Airbag control unit with part number 98221SJ460

What does the airbag control unit 98221SJ460 do?

The airbag control unit 98221SJ460 is the control unit of the SRS for Subaru. It receives the signals from the crash sensors, selects the appropriate airbags and seatbelt pretensioners in an impact, and monitors the entire system.

Since the system must work in an emergency, the unit checks it continuously. It reports detected faults via the airbag warning light in the instrument cluster, so that you keep an eye on the condition.

After an accident the control unit stores crash data and locks itself.

Why does the control unit 98221SJ460 fail?

The most common cause at the 98221SJ460 is crash data stored after an accident, even if no airbag has deployed. A standard diagnostic tool cannot remove it. Other causes are aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data arises in the control unit as soon as it registers an impact, and it stays in the memory. Because an ordinary diagnostic tool does not clear it, the fault persists until the repair removes the data.

The other causes affect the electronics themselves. Aged components, cold solder joints and moisture at the contacts disturb signal transmission. Voltage spikes, for example from a weak battery or a jump start, additionally stress the circuit, which can favour a failure.

How can you tell that the 98221SJ460 is defective?

A defect in the 98221SJ460 shows through the airbag warning light, which lights up permanently or intermittently in the instrument cluster. In addition there are error messages in the instrument cluster, a missing connection to the diagnostic tool, and a fault memory that cannot be cleared.

The airbag warning light is a clear sign that something in the system is not right. For the emergency case this means that airbags and seatbelt pretensioners may not be able to deploy if the control unit no longer works correctly.

If you notice these signs, have the cause clarified as soon as possible so that the fault does not persist. The messages do not always appear at the same time, so a single indication is already enough.

Which vehicles is the 98221SJ460 fitted in?

The control unit 98221SJ460 is fitted in these vehicles: Subaru Forester SK (2018-2021) and SK Facelift (from 2021).

The following list comes from the information that Airbag24 keeps for this part number.

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

Comparing the part number on the label of the removed unit with this page only confirms that it is the right unit. Have the fault memory read out beforehand, because only the result shows whether the control unit is defective or whether a connector 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 98221SJ460 work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the 98221SJ460. Create the repair order online, then send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, erases the stored crash data and carries out a function test. Afterwards the unit goes back to you.

Processing covers only the checking, repairing and testing at Airbag24. Readout, removal and shipping are not included.

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 98221SJ460 get to Airbag24?

You send the 98221SJ460 to Airbag24 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

The printed repair order goes in the parcel; pack the control unit shock-resistant.