Airbag control unit with part number 98221FG110

What does the airbag control unit 98221FG110 do?

The airbag control unit 98221FG110 controls the restraint system (SRS) in vehicles from Subaru. It evaluates the signals from the crash sensors and decides in a crash which airbags and seatbelt pretensioners fire. After a crash it stores crash data and locks itself.

Monitoring runs throughout the entire journey. If the unit detects a fault, the airbag warning light symbol appears in the instrument cluster.

The self-test covers sensors, connections and actuators. It must work reliably, especially in a crash.

Why does the control unit 98221FG110 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump start, also play a role.

The control unit records the crash data in an accident, regardless of whether airbags deploy. It is the most common cause, but not the only one.

The other causes lie in the electronics or their surroundings. Solder joints can go cold, components age, and voltage spikes when starting add further strain to the unit.

How can you tell that the 98221FG110 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and an error message appears on the display. The diagnostic tool cannot find the control unit, and the fault memory cannot be cleared. As a result, the airbags and seatbelt pretensioners may fail to deploy in an emergency.

The light reports the fault directly, which is why it is the most important sign. It lights up briefly after switching on the ignition; if it stays on afterwards, a reported fault is present.

Even without the light, a problem may exist if the diagnostic tool does not connect.

Which vehicles is the 98221FG110 fitted in?

The control unit 98221FG110 is found in these vehicles: Subaru Impreza GH (2007-2014).

The overview lists the models in which this part number occurs.

• Subaru Impreza GH (2007-2014)

Only remove the unit after you have compared the part number on the label with this page; that only confirms that it is the correct unit. Whether there is a defect is shown by the fault memory. Have it read out beforehand, because only the report clarifies whether the control unit is defective or a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 98221FG000, 98221FG040, 98221FG060, 98221FG070.

How does the repair of the 98221FG110 work?

The fault memory is read out first, and you attach the report. Then you disconnect the battery and only then remove the control unit. Next you create a repair order online and send the unit in well packed.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. Processing usually takes 3–4 working days, after which your own unit is returned.

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 98221FG110 get to Airbag24?

You hand in the unit as a parcel or have a UPS collection booked for an extra charge. It goes back by UPS once Airbag24 has completed the repair.

Pack the printed repair order along with the unit and protect the control unit with shockproof packaging.