Airbag control unit with part number 98820-1CA0C

What does the airbag control unit 98820-1CA0C do?

The airbag control unit 98820-1CA0C belongs to the SRS restraint system of Infiniti. It reads the sensor data, determines within fractions of a second in an accident which airbags and seatbelt pretensioners to trigger, and checks the system continuously. If it detects a fault, the airbag warning light comes on.

In the background, the check runs without interruption. After an accident the unit stores crash data and locks itself.

Why does the control unit 98820-1CA0C fail?

Stored crash data after an accident are the most common cause of the 98820-1CA0C, even if no airbag has deployed. Aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes from weak batteries or jump-starting are further possible causes.

A normal diagnostic tool cannot erase this data. It stays in memory until Airbag24 removes it during the repair.

Aged components and cold solder joints change the behaviour of the electronics over time. Moisture and corrosion at plug connectors also disrupt signal transmission.

How can you tell that the 98820-1CA0C is defective?

A defect in the 98820-1CA0C first shows up on the airbag warning light in the instrument cluster, which lights up permanently or intermittently. Other signs are an error message, a diagnostic tool with no connection to the control unit, and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The warning light therefore signals the fault before it becomes a problem in an accident.

Which vehicles is the 98820-1CA0C fitted in?

The 98820-1CA0C is fitted in these vehicles: Infiniti QX70 S51 Facelift (2013-2018) and S51 (2008-2013). This assignment applies to this part number.

These vehicles are recorded for this part number:

• Infiniti QX70 S51 Facelift (2013-2018)
• Infiniti QX70 S51 (2008-2013)

Compare the part number on the label of the removed unit with this page. This comparison only confirms that the correct unit is at hand. Before that, have the fault memory read out. Only this log shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 98820-3WY0A, 98820-3WY0B, 98820-3WY0C, 988201CA0A.

How does the repair of the 98820-1CA0C work?

Have the fault memory read out and enclose the log before you disconnect the battery. Then remove the 98820-1CA0C, create a repair order online and send the unit in, well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 tests the unit on the test bench, replaces defective components and erases the stored crash data. A functional test follows, and your own unit is returned 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 98820-1CA0C get to Airbag24?

You send the 98820-1CA0C in a parcel or book a UPS collection for an extra charge. Airbag24 returns the unit to you after the repair via UPS.

Put the printed repair order into the parcel and pad the unit well.