Airbag control unit with part number 98820-5XB0A

What does the airbag control unit 98820-5XB0A do?

The airbag control unit 98820-5XB0A controls the restraint system (SRS) at Nissan. It receives signals from the impact sensors, determines in a crash which airbags and seatbelt pretensioners are triggered, and monitors the other components. Faults are passed on via the airbag warning light.

After an accident the unit creates crash data and locks itself. The lock remains until the repair.

You barely notice the control unit in everyday life as long as everything works without faults.

Why does the control unit 98820-5XB0A fail?

Crash data is the most common cause, even if no airbag was triggered in the accident. It cannot be erased with an ordinary diagnostic tool. In addition there are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes such as those from a weak battery or a jump start.

Ageing and corrosion attack the contacts gradually. A voltage spike, by contrast, acts in an instant and can leave a fault that then persists.

The control unit itself keeps the crash data, so resetting it via the diagnostic tool is not enough.

How can you tell that the 98820-5XB0A is defective?

This is how you recognise a defect: the airbag warning light in the instrument cluster stays on constantly or now and then, a fault appears in the instrument cluster, the diagnostic tool cannot reach the control unit, and the fault memory cannot be emptied. In an emergency this may mean that airbags or seatbelt pretensioners fail to trigger.

The first look goes to the warning light, because it reliably reports faults in the restraint system. Even if the light only comes on now and then, it is no trivial matter.

A message that reappears after switching off the ignition suggests that the fault is stored in the unit or in its wiring.

Which vehicles is the 98820-5XB0A fitted in?

The 98820-5XB0A is fitted in these vehicles: Nissan Frontier D23 (2015-2020); Nissan Navara D23 (2015-2020).

The vehicles for which this control unit is recorded with us are shown in the following overview.

• Nissan Frontier D23 (2015-2020)
• Nissan Navara D23 (2015-2020)

Comparing the part number on the label of the removed unit with this page ensures that you have the right unit. Whether it is actually defective is shown only by a fault memory read out beforehand, because it tells the control unit apart from a connector or a cable as the cause.

For the same vehicles, we also repair control units with the part numbers 0 285 015 304, 28556-8Z325, 285569Z510, 28556EA10A, 98820 6KB0A, 98820 EB01D.

How does the repair of the 98820-5XB0A work?

First have the fault memory read out, enclose the log, and then disconnect the battery before you remove the control unit. Then create the repair order online and send the unit in well packed; at Airbag24 processing usually takes 3–4 working days.

Airbag24 checks the control unit on the test bench, replaces defective components, erases the crash data and carries out a function test. Afterwards 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 98820-5XB0A get to Airbag24?

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

Pack the control unit so that it is shock-resistant and enclose the printed repair order.