Airbag control unit with part number 98820-9NJ0A

What does the airbag control unit 98820-9NJ0A do?

In the restraint system (SRS) of Infiniti, the control unit 98820-9NJ0A handles the evaluation. It reads the crash sensors, decides within milliseconds in an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously. It reports faults via the airbag warning light.

Monitoring runs permanently, as long as the system is powered.

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

Why does the control unit 98820-9NJ0A fail?

The most common cause of a 98820-9NJ0A failure lies in crash data stored after an accident, even if no airbag has triggered. A standard diagnostic tool cannot erase it. Other causes are aged electronics, cold solder joints, moisture, corrosion and voltage spikes.

The crash data remains in the unit until Airbag24 removes it during the repair. Apart from this, the following causes come into consideration:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump start

How can you tell that the 98820-9NJ0A is defective?

A defect shows up through the airbag warning light in the instrument cluster, which stays on permanently or intermittently. Fault messages in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be cleared are further signs.

The individual signs are:

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

In an emergency, airbags and seatbelt pretensioners may then fail to trigger. This must be taken seriously, even if the vehicle otherwise drives normally.

Which vehicles is the 98820-9NJ0A fitted in?

The control unit 98820-9NJ0A from Infiniti is fitted in these vehicles: Infiniti QX60 L50 Facelift (2015-2021).

These vehicles are assigned to this part number:

• Infiniti QX60 L50 Facelift (2015-2021)

Comparing the part number on the label with this page only confirms that the unit is the right one. Have the fault memory read out beforehand, because the log shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285012283, 98820-9NB0A.

How does the repair of the 98820-9NJ0A work?

First have the fault memory read out and put the log into the parcel. Then disconnect the battery before you remove the control unit 98820-9NJ0A. Next create the repair order online and send the unit in well packed. Processing at Airbag24 itself usually takes 3–4 working days for checking, repairing and testing.

In our workshop the unit is checked, defective components are replaced, the crash data is erased and a function test is carried out. You then receive your unit back.

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 98820-9NJ0A get to Airbag24?

You send the control unit 98820-9NJ0A as a parcel or book a UPS collection for an extra charge. After the repair, UPS returns the unit to you.

Enclose the printed repair order in the parcel and pack the unit shock-proof.