Airbag control unit with part number 98820-9FW8B

What does the airbag control unit 98820-9FW8B do?

The airbag control unit 98820-9FW8B handles the restraint system (SRS) for Nissan. In an accident it evaluates the sensor signals within milliseconds and determines which airbags and seatbelt pretensioners are triggered.

It checks the system continuously and reports faults via the airbag warning light. This keeps the status of the system traceable at all times.

After an accident, it stores crash data and locks itself.

Why does the control unit 98820-9FW8B fail?

The most common cause is stored crash data, even if no airbag has deployed, and a standard diagnostic tool does not delete it. Other causes include aged components, cold solder joints, moisture and corrosion on connectors, and voltage spikes.

• Aged electronic components lose reliability over time.
• Cold solder joints disrupt signal transmission.
• Moisture and corrosion affect connectors.
• Voltage spikes occur, for example, with a weak battery or jump-starting.

Crash data remains in memory until it is specifically removed.

How can you tell that the 98820-9FW8B is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently. Accompanying this, a fault message appears in the instrument cluster, the diagnostic tool has no connection to the control unit, and a fault memory that cannot be cleared.

• The airbag warning light stays on permanently or intermittently.
• A fault message appears in the instrument cluster.
• The diagnostic tool has no connection to the control unit.
• The fault memory cannot be cleared.

In that case, airbags and seatbelt pretensioners may possibly not trigger in an emergency.

An inspection of the system is advisable.

Which vehicles is the 98820-9FW8B fitted in?

The 98820-9FW8B was fitted by Nissan in the following models: Nissan Titan H61 Facelift (2020-2024).

The list of models follows below:

• Nissan Titan H61 Facelift (2020-2024)

Compare the part number on the label of the removed unit with this page, and you will know that it is the correct unit. Have the fault memory read out beforehand, so that it becomes clear whether the control unit itself is defective or a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285013989, 98820-EZ20B, 98820-EZ29B.

How does the repair of the 98820-9FW8B work?

First have the fault memory read out and enclose the log. Then disconnect the battery and remove the control unit before creating the repair order online. Processing at Airbag24 usually takes 3–4 working days.

Send the unit in well packed. Airbag24 checks it on the test bench, replaces defective components, deletes the stored crash data and runs a function test.

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 98820-9FW8B get to Airbag24?

The unit is sent as a parcel that you post yourself, or with a UPS collection that you book for an extra charge. UPS takes care of the return.

The printed repair order is enclosed in the parcel. The unit must be packed shock-resistant so that it stays protected in transit.