Airbag control unit with part number 28556-5RB0A

What does the airbag control unit 28556-5RB0A do?

The airbag control unit 28556-5RB0A controls the restraint system (SRS) of Nissan as a central unit. It checks the crash sensors, decides in an accident within milliseconds whether to trigger the airbags and seatbelt pretensioners, and monitors the system permanently.

If it detects a fault, it reports it via the airbag warning light in the instrument cluster.

After an accident, it stores crash data and locks itself.

Why does the control unit 28556-5RB0A fail?

The most common cause is crash data stored in the unit after an accident, even if no airbag has deployed. Other causes are aged electronic components, cold solder joints, moisture at plug connections and voltage spikes.

A normal diagnostic tool cannot erase crash data. Airbag24 erases it during the repair.

Aged components and cold solder joints, like moisture at plug connections, can throw a unit out of step. Voltage spikes, for example from a weak battery or a jump start, are also possible triggers. Which cause applies only becomes clear through the examination.

How can you tell that the 28556-5RB0A is defective?

The airbag warning light in the instrument cluster lights up constantly or intermittently. In addition, the instrument cluster shows a fault message, the diagnostic tool gets no connection to the control unit, and the fault memory cannot be cleared.

This display is the indication to watch, because it shows that the restraint technology is disturbed. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

Please have the fault examined promptly.

Which vehicles is the 28556-5RB0A fitted in?

The control unit 28556-5RB0A is fitted in these vehicles: Nissan Kicks P15 (2016-2020) and P15 Facelift (2020-2024).

The vehicles recorded for this unit are listed below.

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

Compare the part number on the label of the removed unit with this page; that only confirms it is the right unit. Also have the fault memory read out beforehand, because the result shows whether the control unit itself is defective or whether a plug or cable is the cause.

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

How does the repair of the 28556-5RB0A work?

Have the fault memory read out, enclose the log and disconnect the battery. Only then remove the control unit, create a repair order online and send the unit in well packed. Processing at Airbag24 takes 3–4 working days in general.

Safety requires this order. Once the unit has arrived at Airbag24, it is examined on the test bench and defective components are repaired.

Then a function test follows, the stored crash data is erased, and your own unit goes 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 28556-5RB0A get to Airbag24?

You send the control unit 28556-5RB0A as a parcel or book a UPS collection for an extra charge. The return after the repair is made by UPS.

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