Airbag control unit with part number 8X23-14D374-AE

What does the airbag control unit 8X23-14D374-AE do?

The 8X23-14D374-AE is the central control unit of the restraint system for Jaguar. It evaluates the crash sensors, decides in a crash whether to trigger airbags and seatbelt pretensioners, and monitors the system continuously. After an accident it stores crash data and locks itself.

The unit reports faults via the airbag warning light in the instrument cluster, so the driver notices them.

Why does the control unit 8X23-14D374-AE fail?

The most common cause on the 8X23-14D374-AE is crash data stored after an accident, even if no airbag was triggered; a normal diagnostic tool cannot delete it. Other causes include aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Stored crash data is the most common cause, because it remains in the unit once the incident has been recorded. That no airbag was triggered changes nothing about this.

Aged electronics and cold solder joints can cause contact problems, while moisture and corrosion damage the plug connections.

Voltage spikes also affect the electronics, for example with a weak battery or a jump start.

How can you tell that the 8X23-14D374-AE is defective?

The airbag warning light in the instrument cluster lights up continuously or intermittently, a fault message appears, and the diagnostic tool gets no connection to the control unit. If the fault memory cannot be cleared, this points to the same defect. In that case airbags and seatbelt pretensioners may not trigger in an emergency.

The light shows the defect and should therefore not be ignored. Anyone who drives with the warning light on relies on a restraint system whose function is not assured.

Which vehicles is the 8X23-14D374-AE fitted in?

Whether this unit fits your car is checked against the details on this page. The 8X23-14D374-AE is fitted in these vehicles: Jaguar XF X250 Facelift (2011-2015) and X250 (2008-2011).

The models are listed here:

• Jaguar XF X250 Facelift (2011-2015)
• Jaguar XF X250 (2008-2011)

Compare the part number on the label of the removed unit with this page; that only confirms the identity of the unit. 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 the cause.

For the same vehicles, we also repair control units with the part numbers 9X23-14D374-AD, CX23-14D374-AD, CX23-14D374-AE.

How does the repair of the 8X23-14D374-AE work?

First have the fault memory read out and attach the log. Then disconnect the battery and only then remove the 8X23-14D374-AE. Afterwards create a repair order online and send the well-packed unit.

Airbag24 checks the unit on the test bench, replaces defective components and deletes stored crash data. A function test follows before your own unit is returned.

Processing at Airbag24 usually takes 3–4 working days; this time applies only to checking, repairing and testing. 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 8X23-14D374-AE get to Airbag24?

You send the 8X23-14D374-AE as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 returns it by UPS.

You put the printed repair order into the parcel and pack the unit shock-proof.