Airbag control unit with part number 98820-4AS0A

What does the airbag control unit 98820-4AS0A do?

At Nissan, the airbag control unit 98820-4AS0A takes over control of the SRS restraint system. It analyses the signals of the crash sensors, determines in a crash within milliseconds which airbags and seatbelt pretensioners trigger, and monitors the system continuously. After a crash, it stores crash data and locks itself.

It shows faults via the airbag warning light in the instrument cluster.

Why does the control unit 98820-4AS0A fail?

The most common cause is crash data stored in the unit 98820-4AS0A after an accident, even without a deployed airbag; a normal diagnostic tool does not erase it. Further causes are aged electronic components, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes, for example from a weak battery or a jump start.

This entry is created regardless of whether an airbag deploys in the accident.

Over time, components age, and moisture affects the plugs. Voltage spikes additionally stress the electronics.

How can you tell that the 98820-4AS0A is defective?

The airbag warning light on the control unit 98820-4AS0A signals the defect when it stays on permanently or intermittently. In that state, the restraint system may possibly not respond as intended in an emergency.

The signs include:

• The warning light stays on permanently or intermittently.
• A fault message appears in the instrument cluster.
• The diagnostic tool gets no access to the control unit.
• The fault memory cannot be cleared.

If any of these signs appears, have the fault memory read out. A warning is also to be taken seriously even when driving behaviour is otherwise inconspicuous.

Which vehicles is the 98820-4AS0A fitted in?

The airbag control unit 98820-4AS0A is fitted in these vehicles: Nissan Juke F15 (2010-2019).

This assignment to vehicles is made via the part number:

• Nissan Juke F15 (2010-2019)

Compare the part number on the label of the removed unit with this page; this only secures that you have the correct unit. Have the fault memory read out beforehand, 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 285011034, 285012139, 285012905, 98820-4BA0A, 98820-4BA0B, 988201KV1A.

How does the repair of the 98820-4AS0A work?

First read out the fault memory and attach the log. Then disconnect the battery and only then remove the control unit 98820-4AS0A. Then create the repair order online and send in the well-packed unit.

At the test bench at Airbag24, defective components are replaced and the crash data is deleted before a function test follows. Afterwards, your own unit is returned to you.

Testing, repair and function test 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 98820-4AS0A get to Airbag24?

The control unit 98820-4AS0A goes to Airbag24 either as a parcel or with a UPS collection booked for an extra charge. After the repair, Airbag24 sends it back by UPS.

The printed repair order goes into the parcel, and the unit is packed shock-resistant.