Airbag control unit with part number 98820-5AC0B

What does the airbag control unit 98820-5AC0B do?

The airbag control unit 98820-5AC0B controls the restraint system for Nissan. It processes the signals from the crash sensors, decides within milliseconds in an accident whether airbags and seatbelt pretensioners fire, and monitors the system continuously.

The control unit shows faults via the airbag warning light in the instrument cluster.

After an accident, the unit stores crash data and then locks itself.

Why does the control unit 98820-5AC0B fail?

On the 98820-5AC0B, the most common cause is crash data stored after an accident, even when no airbag has triggered. Further causes are aged electronic components, cold solder joints, moisture and corrosion, and voltage spikes.

The other causes in detail:

• aged electronic components in the unit
• cold solder joints on the circuit board
• moisture and corrosion on the connectors
• voltage spikes, for example from a weak battery or a jump-start

Crash data cannot be erased with a normal diagnostic tool, so it remains in the unit.

How can you tell that the 98820-5AC0B is defective?

A fault on the 98820-5AC0B shows itself when the airbag warning light in the instrument cluster lights up permanently or intermittently, a fault message appears, the diagnostic tool cannot reach the unit, or the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then fail to trigger. Take the warning seriously.

Whether the restraint system is working only becomes clear through a test, even if day-to-day driving seems unremarkable.

Which vehicles is the 98820-5AC0B fitted in?

The 98820-5AC0B is fitted in these vehicles: Nissan Murano Z52 (2015-2024).

You will find the matching models in the following overview.

• Nissan Murano Z52 (2015-2024)

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

For the same vehicles, we also repair control units with the part numbers 629198200, 988205AA0A.

How does the repair of the 98820-5AC0B work?

For the 98820-5AC0B, have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the control unit. Airbag24 needs 3–4 working days as a rule for the processing.

Then create the repair order online and pack the unit carefully. Airbag24 tests it, replaces defective components, erases crash data and performs a function test.

Your own unit is then 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 98820-5AC0B get to Airbag24?

You send the control unit 98820-5AC0B in as a parcel or book a UPS collection for an extra charge. Returns after the repair are made by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof.