Airbag control unit with part number 98221CC070

What does the airbag control unit 98221CC070 do?

In the restraint system (SRS) of Subaru, the airbag control unit 98221CC070 acts as the evaluation centre. It processes the signals from the crash sensors, decides within milliseconds in an accident which airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

If it detects a fault, it indicates this via the airbag warning light. After an accident it stores crash data and locks itself.

Why does the control unit 98221CC070 fail?

The most common cause is stored crash data after an accident, even without a deployed airbag. In addition, ageing, moisture and voltage spikes occur as causes.

Crash data cannot be deleted with a normal diagnostic tool. Airbag24 takes care of this during the repair.

Other possible causes include:

• age-related damage to components
• solder joints that go cold over time
• corrosion and moisture at connectors
• voltage spikes, for example from a weak battery or jump-starting

How can you tell that the 98221CC070 is defective?

A defect shows up as the airbag warning light in the instrument cluster staying on permanently or intermittently. Error messages in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be cleared are also signs.

• Airbag warning light on permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool receives no connection to the control unit
• Fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners could then possibly not trigger. Have this warning signal checked promptly.

Which vehicles is the 98221CC070 fitted in?

For 98221CC070, this applies: the control unit is fitted in these vehicles: Subaru BRZ ZD8 (from 2021).

The list shows the vehicles for this part number.

• Subaru BRZ ZD8 (from 2021)

You compare the part number on the label with this page. It only shows that you have the correct unit in front of you. Have the fault memory read out beforehand, because it shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 98221CC001, 98221CC120.

How does the repair of the 98221CC070 work?

The repair of the 98221CC070 begins with reading out the fault memory; you enclose the log. Then you disconnect the battery and only then remove the control unit. Finally, create the repair order online and send the unit in well packed.

On the test bench, Airbag24 checks the unit, replaces defective components, deletes stored crash data and carries out a function test. For this Airbag24 normally allows 3–4 working days; afterwards your own unit returns 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 98221CC070 get to Airbag24?

Shipping is by parcel; alternatively you book a UPS collection for an extra charge. After the repair is complete, your own unit comes back to you by UPS.

Do not forget the printed repair order; it goes in the parcel. Pack the control unit shockproof.