Airbag control unit with part number 98820-6WK0C

What does the airbag control unit 98820-6WK0C do?

The airbag control unit 98820-6WK0C belongs to the restraint system (SRS) of Nissan. It evaluates the impact signals, determines within milliseconds which airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

If it detects a fault, it reports this via the airbag warning light in the instrument cluster.

An accident means that crash data is held in the unit and that it locks itself.

Why does the control unit 98820-6WK0C fail?

The most common cause on the 98820-6WK0C is crash data from an accident, which the unit stores even when no airbag was deployed. A standard diagnostic tool cannot erase it. Further causes are aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

The following further causes are possible:

• aged electronic components that only show faults under load
• cold solder joints on the circuit board
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or jump-starting

The remaining causes concern the condition of the electronics itself and its connections.

How can you tell that the 98820-6WK0C is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently; a fault is then present on the 98820-6WK0C. An error message appears in the instrument cluster, the diagnostic tool cannot establish a connection, and the fault memory cannot be cleared. In that case airbags and seatbelt pretensioners may not deploy in an emergency.

The warning light is the direct sign that the system has detected a fault.

If the warning light stays on permanently, have the vehicle checked promptly.

Which vehicles is the 98820-6WK0C fitted in?

The 98820-6WK0C was fitted in these vehicles: Nissan Leaf ZE1 (from 2017). It is better to clarify whether this applies to your car before you remove anything.

These vehicles are known to us with this part number:

• Nissan Leaf ZE1 (from 2017)

First compare the label of the removed unit with the part number on this page. That only establishes the identity of the unit. Also have the fault memory read out, because only the 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 98820-5SA0E, 98820-5SC0A, 98820-5SE0A, 98820-5SH0A, 98820-5SH0B, 98820-5SL0A.

How does the repair of the 98820-6WK0C work?

For the 98820-6WK0C, read out the fault memory first and enclose the log. Then disconnect the battery; only afterwards remove the control unit. Next, create a repair order online and send in the well-packed unit; processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit, repairs defective components, erases the crash data and carries out a function test. You then get your own unit back.

The 3–4 working days apply only to this 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 98820-6WK0C get to Airbag24?

Either you pack the control unit 98820-6WK0C and send it as a parcel, or you book a UPS collection for an extra charge. Airbag24 returns the unit to you by UPS after the repair.

The printed repair order goes into the parcel, and the unit is packed shock-resistant.