Airbag control unit with part number 98820-4GR0B

What does the airbag control unit 98820-4GR0B do?

The airbag control unit 98820-4GR0B regulates the restraint system (SRS) in Infiniti vehicles. It reads the crash sensors, decides in an accident which airbags and seatbelt pretensioners fire, and keeps an eye on the state of the system. It indicates faults via the airbag warning light.

The unit works in the background, and you only notice its work when something is wrong.

After an accident it stores crash data and locks itself.

Why does the control unit 98820-4GR0B fail?

The most common cause is crash data stored after an accident, even if no airbags fired. Aged components, cold solder joints, moisture and corrosion at connectors, and voltage spikes also play a role.

A standard diagnostic tool cannot erase this crash data. Airbag24 removes this cause during the repair.

The remaining causes affect the electronics or the power supply. Whether they are present can only be clarified by examining the unit.

How can you tell that the 98820-4GR0B is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently. The signs also include a fault message in the instrument cluster, a missing connection to the diagnostic tool, and a fault memory that cannot be cleared.

As long as these signs persist, airbags and seatbelt pretensioners may fail to deploy in an emergency.

Therefore have the light checked promptly and do not wait to see whether it goes out on its own.

Which vehicles is the 98820-4GR0B fitted in?

The control unit 98820-4GR0B is fitted in these vehicles: Infiniti Q50 V37 (2013-2024).

This assignment shows the models with this unit:

• Infiniti Q50 V37 (2013-2024)

Matching the label against this page gives you certainty that the unit fits. In addition, have the fault memory read out before you remove anything, because only the log shows whether the control unit itself or a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 988206HE0A, K8820-4HL0A.

How does the repair of the 98820-4GR0B work?

First have the fault memory read out and add the log. Then disconnect the battery, and only then remove the control unit. The repair order is created online; afterwards you send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 first examines the unit on the test bench, replaces damaged components and removes the crash data. Finally comes a function test, after which your own unit is returned 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 98820-4GR0B get to Airbag24?

You can send the unit in as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS. The printed repair order goes into the parcel as well.

The packaging should be shock-resistant, otherwise transport damage is a risk.