Airbag control unit with part number 98820-9BD0A

What does the airbag control unit 98820-9BD0A do?

The airbag control unit 98820-9BD0A is the central control unit of the restraint system (SRS) of Nissan. It evaluates the signals from the crash sensors, decides within milliseconds in an accident which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. It reports faults via the airbag warning light.

The indications reach the driver via the instrument cluster, where fault messages also appear. After an accident, the control unit stores crash data and locks itself.

Why does the control unit 98820-9BD0A fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered; a normal diagnostic tool cannot erase it. In addition come aged electronic components, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes, for example from a weak battery or a jump start.

Crash data contains measured values from the event and remains in the memory of the control unit. At Airbag24 it is erased as part of the repair.

Whether one of these causes applies in an individual case is shown only by the test on the test bench.

How can you tell that the 98820-9BD0A is defective?

A defect shows itself through the airbag warning light in the instrument cluster, which stays on permanently or intermittently, through a fault message in the instrument cluster, through a diagnostic tool that cannot establish a connection to the control unit, or through a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not trigger.

The warning light shows the finding as soon as the system detects it. Taking this indication seriously is therefore important.

Which vehicles is the 98820-9BD0A fitted in?

The 98820-9BD0A is fitted in these vehicles: Nissan Frontier D40 (2005-2007) and D40 Facelift (2007-2015).

The following list shows the vehicles stored for this part number.

• Nissan Frontier D40 (2005-2007)
• Nissan Frontier D40 Facelift (2007-2015)

Compare the part number on the label of the removed unit with this page. This only ensures that you have the right unit in front of you. Also have the fault memory read out beforehand, because only this result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 98820 EB01D.

How does the repair of the 98820-9BD0A work?

First have the fault memory read out and attach the log. Then disconnect the battery, and only then remove the control unit. Next you create the repair order online and pack the unit well before sending it in.

At Airbag24, the team checks the unit on the test bench, repairs defective components, erases stored crash data and completes the work with a function test. Afterwards your own unit is returned to you.

Processing at Airbag24 usually takes 3–4 working days, and this time covers only checking, repairing and testing. 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 98820-9BD0A get to Airbag24?

You send the unit in as a package or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Place the printed repair order in the package and pack the unit shockproof.