Airbag control unit with part number 98820-9KK0A

What does the airbag control unit 98820-9KK0A do?

The airbag control unit 98820-9KK0A is the central control unit of the restraint system (SRS) in Nissan. In an accident, it evaluates the signals from the crash sensors and decides within milliseconds which airbags and seatbelt pretensioners are triggered.

Outside an accident, the unit continuously monitors the entire system. If it detects a fault, it reports it via the airbag warning light in the instrument cluster, so that the driver notices the problem.

After an accident, the control unit stores crash data and locks itself.

Why does the control unit 98820-9KK0A fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

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

The other causes at a glance:

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

How can you tell that the 98820-9KK0A is defective?

A defect shows up as the airbag warning light in the instrument cluster, which lights up permanently or intermittently, under certain circumstances together with an error message. If the diagnostic tool cannot connect to the control unit, or the fault memory cannot be cleared, there is also a problem. In this state, airbags and seatbelt pretensioners may fail to trigger in an emergency.

The warning light is the most important alert your vehicle gives you. Even if the car drives normally, the message remains until the system has been checked.

Please have the message checked promptly.

Which vehicles is the 98820-9KK0A fitted in?

The control unit 98820-9KK0A is fitted in these vehicles: Nissan Almera N17 (2011-2020).

The following overview lists the vehicles for which this part number is recorded.

• Nissan Almera N17 (2011-2020)

Two steps help you classify the unit. Compare the part number on the label of the removed unit with this page, so that you are certain you have the right unit in front of you. Also have the fault memory read out beforehand, because only that shows whether the control unit itself is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 28556-9KN1B, 98820-9KA0A.

How does the repair of the 98820-9KK0A work?

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

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

At Airbag24, processing usually takes 3–4 working days. This refers solely to inspection, repair and testing on our premises.

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 98820-9KK0A get to Airbag24?

You send the control unit in as a package or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Put the printed repair order into the package and pack the unit shockproof.