Airbag control unit with part number 98820 JF50A

What does the airbag control unit 98820 JF50A do?

The airbag control unit 98820 JF50A is the component in the SRS restraint system of Nissan that evaluates the signals from the crash sensors. In an accident it decides within milliseconds which airbags and seatbelt pretensioners are triggered. It monitors the system continuously and, after an accident, stores crash data before locking itself.

The unit indicates faults via the airbag warning light in the instrument cluster. There you can see whether the restraint system is ready.

Seatbelt pretensioners and airbags depend on this one control unit, which is why it is central to safety in the vehicle.

Why does the control unit 98820 JF50A fail?

The most common cause with the 98820 JF50A is crash data stored after an accident, even if no airbag was triggered. Aged components, moisture and corrosion at plug connections, and voltage spikes are also involved.

A normal diagnostic tool cannot erase the crash data. At Airbag24 they are erased as part of the repair.

Further causes in general are:

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

How can you tell that the 98820 JF50A is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently on the 98820 JF50A. An error message in the instrument cluster, a missing connection of the diagnostic tool, or a fault memory that cannot be cleared also indicate a defect.

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

In an emergency, airbags and seatbelt pretensioners may not deploy. The warning light indicates the defect, so you should act promptly.

Which vehicles is the 98820 JF50A fitted in?

The 98820 JF50A is fitted in these vehicles: Nissan GT-R R35 (2007-2025).

The vehicles recorded for this part number:

• Nissan GT-R R35 (2007-2025)

Two checks help before removal. Comparing the part number on the label of the removed unit with this page only confirms the right unit. Whether the control unit is defective or a plug or cable is the cause is shown only by the fault memory read out beforehand.

For the same vehicles, we also repair control units with the part numbers 98820-6AV0A, 98820JF43B, 98820JF70A.

How does the repair of the 98820 JF50A work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only afterwards remove the control unit. Next, create a repair order online for the 98820 JF50A and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. After that you receive your own 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 JF50A get to Airbag24?

You send the control unit 98820 JF50A 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 unit shockproof.