Airbag control unit with part number 98820-6UU2A

What does the airbag control unit 98820-6UU2A do?

The airbag control unit 98820-6UU2A coordinates the restraint system (SRS) in Nissan. It processes the messages from the crash sensors and determines within milliseconds in an accident which airbags and seatbelt pretensioners are triggered. At the same time it checks the system continuously and shows faults on the airbag warning light.

Part of its work happens in the background: while driving, the unit checks the connection to sensors, seatbelt pretensioners and airbags.

After an accident it stores crash data and locks itself.

Why does the control unit 98820-6UU2A fail?

Stored crash data are the most common cause, even if no airbag triggered in the accident. An ordinary diagnostic tool cannot erase them. Other causes are aged components, moisture and corrosion, cold solder joints, and voltage spikes.

The other causes are not recognised at first glance. In detail, these come into consideration:

• Aged electronic components
• Cold solder joints on the circuit board
• Moisture and corrosion at plug connections
• Voltage spikes, for example from a weak battery or a jump start

How can you tell that the 98820-6UU2A is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently and thus signals a fault. A fault message may appear in addition. If the diagnostic tool cannot connect to the control unit, a defect may be present.

In this condition, airbags and seatbelt pretensioners may fail to trigger in an emergency. Take the warning light seriously, even if the vehicle otherwise runs normally.

A fault memory that cannot be cleared is a further sign that something in the system is wrong.

Which vehicles is the 98820-6UU2A fitted in?

The details apply to Nissan and to this control unit with the number 98820-6UU2A. It is fitted in these vehicles: Nissan Qashqai J12 (2021-2024) and J12 Facelift (from 2024).

The vehicles are listed individually here:

• Nissan Qashqai J12 (2021-2024)
• Nissan Qashqai J12 Facelift (from 2024)

Comparing the part number on the label of the removed unit with this page only ensures that you have the right unit. Whether the control unit itself is defective or whether a plug or cable is the trigger is shown only by the fault memory. Have it read out beforehand.

For the same vehicles, we also repair control units with the part numbers 98820-6UD0B, 98820-6UM0B, 98820-6UT0A, 98820-6UT0B, 98820-9PV0A, 98820-9PV0C.

How does the repair of the 98820-6UU2A work?

First have the fault memory read out and enclose the log with the unit. Then disconnect the battery, and only after that remove the control unit. Then create a repair order online and pack the unit well for sending.

Airbag24 checks the control unit on the test bench, replaces defective components and erases stored crash data. A function test concludes the work, after which your own unit goes back to you.

The check, repair and test usually take 3–4 working days. 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 98820-6UU2A get to Airbag24?

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

The printed repair order belongs in the parcel. The unit should be packed shockproof.