Airbag control unit with part number 98820-1JA0A

What does the airbag control unit 98820-1JA0A do?

The airbag control unit 98820-1JA0A controls the restraint system (SRS) in Nissan vehicles. It receives the values from the crash sensors, decides within milliseconds in an accident on the triggering of the airbags and seatbelt pretensioners, and locks itself afterwards.

Because it monitors the system permanently, it notices faults immediately and reports them via the airbag warning light in the instrument cluster.

Why does the control unit 98820-1JA0A fail?

The most common cause for the control unit 98820-1JA0A is crash data stored after an accident, even if no airbag has fired. A normal diagnostic tool cannot erase it; Airbag24 erases it during the repair. Other causes are aged components, cold solder joints, moisture at plug connections and voltage spikes.

In addition, failures can occur due to aged electronic components and cold solder joints. Moisture and corrosion at plug connections also belong to this.

Voltage spikes, for example from a weak battery or from starting with jump leads, can also affect the electronics. Such causes develop slowly.

How can you tell that the 98820-1JA0A is defective?

A defect in the 98820-1JA0A is shown by the airbag warning light in the instrument cluster, which lights up permanently or intermittently. An error message in the instrument cluster, a lack of contact with the diagnostic tool or a fault memory that cannot be cleared also count among the signs.

The warning light is the clearest indication the vehicle gives. In an emergency, airbags and seatbelt pretensioners may not trigger with such a defect.

Without a connection to the diagnostic tool, the condition of the system remains hidden, which is why a check is important.

Which vehicles is the 98820-1JA0A fitted in?

The control unit 98820-1JA0A is fitted in these vehicles: Nissan Quest E52 (2011-2017).

The list shows the assignment in detail:

• Nissan Quest E52 (2011-2017)

A comparison of the number on the label of the removed unit with this page only shows that it is the correct unit. The fault memory must also be read out, because only that 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 98820-3WS0A.

How does the repair of the 98820-1JA0A work?

First have the fault memory read out and attach the log. Only then disconnect the battery and remove the control unit 98820-1JA0A.

Then create a repair order online and pack the unit well. Airbag24 checks it on the test bench, replaces defective components, erases stored crash data and carries out a function test. Afterwards, your own unit goes back.

Airbag24 generally needs 3–4 working days for this work. The period applies only to the work at Airbag24.

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 98820-1JA0A get to Airbag24?

You send the control unit 98820-1JA0A as a parcel or book a UPS collection for an extra charge. After the repair, your own unit also comes back to you by UPS.

Put the printed repair order into the parcel and pad the unit so that it is shock-proof.