Airbag control unit with part number 98820-9FW3C

What does the airbag control unit 98820-9FW3C do?

The airbag control unit 98820-9FW3C is the control unit of the restraint system (SRS) for Nissan. It evaluates the crash sensors, determines the triggering of airbags and seatbelt pretensioners within milliseconds in an accident, and stores crash data after an accident. It then locks itself.

The system is under constant control of the unit. Faults are reported to the airbag warning light in the instrument cluster.

The lock is lifted exclusively by the repair.

Why does the control unit 98820-9FW3C fail?

For the 98820-9FW3C, the most common cause is crash data stored after an accident, even if no airbag has triggered. Further causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

A normal diagnostic tool cannot erase this crash data.

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

Only the inspection clarifies which cause applies in an individual case.

How can you tell that the 98820-9FW3C is defective?

A defect in the 98820-9FW3C shows up at the airbag warning light in the instrument cluster, which stays on permanently or intermittently, and as an error message. Added to this are a diagnostic tool without connection to the control unit or a fault memory that cannot be cleared.

• Airbag warning light in the instrument cluster stays on permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool receives no connection to the control unit
• Fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may not trigger. Therefore have the indication checked promptly.

Which vehicles is the 98820-9FW3C fitted in?

The airbag control unit 98820-9FW3C is fitted in these vehicles: Nissan Titan H61 Facelift (2020-2024).

The vehicles at a glance:

• Nissan Titan H61 Facelift (2020-2024)

(a) Comparing the part number on the label of the removed unit with this page only confirms that it is the correct unit. (b) Having the fault memory read out beforehand shows whether the control unit is defective or whether 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 98820-9FW3C work?

First read out the fault memory and enclose 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.

Before sending, therefore, come reading out with the log, disconnecting the battery and removing the unit.

Work at Airbag24 usually takes 3–4 working days. The unit is then examined on the test bench, defective components are repaired, stored crash data is erased and a function test is carried out. The own unit then goes back 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 98820-9FW3C get to Airbag24?

You send the control unit 98820-9FW3C as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

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