Airbag control unit with part number 98820-3NE1A

What does the airbag control unit 98820-3NE1A do?

The airbag control unit 98820-3NE1A is the central control unit of the restraint system (SRS) for Nissan. It evaluates the signals from the sensors, determines in an accident within milliseconds which airbags and seatbelt pretensioners deploy, and monitors the system continuously.

If it detects a fault, it reports this via the airbag warning light in the instrument cluster. This keeps the state of the entire restraint technology in view, including in everyday driving.

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

Why does the control unit 98820-3NE1A fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Other triggers are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data cannot be cleared with an ordinary diagnostic tool. Airbag24 removes it during the repair.

• Ageing electronic components
• Cold solder joints
• Moisture and corrosion at plug connections
• Voltage spikes, for example from a weak battery or a jump start

Which of these causes applies in an individual case only becomes clear from the evaluation of the fault memory and an examination of the electronics.

How can you tell that the 98820-3NE1A is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, an error message appears in the instrument cluster, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared.

In that case airbags and seatbelt pretensioners may not be able to deploy in an emergency. That is a good reason to take the message seriously.

Have the vehicle checked promptly, even if it otherwise seems unremarkable.

Which vehicles is the 98820-3NE1A fitted in?

The 98820-3NE1A is fitted in these vehicles: Nissan Leaf ZE0 (2010-2017).

The list shows the vehicles recorded for this part number.

• Nissan Leaf ZE0 (2010-2017)

Two things will help you. First, compare the number on the label of the removed unit with this page. This only confirms that you have the correct unit in front of you. Second, have the fault memory read out before removal, because only the log shows whether the control unit itself or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 98820-3NF0A, 98820-5SA0E, K8820-3NA0A.

How does the repair of the 98820-3NE1A work?

First have the fault memory read out and enclose the log, then disconnect the battery and only then remove the control unit. Afterwards create the repair order online and send the unit in well packed. At Airbag24, checking, repairing and the function test usually take 3–4 working days.

The sequence must be observed for safety reasons.

Airbag24 checks the unit on the test bench, replaces defective components, clears stored crash data and carries out a function test. Your own 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 98820-3NE1A get to Airbag24?

You send the control unit 98820-3NE1A in by parcel or book a UPS collection for an extra charge. After the repair Airbag24 returns it to you by UPS.

Enclose the printed repair order and pack the unit shock-resistant.