Airbag control unit with part number 98820-9MG0A

What does the airbag control unit 98820-9MG0A do?

The airbag control unit 98820-9MG0A coordinates the restraint system (SRS) for Nissan. In an accident, it evaluates the crash sensors and decides within milliseconds which airbags and seatbelt pretensioners are triggered.

It also monitors the entire system continuously. If it detects a fault, it reports this via the airbag warning light in the instrument cluster.

Once an accident has occurred, the unit stores crash data and locks itself.

Why does the control unit 98820-9MG0A fail?

Most often, the cause after an accident is crash data stored on the 98820-9MG0A, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Other causes are older electronics, cold solder joints, moisture and corrosion, and voltage spikes.

The other causes at a glance:

• aging of the electronic components
• solder joints that have gone cold
• moisture and corrosion around the plug connectors
• voltage spikes, for example from a weak battery or jump-starting

How can you tell that the 98820-9MG0A is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently; this points to a defect in the 98820-9MG0A. A fault message in the instrument cluster, no connection to the diagnostic tool, or a fault memory that cannot be erased point in the same direction.

It reports the fault directly in the vehicle.

In an emergency, airbags and seatbelt pretensioners may fail to trigger. A prompt check appointment is therefore recommended.

Which vehicles is the 98820-9MG0A fitted in?

The control unit 98820-9MG0A is fitted in these vehicles: Nissan Note E12 (2012-2016) and E12 Facelift (2016-2020). The list helps you compare it with your car.

The vehicles known to us are listed here:

• Nissan Note E12 (2012-2016)
• Nissan Note E12 Facelift (2016-2020)

Comparing the part number on the label of the removed unit with this page only confirms the identity of the unit. Have the fault memory read out beforehand, because only this result shows whether the control unit is defective or the cause lies in a plug or cable.

For the same vehicles, we also repair control units with the part numbers 98820-5WK0A, 988203VS0B.

How does the repair of the 98820-9MG0A work?

The process starts with reading out the fault memory; you attach the log. Then disconnect the battery and only then remove the control unit 98820-9MG0A. Next, create a repair order online; processing at Airbag24 usually takes 3–4 working days.

Send the unit to us well packed. Airbag24 tests it on the test bench, repairs defective components, erases stored crash data and carries out a function test. Afterwards, you receive your own unit back.

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 98820-9MG0A get to Airbag24?

Sending the unit as a parcel is possible, and so is a UPS collection for an extra charge. After the repair, Airbag24 returns the 98820-9MG0A to you by UPS.

The printed repair order goes into the parcel; the unit is packed shock-resistant.