Airbag control unit with part number 98820-1EA1A

What does the airbag control unit 98820-1EA1A do?

For Nissan, the airbag control unit 98820-1EA1A forms the central control unit of the restraint system (SRS). It evaluates the signals from the crash sensors and, in a crash, decides within milliseconds which airbags and seatbelt pretensioners are triggered. At the same time it monitors the system continuously.

If the unit detects a fault, it shows it via the airbag warning light in the instrument cluster. Monitoring runs in the background while the vehicle is on the road.

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

Why does the control unit 98820-1EA1A fail?

Most often the cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Ageing components, cold solder joints, moisture and corrosion, as well as voltage spikes, also come into consideration.

Crash data therefore does not arise only where an airbag has deployed. Even an impact without deployment can leave traces in the memory.

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

Which cause is actually present is shown only by reading out the fault memory.

How can you tell that the 98820-1EA1A is defective?

The airbag warning light in the instrument cluster lights up constantly or intermittently. In addition there is a fault message in the instrument cluster, no connection between the diagnostic tool and the control unit, and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not be able to trigger.

If the light is on, have the system checked promptly.

Whether the control unit itself is affected or the wiring is shown only by the diagnosis.

Which vehicles is the 98820-1EA1A fitted in?

The 98820-1EA1A is fitted in these vehicles: Nissan 370Z Z34 Facelift (2013-2020) and Z34 (2008-2013).

The following vehicles are stored for this part number:

• Nissan 370Z Z34 Facelift (2013-2020)
• Nissan 370Z Z34 (2008-2013)

First compare the part number on the label of the removed unit with this page. That only confirms that it is the right unit. Also have the fault memory read out before you remove the unit; only that result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 25348 1A33B, 98820 1EJ1A, 98820-1EA0A, 98820-1ER0A, K8820-1EA0A, K8820-1EJ0A.

How does the repair of the 98820-1EA1A work?

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

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. The repaired unit then goes back to you.

Processing at Airbag24 usually takes 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 98820-1EA1A get to Airbag24?

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

Pack the unit shockproof and put the printed repair order into the parcel.