Airbag control unit with part number 98820-1CA0E

What does the airbag control unit 98820-1CA0E do?

The airbag control unit 98820-1CA0E initiates the triggering of airbags and seatbelt pretensioners in a collision. It is the control unit of the SRS restraint system of Infiniti and polls the crash sensors continuously.

It also monitors the entire system. If it finds a fault, it reports it via the airbag warning light.

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

Why does the control unit 98820-1CA0E fail?

The most common cause is crash data from an earlier accident, even without a triggered airbag; a standard diagnostic tool cannot remove it. Added to this are aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump-starting.

An accident without an airbag trigger therefore still leaves entries in the memory.

The other causes concern the condition of the electronics and their connections. The examination of the unit shows which of them applies.

How can you tell that the 98820-1CA0E is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently; a message in the display may be added. If the diagnostic tool cannot connect to the control unit or the fault memory cannot be cleared, that is a further sign. In that state, airbags and seatbelt pretensioners may not be able to trigger in an emergency.

The light is a clear signal that must not be ignored.

Even a warning that appears only intermittently is reason enough to have the fault memory read out.

Which vehicles is the 98820-1CA0E fitted in?

Which vehicles are affected can be read from the list. The control unit 98820-1CA0E is fitted in these vehicles: Infiniti QX70 S51 Facelift (2013-2018) and S51 (2008-2013).

The list of vehicles:

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

Comparing the part number on the label of the removed unit with this page only shows whether it is the right unit. Whether the fault lies in the control unit or in a connector or cable is shown only by the fault memory read out beforehand. So have it read out before removal.

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 98820-1CA0E work?

First have the fault memory read out and add the log. Then disconnect the battery and remove the control unit afterwards. Next create a repair order online and send the unit in well packed.

At Airbag24 the unit is checked on the test bench and defective components are replaced. Processing usually takes 3–4 working days. A function test follows, and the unit goes back 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 98820-1CA0E get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. After the repair, UPS brings the unit back to you.

Put the printed repair order into the parcel and pack the control unit shock-proof.