Airbag control unit with part number 98820-5R30B

What does the airbag control unit 98820-5R30B do?

The airbag control unit 98820-5R30B is the central control unit of the SRS restraint system for Nissan. It constantly checks the crash sensors, the airbags and the seatbelt pretensioners, and decides on their triggering within milliseconds in an impact. It reports faults via the airbag warning light.

After an accident it stores crash data and locks itself.

The evaluation runs entirely inside the control unit, whose task is therefore closely linked to the safety of the occupants.

Why does the control unit 98820-5R30B fail?

The most common cause is crash data that remains in the memory after an accident, even if no airbag has triggered; a normal diagnostic tool does not remove it. Other causes lie in the unit itself or in its connection.

Further causes at a glance:

• Ageing of the electronic components.
• Cold solder joints on the circuit board.
• Moisture and corrosion at plug connections.
• Voltage spikes from the on-board power supply, for example due to a weakened battery or jump-starting.

Stored crash data can only be removed deliberately, not in passing.

How can you tell that the 98820-5R30B is defective?

In the instrument cluster the airbag warning light lights up permanently or intermittently as soon as a fault is present. In addition there are error messages on the display, no connection to the diagnostic tool and a fault memory that cannot be cleared.

In that case airbags and seatbelt pretensioners may not trigger in an emergency. The light ensures that the fault is shown in the instrument cluster.

A read-out of the fault memory confirms the diagnosis and classifies the entry. The two steps complement each other.

Which vehicles is the 98820-5R30B fitted in?

The 98820-5R30B is found in these vehicles: Nissan Kicks P15 (2016-2020) and P15 Facelift (2020-2024).

The overview below lists the vehicles individually.

• Nissan Kicks P15 (2016-2020)
• Nissan Kicks P15 Facelift (2020-2024)

The label comparison with this page confirms that the correct unit has been removed. The fault memory read out in advance answers the question of 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 98820-5RX0B.

How does the repair of the 98820-5R30B work?

First the fault memory is read out, and the log goes with the unit; then the battery is disconnected and the unit is removed. Afterwards you create a repair order online and pack the unit carefully. Airbag24 checks and repairs the unit, deletes crash data and tests it, usually within 3–4 working days.

The check takes place on the test bench. Defective components are repaired, crash data is deleted and the function is then tested.

The unit then returns 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 98820-5R30B get to Airbag24?

Either you send the unit yourself as a parcel, or you book a UPS collection for an extra charge. The return after the repair is likewise made by UPS.

The printed repair order goes into the parcel, and the unit is packed shockproof.