Airbag control unit with part number 98820-9ME0A

What does the airbag control unit 98820-9ME0A do?

The airbag control unit 98820-9ME0A is the central control unit for the restraint system (SRS) of Nissan. It reads the signals from the crash sensors and, in the event of an accident, determines within milliseconds which airbags and seatbelt pretensioners are triggered. In addition, it carries out continuous monitoring, and faults are indicated via the airbag warning light.

The monitoring runs in the background while the vehicle is being driven. In doing so, the connected components are checked and irregularities are recorded in the fault memory.

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

Why does the control unit 98820-9ME0A fail?

The most common cause is stored crash data, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Other possible causes are ageing components, cold solder joints, moisture at plug connections and voltage spikes.

Other causes at a glance:

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

The crash data remains stored in the unit, because a normal diagnostic tool does not erase it.

How can you tell that the 98820-9ME0A is defective?

The airbag warning light in the instrument cluster stays on constantly or intermittently, and an error message appears. The diagnostic tool cannot establish a connection with the control unit, or the fault memory cannot be cleared. In an emergency, the airbags and seatbelt pretensioners could then possibly fail to trigger.

The warning light is the vehicle's direct indication of a fault in the restraint system. A plug or a cable can also lie behind it, which is why only the fault memory clarifies the cause.

Which vehicles is the 98820-9ME0A fitted in?

This information refers to the part number and not to the make alone. The 98820-9ME0A is fitted in these vehicles: Nissan Note E12 (2012-2016) and E12 Facelift (2016-2020).

The vehicles in detail:

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

Compare the part number on the label of the removed unit with this page so that you know you have the right unit. The comparison says nothing about the condition of the unit. Have the fault memory read out before removal, because only the log shows whether the control unit 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 98820-5WK0A, 988203VS0B.

How does the repair of the 98820-9ME0A work?

First have the fault memory read out and enclose the log with the unit. Then disconnect the battery and remove the control unit. Next, create a repair order online and send the unit off, well packed.

Airbag24 checks the unit on the test bench, replaces defective components, clears the stored crash data and carries out a function test before the unit is returned to you.

Checking, repairing and testing at Airbag24 usually take 3–4 working days.

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 98820-9ME0A get to Airbag24?

You send the unit as a parcel or, for an extra charge, book a UPS collection. After the repair, Airbag24 sends the repaired unit back to you by UPS.

The printed repair order belongs in the parcel, and the unit must be packed securely against impact.