Airbag control unit with part number 98820-9GK1B

What does the airbag control unit 98820-9GK1B do?

In the restraint system (SRS) of Nissan, the airbag control unit 98820-9GK1B acts as the central switching hub. It evaluates the crash sensors, determines within milliseconds of an accident which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. Faults are shown via the airbag warning light.

After an accident, the control unit stores crash data and locks itself. Otherwise, the control unit runs quietly in the background.

The unit saves any faults it finds in the fault memory, which can be read out with a diagnostic tool.

Why does the control unit 98820-9GK1B fail?

With the 98820-9GK1B, stored crash data from an accident is the most common cause, even if no airbag has deployed; a standard diagnostic tool cannot erase it. Other possible causes are aged components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

Stored crash data remains in the control unit until Airbag24 removes it during the repair. A standard diagnostic tool cannot reach these entries.

The remaining causes concern the electronics and the environment: components age, solder joints can go cold, moisture attacks plug connectors, and voltage spikes occur, for example, with a weak battery or jump-starting.

How can you tell that the 98820-9GK1B is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, indicating a fault in the 98820-9GK1B. A missing connection between the diagnostic tool and the control unit, and an error message in the instrument cluster, may also occur. In that case, airbags and seatbelt pretensioners may not deploy in an emergency.

The warning light is the system's clear signal, so it reports the fault itself. Please have the fault checked promptly.

A fault memory that cannot be cleared is also a sign you should not overlook.

Which vehicles is the 98820-9GK1B fitted in?

The control unit 98820-9GK1B is fitted in these vehicles: Nissan Titan H61 Facelift (2020-2024).

For orientation, the list of assigned models follows.

• Nissan Titan H61 Facelift (2020-2024)

Compare the part number on the label of your removed unit with this page; this only confirms that you have the right unit. Have the fault memory read out beforehand. Only this result 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 285013989, 98820-EZ20B, 98820-EZ29B.

How does the repair of the 98820-9GK1B work?

First have the fault memory read out and enclose the log, disconnect the battery, and only then remove the control unit 98820-9GK1B. Then create a repair order online and send the unit in, well packed.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. Your own unit is then returned to you.

Processing at Airbag24 usually takes 3–4 working days. This time covers only the checking, repairing and testing, and none of your steps or the shipping. 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 98820-9GK1B get to Airbag24?

You send the 98820-9GK1B in as a parcel or book a UPS collection for an extra charge. After the repair, UPS brings the unit back to you from Airbag24.

The printed repair order goes in the parcel; the control unit must be packed shock-proof.