Airbag control unit with part number 98820-6HW0B

What does the airbag control unit 98820-6HW0B do?

The airbag control unit 98820-6HW0B is the central control unit of the SRS restraint system for Nissan. It reads out the crash sensors, determines within milliseconds in a crash which airbags and seatbelt pretensioners fire, and checks the system constantly.

If it detects a fault, it reports it via the airbag warning light in the instrument cluster.

After an accident, the unit creates crash data and locks itself.

Why does the control unit 98820-6HW0B fail?

The most common cause is stored crash data after an accident, even if no airbag has fired; an ordinary diagnostic tool does not erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes from a weak battery or a jump start.

The crash data stays in memory until it is specifically removed. A fault can therefore occur long after the accident.

Older solder joints and plug contacts with moisture or corrosion lead to intermittent faults. Voltage spikes put additional stress on the components.

How can you tell that the 98820-6HW0B is defective?

A defect shows itself through the airbag warning light, through error messages and through a fault memory that cannot be erased.

• Airbag warning light in the instrument cluster, permanently or intermittently
• Error message in the instrument cluster
• No connection between diagnostic tool and control unit
• Fault memory cannot be cleared

In that case, airbags and seatbelt pretensioners may fail to deploy in an emergency. Have these signs checked promptly.

Which vehicles is the 98820-6HW0B fitted in?

The 98820-6HW0B is fitted in these vehicles: Nissan GT-R R35 (2007-2025).

The vehicles in which this control unit is recorded are listed below.

• Nissan GT-R R35 (2007-2025)

Comparing the part number on the label of the removed unit with this page only confirms that it is the correct unit. Having the fault memory read out beforehand, on the other hand, is how you find out whether the control unit itself or a plug or cable is causing the fault.

For the same vehicles, we also repair control units with the part numbers 98820-6AV0A, 98820JF43B, 98820JF70A.

How does the repair of the 98820-6HW0B work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the control unit. Online, create a repair order and send the unit in well packed. Airbag24 usually needs 3–4 working days for checking, repairing and testing.

The sequence is binding for safety reasons.

Airbag24 checks the unit on the test bench, replaces defective components and erases stored crash data. After a function test, your own unit is sent 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 98820-6HW0B get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. Airbag24 sends it back by UPS after the repair.

The printed repair order goes into the parcel, and the unit is packed shockproof.