Airbag control unit with part number 98820-6UH0C

What does the airbag control unit 98820-6UH0C do?

The 98820-6UH0C is the airbag control unit in the SRS restraint system of Nissan. It records the crash sensors, decides in an accident on the use of the airbags and seatbelt pretensioners, and monitors the system around the clock. Faults are reported via the airbag warning light.

It takes over the evaluation of the sensor data, checks wiring and trigger units, and stores deviations in the fault memory.

After an accident the unit creates crash data and locks itself. This lock is a separate state of the unit.

Why does the control unit 98820-6UH0C fail?

The most common cause is stored crash data after an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Other general causes are ageing electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Crash data are the most important point in this fault finding, because they remain in the unit even if the vehicle shows no visible damage any more.

The other causes mostly concern connections and components. Solder joints can age, and moisture or corrosion weaken plug contacts. Voltage spikes from the on-board electrical system, for example from a weakened battery, cannot be ruled out either.

How can you tell that the 98820-6UH0C is defective?

A defect shows up at the airbag warning light in the instrument cluster. Error messages may also appear, the diagnostic tool may have no connection to the control unit, or the fault memory cannot be cleared. In that case, airbags and seatbelt pretensioners may not be able to trigger in an emergency.

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

The warning light is a clear request to have the system checked. Do not leave the warning unattended, because it concerns the safety of all occupants.

Which vehicles is the 98820-6UH0C fitted in?

These vehicles carry the 98820-6UH0C on board: Nissan Qashqai J12 (2021-2024) and J12 Facelift (from 2024).

The individual vehicles are listed here.

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

Compare the part number on the label of the removed unit with this page. This only confirms the identity of the unit. Have the fault memory read out beforehand, because it shows whether the control unit is defective or a wire or a plug is the cause.

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 98820-6UH0C work?

First have the fault memory read out and enclose the log, then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the well-packed unit in. Airbag24 inspects and repairs the unit, erases the crash data and carries out a function test.

The sequence protects you: as long as the fault memory is not secured and the battery is not disconnected, the unit stays in the vehicle.

At Airbag24, processing (inspection, repair and test) usually takes 3–4 working days. After that, the unit goes back 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 98820-6UH0C get to Airbag24?

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

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