Airbag control unit with part number 98820-9UE1B

What does the airbag control unit 98820-9UE1B do?

The unit 98820-9UE1B takes over the role of the control centre within the restraint system (SRS) of Nissan. It registers via the crash sensors what happens in an impact and, in an emergency, triggers airbags and seatbelt pretensioners where the situation requires it.

The evaluation takes place in fractions of a second, because the airbags must deploy at precisely the right moment. The unit also monitors the system continuously.

It reports faults via the airbag warning light in the instrument cluster. After an accident, it writes crash data to memory and remains locked afterwards.

Why does the control unit 98820-9UE1B fail?

The most common cause is crash data stored after an accident, even if no airbag has been triggered. A normal diagnostic tool cannot erase it. Further causes include ageing electronics, cold solder joints, moisture on connectors and voltage spikes.

This crash data is the most common cause. A normal diagnostic tool cannot delete it, and Airbag24 removes it during the repair of the 98820-9UE1B.

Other causes develop more gradually. Aged electronics, cold solder joints, moisture on the contacts and voltage spikes from a weak battery or a jump start all strain the unit. Which of these applies in an individual case only becomes clear on inspection.

How can you tell that the 98820-9UE1B is defective?

You recognise a defect by the airbag warning light, by fault messages in the instrument cluster, by a diagnostic tool with no connection, and by a fault memory that cannot be cleared.

These signs occur individually or together:

• Airbag warning light in the instrument cluster stays on permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool cannot establish a connection to the control unit
• Fault memory cannot be cleared

If you notice any of these signs, have the system examined. In an emergency, airbags and seatbelt pretensioners might then not deploy as intended.

Which vehicles is the 98820-9UE1B fitted in?

The control unit 98820-9UE1B is fitted in these vehicles: Nissan Murano Z52 (2015-2024).

The vehicles recorded for this part number are shown below.

• Nissan Murano Z52 (2015-2024)

If the part number on the label of your removed unit matches this page, you have the correct unit. This comparison says nothing more.

Have the fault memory read out beforehand. Only the log shows whether the control unit is defective or whether a connector or cable is causing the fault.

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

How does the repair of the 98820-9UE1B work?

First have the fault memory read out and attach the log. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the unit in well packed.

This sequence protects the on-board system during removal, so keep to it strictly. At Airbag24, the unit is tested on the test bench, defective components are replaced, the stored crash data is deleted and a function test is carried out. Processing usually takes 3–4 working days, after which 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 98820-9UE1B get to Airbag24?

You send the control unit 98820-9UE1B as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

The printed repair order goes into the parcel. Pack the unit shockproof so that it arrives undamaged.