Airbag control unit with part number 98820-4DW0A

What does the airbag control unit 98820-4DW0A do?

The airbag control unit 98820-4DW0A coordinates the restraint system (SRS) in the vehicle of the make Nissan. It checks the crash sensors constantly, determines in an accident how the airbags and seatbelt pretensioners are triggered, and displays faults via the airbag warning light.

Evaluation runs without interruption, so the unit always knows the state of the system. It processes the measured values without a break.

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

Why does the control unit 98820-4DW0A fail?

Stored crash data from an accident is the most common cause, even if no airbag has deployed. Other causes are ageing components, cold solder joints, moisture, corrosion and voltage spikes.

A standard diagnostic tool cannot delete this data. The fault therefore remains stored in the unit.

The other causes concern the electronics themselves or their connections. Voltage spikes, for example from a weak battery or jump-starting, can disrupt the function.

How can you tell that the 98820-4DW0A is defective?

A defect shows up as the airbag warning light, which lights up permanently or intermittently. Added to this are an error message in the instrument cluster, a lack of contact between the diagnostic tool and the control unit, and a fault memory that cannot be cleared.

The warning light sits in the instrument cluster and is the most direct feedback about the system for the driver. If it stays on, a check is advisable.

While the defect persists, airbags and seatbelt pretensioners may not trigger in an emergency. A defect in the control unit therefore cannot wait.

Which vehicles is the 98820-4DW0A fitted in?

The control unit 98820-4DW0A is fitted in these vehicles: Nissan Rogue T32 (2013-2020).

For orientation, here are the recorded vehicles:

• Nissan Rogue T32 (2013-2020)

Comparing the part number on the label of the removed unit with this page only shows that it is the correct unit. Whether the unit itself is defective is revealed only by the fault memory, which you have read out beforehand. A plug or a cable can be the cause just as well.

For the same vehicles, we also repair control units with the part numbers 98820-1VK0A, 98820-1VL0A, 98820-4BS0A, 98820-6RR0C, 98820-6RR0D, 98820-6RR0E.

How does the repair of the 98820-4DW0A work?

First have the fault memory read out 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.

Airbag24 checks the unit on the test bench, repairs defective components, deletes stored crash data and carries out a function test. Afterwards your own unit is sent back to you.

Checking, repairing and testing at Airbag24 usually take 3–4 working days. This time applies exclusively to the work at Airbag24.

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 98820-4DW0A get to Airbag24?

You can send the control unit 98820-4DW0A in as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

The printed repair order goes into the parcel, and the unit must be packed shock-proof.