Airbag control unit with part number 98820-6CT0B

What does the airbag control unit 98820-6CT0B do?

The airbag control unit 98820-6CT0B is the central control unit of the restraint system (SRS) for Nissan. It evaluates the crash sensors and, in a crash, decides within milliseconds which airbags and seatbelt pretensioners are triggered.

The system monitors the control unit continuously. Detected faults are reported to the airbag warning light.

After a crash, it stores crash data and locks itself. Only a repair lifts this lock.

Why does the control unit 98820-6CT0B fail?

Crash data stored after an accident is most often the cause, even if no airbag has deployed. This data cannot be deleted with a normal diagnostic tool.

Airbag24 deletes the crash data during the repair.

Other causes at a glance:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump start

How can you tell that the 98820-6CT0B is defective?

A defect is recognised by the airbag warning light, which stays on permanently or intermittently, by fault messages in the instrument cluster, or by a fault memory that cannot be cleared.

• Airbag warning light in the instrument cluster
• Fault message in the instrument cluster
• Diagnostic tool does not find the control unit
• Fault memory cannot be cleared

Airbags and seatbelt pretensioners may then fail to trigger in an emergency. Therefore have the finding checked promptly.

Which vehicles is the 98820-6CT0B fitted in?

The control unit 98820-6CT0B is fitted in these vehicles: Nissan Altima L34 (2018-2022).

Here is the list of vehicles assigned to this part number:

• Nissan Altima L34 (2018-2022)

Have the fault memory read out before removal. This establishes whether the control unit itself is defective or whether a plug or cable is the cause. Afterwards, compare the part number on the label with this page.

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 98820-6CT0B work?

At Airbag24, checking, repairing and testing usually take 3–4 working days. Before that, you read out the fault memory, remove the control unit 98820-6CT0B and create the repair order online.

Enclose the read-out log with the unit and disconnect the battery before removal. Pack the device well and send it in.

At Airbag24, the unit is examined on the test bench, defective components are replaced, the crash data is deleted and a function test is carried out. Afterwards, 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 98820-6CT0B get to Airbag24?

You send the control unit 98820-6CT0B as a parcel or book a UPS collection for an extra charge. After the repair, it comes back to you by UPS.

Put the printed repair order into the parcel. Pack the unit shockproof.