Airbag control unit with part number 98820-5AE0B

What does the airbag control unit 98820-5AE0B do?

The airbag control unit 98820-5AE0B is the central control unit of the restraint system (SRS) for Nissan. It evaluates the sensor signals, decides in an accident within milliseconds about airbags and seatbelt pretensioners, and monitors the system continuously. Faults are indicated via the airbag warning light.

The ongoing monitoring covers all components that belong to the restraint system. A detected fault is stored in the memory.

After an accident, the unit stores crash data and locks itself. This state is among the most important points in the repair.

Why does the control unit 98820-5AE0B fail?

The most common cause is stored crash data, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Other causes at a glance:

• Aged electronic components
• Cold solder joints
• Moisture and corrosion at plug connections
• Voltage spikes, for example from a weak battery or jump-starting

Crash data remains in the unit until it is removed during the repair.

How can you tell that the 98820-5AE0B is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, an error message appears, the diagnostic tool gets no connection to the control unit, and the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then not trigger in an emergency.

Signs to look for at a glance:

• Airbag warning light that stays on permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool without connection to the control unit
• Fault memory that cannot be cleared

The warning light shows the detected fault and stays visible until it is clarified.

Which vehicles is the 98820-5AE0B fitted in?

The airbag control unit 98820-5AE0B is fitted in these vehicles: Nissan Murano Z52 (2015-2024). The list shows the models in which this unit is known.

You will find the vehicles with this control unit in the overview below.

• Nissan Murano Z52 (2015-2024)

Compare the part number on the label of the removed unit with this page. This only ensures that it is the right unit. Have the fault memory read out beforehand, because only 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 629198200, 988205AA0A.

How does the repair of the 98820-5AE0B work?

First have the fault memory read out and attach the log, then disconnect the battery and only then remove the control unit. Then create the repair order online and send the packed unit in. Testing, repair and the function test at Airbag24 usually take 3–4 working days.

Airbag24 tests the unit on the test bench and repairs defective components. The stored crash data is erased during this process, followed by a function test. Afterwards your own unit is returned 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 98820-5AE0B get to Airbag24?

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

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