Airbag control unit with part number 98820-ZX20A

What does the airbag control unit 98820-ZX20A do?

As the central control unit of the restraint system (SRS), the airbag control unit 98820-ZX20A controls the airbags and seatbelt pretensioners of vehicles of the make Nissan. It processes the signals from the crash sensors and decides on triggering within milliseconds in an accident. In addition, it monitors the entire system continuously.

Faults in the system appear via the airbag warning light in the instrument cluster. After an accident the unit creates crash data and locks itself.

Why does the control unit 98820-ZX20A fail?

Crash data stored in memory after an accident is the most common cause, even when no airbag has deployed. A standard diagnostic tool cannot erase it. Aged components, cold solder joints, moisture or corrosion at plugs and voltage spikes are also possible.

For this storage it is not necessary that an airbag has deployed.

The other causes mainly concern ageing, solder joints and plug connections. Voltage spikes, for example from a jump start or a weak battery, come on top.

How can you tell that the 98820-ZX20A is defective?

The airbag warning light in the instrument cluster lights up at times or permanently, and an error message appears. The diagnostic tool then finds no connection to the control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may fail to deploy.

This combination is a clear sign of a fault in the restraint system. Anyone who sees these signs should have the fault memory read out promptly.

Only the log can clarify whether a cable or plug is affected or the unit itself.

Which vehicles is the 98820-ZX20A fitted in?

The control unit 98820-ZX20A belongs to the type of the make Nissan. It is fitted in these vehicles: Nissan Altima L32 (2006-2012).

The vehicle list at a glance:

• Nissan Altima L32 (2006-2012)

Compare the number on the label of the removed unit with this page. This only checks whether it is the right unit. Also have the fault memory read out before you continue. Only the log shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 98820-9HN0A, 98820-9HS9A, 98820-AV200, 98820-AV21A, 98820-JA100.

How does the repair of the 98820-ZX20A work?

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

At Airbag24 the unit goes to the test bench. Defective components are replaced, the stored crash data is erased and a function test is carried out at the end. Processing at Airbag24 usually takes 3–4 working days. The unit then goes back to you.

This order is mandatory for safety reasons.

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-ZX20A get to Airbag24?

You can send in the control unit 98820-ZX20A as a parcel, or UPS collects it for an extra charge. Airbag24 returns the repaired unit to you by UPS.

The printed repair order and a shock-proof protection for the unit are in the parcel.