the recorded vehicles.

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

Comparing the part number on the label with this page makes sure that it is the correct unit. The question of a defect is answered only by the fault memory, which you have read out beforehand: it shows whether the control unit is affected or whether a connector or a cable is causing the failure.

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 98221FJ310 work?

First have the fault memory read out and enclose the readout log; then disconnect the battery and only after that remove the control unit. Create a repair order online and send the unit in, well packed. At Airbag24, processing usually takes 3–4 working days.

The sequence is mandatory for safety reasons.

Airbag24 checks the unit, replaces defective components, deletes the stored crash data and carries out a function test. Afterwards you receive your own unit back.

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 98221FJ310 get to Airbag24?

You send the unit as a parcel, or you book a UPS collection for an extra charge. The return after the repair is made by UPS.

Enclose the printed repair order with the parcel, and pack the unit shockproof.