Airbag control unit with part number 98820-7FW0A

What does the airbag control unit 98820-7FW0A do?

The airbag control unit 98820-7FW0A is the central control unit of the restraint system (SRS) of Nissan. It reads the impact signals, decides in a crash within milliseconds whether airbags and seatbelt pretensioners are triggered, and monitors the entire system. Faults are indicated by the airbag warning light.

While the vehicle is driving, the control unit runs along and checks the power supply, the firing circuits and the plug connections. It stores any deviations in the fault memory.

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

Why does the control unit 98820-7FW0A fail?

Stored crash data is the most common cause, even if no airbag has deployed, and a normal diagnostic tool cannot erase it. Ageing components, cold solder joints, moisture and corrosion, and voltage spikes are also possible causes.

After an accident, the crash data stays in the memory, and a common diagnostic tester does not remove it. Airbag24 erases it during the repair.

Ageing components and cold solder joints can disrupt operation. Moisture and corrosion at plug connections also have an effect.

Voltage spikes, for example from a weak battery or after a jump start, are also a possible cause.

How can you tell that the 98820-7FW0A is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, a fault message appears in the instrument cluster, the diagnostic tool gets no connection to the control unit, and the fault memory cannot be erased. Airbags and seatbelt pretensioners may then fail to deploy in an emergency.

The warning light is the most important warning sign in the vehicle. It shows the fault even when it lights up only intermittently, so it should be taken seriously.

A fault message and a missing connection to the diagnostic tool accompany this picture. Each of these signs is reason enough for a check.

Which vehicles is the 98820-7FW0A fitted in?

The 98820-7FW0A is fitted in these vehicles: Nissan Rogue T32 (2013-2020).

The list shows the models in which this part number is used.

• Nissan Rogue T32 (2013-2020)

Compare the part number on the label of the removed unit with this page, to be sure that it is the right unit. This does not yet clarify the cause. Have the fault memory read out beforehand. Only the result shows whether the control unit is defective or whether a plug or cable is causing the fault.

For the same vehicles, we also repair control units with the part numbers 98820 JM100, 98820-1VK0A, 98820-1VL0A, 98820-4BS0A, 98820-7FL9E, 98820-9FM0A.

How does the repair of the 98820-7FW0A work?

First have the fault memory read out and attach the log. Then disconnect the battery, remove the control unit, create a repair order online and send the unit in good packaging.

The sequence is for safety reasons. Removal only takes place once the battery has been disconnected.

Airbag24 checks the unit that has been sent in on the test bench, replaces defective components, erases stored crash data and carries out a functional test. Processing at Airbag24 usually takes 3–4 working days. Your own unit is then 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 98820-7FW0A get to Airbag24?

You send in the control unit 98820-7FW0A as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

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