Airbag control unit with part number 98820-5CB0A

What does the airbag control unit 98820-5CB0A do?

The airbag control unit 98820-5CB0A controls the restraint system (SRS) for Infiniti. It processes the signals from the crash sensors, determines within milliseconds in a collision which airbags and seatbelt pretensioners to trigger, and monitors the system continuously.

The control unit indicates faults via the airbag warning light. After an accident it stores crash data and locks itself.

The electronics work constantly in the background, so that triggering runs smoothly in an emergency.

Why does the control unit 98820-5CB0A fail?

The most common cause lies in crash data stored in the control unit after an accident, even if no airbag has deployed. Other causes are aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes, for example from a weak battery or a jump start.

A normal diagnostic tool cannot remove this data, so it remains in the control unit.

Aging, loosening solder joints, moisture at contacts and voltage spikes also put strain on the electronics.

How can you tell that the 98820-5CB0A is defective?

A defect on the 98820-5CB0A shows up as the airbag warning light, which lights up permanently or only from time to time, and as an error message in the instrument cluster. In addition, a diagnostic tool cannot establish a connection with the control unit, and the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then possibly not trigger in an emergency.

Such signs are messages from the system, not imagination. Overlooking the warning light would therefore be a poor idea.

A check is the right next step, even if the vehicle continues to drive normally.

Which vehicles is the 98820-5CB0A fitted in?

The 98820-5CB0A is fitted in these vehicles: Infiniti Q60 CV37 (2016-2022).

The vehicles for this part number are listed below:

• Infiniti Q60 CV37 (2016-2022)

Compare the part number on the label of the removed unit with this page. This tells you whether it is the correct unit, and nothing more. 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 involved.

For the same vehicles, we also repair control units with the part numbers 25348-5CA0B, 98820-1VZ0B.

How does the repair of the 98820-5CB0A work?

First read out the fault memory and enclose the log, then disconnect the battery and remove the control unit. Online you create the repair order, and you send in the well-packed unit. Airbag24 usually processes it within 3–4 working days: it checks the unit, replaces defective components, deletes crash data and tests the device, after which your own unit is returned.

The sequence is fixed for your safety.

The 3–4 working days refer only to the work at Airbag24, not to your steps or the shipping.

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 98820-5CB0A get to Airbag24?

You send the control unit as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 returns your own unit to you by UPS.

Enclose the printed repair order in the parcel, and pack the control unit shockproof.