Airbag control unit with part number 98820-5RA0B

What does the airbag control unit 98820-5RA0B do?

In Nissan vehicles, the airbag control unit 98820-5RA0B regulates the restraint system (SRS). It reads the sensors that detect crashes and determines in an accident, within milliseconds, which airbags and seatbelt pretensioners are triggered.

The unit also checks the restraint system continuously. It indicates faults via the airbag warning light and, after an accident, stores crash data and locks itself.

It works as the central switching point between sensors and triggering.

Why does the control unit 98820-5RA0B 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. Other causes are aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Voltage spikes arise, for example, from a weak battery or a jump start. A corroded plug can disrupt a connection without the control unit itself being affected.

Which cause applies in an individual case is shown by the fault memory once it has been read out.

How can you tell that the 98820-5RA0B is defective?

A defect shows up through the airbag warning light in the instrument cluster, when it stays on permanently or intermittently. Likewise, a fault message, no connection to the diagnostic tool and a fault memory that cannot be cleared point to a defect.

Typical signs are:

• Airbag warning light stays on permanently or intermittently
• Fault message in the instrument cluster
• No connection to the diagnostic tool
• Fault memory cannot be cleared

Airbags and seatbelt pretensioners may then fail to deploy in an emergency. A check is therefore advisable without delay.

Which vehicles is the 98820-5RA0B fitted in?

The 98820-5RA0B is found in these vehicles: Nissan Kicks P15 (2016-2020) and P15 Facelift (2020-2024).

You can see the breakdown here:

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

Comparing the part number on the label with this page only confirms that it is the right unit. What matters is the fault memory: it shows whether the control unit is defective or whether a connector or cable is the cause. Have it read out before removal.

For the same vehicles, we also repair control units with the part numbers 98820-5RX0B.

How does the repair of the 98820-5RA0B work?

First you have the fault memory read out and enclose the log with the unit. Then you disconnect the battery and remove the control unit. Only then do you create a repair order online and send in the well-packed unit.

Airbag24 checks the unit on the test bench and repairs defective components. A function test follows; processing usually takes 3–4 working days. Afterwards, your own unit is sent back 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 98820-5RA0B get to Airbag24?

Either the unit goes off as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Enclose the printed repair order in the parcel, and the unit must be packed shockproof.