Airbag control unit with part number 98820-6CA0A

What does the airbag control unit 98820-6CA0A do?

The airbag control unit 98820-6CA0A is the central control unit of the restraint system (SRS) of Nissan. It evaluates the signals from the crash sensors and, in an emergency, decides within milliseconds which airbags and seatbelt pretensioners are triggered.

The unit monitors the system continuously. It shows any fault it detects via the airbag warning light in the instrument cluster.

After an accident it stores crash data and locks itself. The lock is only lifted by the repair.

Why does the control unit 98820-6CA0A fail?

Crash data stored after an accident is the most common cause for the 98820-6CA0A, even if no airbag was triggered. Other causes include ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

A normal diagnostic tool cannot remove crash data. Airbag24 clears it during the repair.

Voltage spikes arise, for example, from a weak battery or a jump start. Moisture and corrosion gradually affect plug connections.

How can you tell that the 98820-6CA0A is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. In addition, a fault message appears in the instrument cluster, and the fault memory cannot be cleared.

Furthermore, the diagnostic tool has no connection to the control unit. In this condition airbags and seatbelt pretensioners may possibly not deploy in an emergency.

• Airbag warning light in the instrument cluster lights up permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool finds no connection to the control unit
• Fault memory cannot be cleared

Which vehicles is the 98820-6CA0A fitted in?

The control unit 98820-6CA0A is fitted in these vehicles: Nissan Altima L34 (2018-2022).

The following list shows the vehicles for which this unit is registered.

• Nissan Altima L34 (2018-2022)

Comparing the part number on the label of the removed unit with this page only confirms that it is the right unit. Reading out the fault memory, by contrast, 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 98820-3TA9C, 98820-9HS9A, 98820-9HS9B.

How does the repair of the 98820-6CA0A work?

First have the fault memory read out and attach the log. Then disconnect the battery and only afterwards remove the control unit. Next, create a repair order online and send in the well-packed unit.

Airbag24 checks the unit on the test bench, replaces defective components, clears the crash data and carries out a function test. Checking, repair and function testing at Airbag24 take 3–4 working days. The unit then 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 98820-6CA0A get to Airbag24?

You send the control unit 98820-6CA0A as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 sends it back to you by UPS.

Put the printed repair order into the parcel. Pack the unit shock-proof.