Airbag control unit with part number 98820-1ER0A

What does the airbag control unit 98820-1ER0A do?

The airbag control unit 98820-1ER0A coordinates the SRS restraint system of Nissan. It continuously checks the sensor signals, decides in an accident within milliseconds which airbags and seatbelt pretensioners are triggered, and shows faults via the airbag warning light.

The electronics work closely with the crash sensors. The evaluation runs in the background, without you noticing anything.

If an event is detected after an accident, the unit stores crash data and then locks itself.

Why does the control unit 98820-1ER0A fail?

Most often the cause lies in crash data that remains in memory after an accident, even if no airbag has deployed; an ordinary diagnostic tool does not erase it. Ageing components, cold solder joints, moisture or corrosion at plug connectors, and voltage spikes, for example from a weak battery or jump-starting, are also causes.

Whether an airbag has deployed makes no difference to the stored data. The unit keeps it until it is removed during the repair.

The other causes arise gradually. Ageing of the electronics, corrosion and cold solder joints worsen the connections until the unit reports a fault.

How can you tell that the 98820-1ER0A is defective?

The airbag warning light in the instrument cluster stays on or flashes intermittently, a fault message appears in the instrument cluster, the diagnostic tool does not get a connection to the control unit, or the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then fail to deploy in an emergency.

Pay particular attention to the warning light, because it indicates a defect. If it does not go out after the ignition is switched on, have the system checked.

If the diagnostic tool cannot establish a connection, that is also a warning sign you should take seriously.

Which vehicles is the 98820-1ER0A fitted in?

The airbag control unit 98820-1ER0A is fitted in these vehicles: Nissan 370Z Z34 Facelift (2013-2020).

Here you can see the vehicles for which it is intended.

• Nissan 370Z Z34 Facelift (2013-2020)

Before you remove the unit, compare the part number on the label with this page. This way you can be sure it is the correct unit. It is also advisable to have the fault memory read out beforehand, because only this result 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 98820 1EJ1A, K8820-1EA0A, K8820-1EJ0A, K8820-1EJ1A, K8H20-1EA1A.

How does the repair of the 98820-1ER0A work?

First have the fault memory read out and enclose the log, then disconnect the battery. Only then remove the control unit, create a repair order online and send the unit in well packed. Airbag24 usually requires 3–4 working days for testing, repairing and checking.

At Airbag24 the unit is tested on the test bench, defective components are replaced, and stored crash data is erased. A function test follows, then your own unit is returned 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 98820-1ER0A get to Airbag24?

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

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