Airbag control unit with part number 985102245R

What does the airbag control unit 985102245R do?

The airbag control unit 985102245R manages the restraint system (SRS) in the Renault vehicle. It measures impact signals through sensors, decides within milliseconds in a crash whether airbags and seatbelt pretensioners are triggered, and keeps the system under control.

Faults appear via the airbag warning light in the instrument cluster. After a crash, the control unit stores crash data and locks itself.

The self-check runs in the background, without you noticing it.

Why does the control unit 985102245R fail?

The most common cause of failure is stored crash data left behind by a collision, even when no airbags have deployed. A standard diagnostic tool cannot delete them. Other possible causes include ageing electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump-starting.

The data is created regardless of whether an airbag has fired.

Ageing and moisture change contacts over time, so signals are transmitted less reliably.

How can you tell that the 985102245R is defective?

A defect in the 985102245R shows up as an airbag warning light that lights up intermittently or permanently, as fault messages in the instrument cluster, as a diagnostic tool that cannot make contact, and as a fault memory that cannot be cleared.

In this condition, airbags and seatbelt pretensioners may not deploy in an emergency.

These signs deserve attention, even if the vehicle seems normal in everyday use.

Which vehicles is the 985102245R fitted in?

The assignment of this part number to vehicles is known. The control unit 985102245R is fitted in these vehicles: Renault Kadjar I (2015-2022).

The known models are listed in this overview:

• Renault Kadjar I (2015-2022)

Comparing the label number with this page only confirms that it is the correct unit. Before you plan the removal, have the fault memory read out: the result decides whether a defective control unit or a plug or cable is responsible.

For the same vehicles, we also repair control units with the part numbers 632199700, 632199700C, 985100781R, 985102271R, 985104870R, 985108564R.

How does the repair of the 985102245R work?

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

Airbag24 tests the control unit on the test bench, replaces defective components and deletes the stored crash data. A functional test follows before 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 985102245R get to Airbag24?

The route to Airbag24 is by parcel; alternatively, you can book a UPS collection for an extra charge. The return after the repair is by UPS.

Enclose the printed repair order with the parcel. Pack the unit shockproof, so it arrives undamaged.