Airbag control unit with part number GX53-14D374-AC

What does the airbag control unit GX53-14D374-AC do?

The control unit GX53-14D374-AC is the computer of the restraint system (SRS) in Jaguar. From the signals of the crash sensors it calculates, in an accident and within milliseconds, which airbags and seatbelt pretensioners respond. While driving, it monitors the system and indicates faults via the airbag warning light.

Part of the work consists of monitoring lines and triggers. The unit also keeps faults in the fault memory.

After an accident it stores crash data and locks itself.

Why does the control unit GX53-14D374-AC fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Airbag24 erases this data during the repair, as a normal diagnostic tool does not remove it. Added to this are aged components, moisture at plug connections and voltage spikes.

Crash data arises from the registered event, not from an airbag deploying.

Aged electronic components and cold solder joints impair function over time.

Moisture and corrosion at plug connections, as well as voltage spikes, for example from a weak battery or a jump start, round off the picture.

How can you tell that the GX53-14D374-AC is defective?

The airbag warning light lights up permanently or intermittently, and an error message appears in the instrument cluster. The diagnostic tool cannot reach the control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then possibly not deploy.

Typical signs are:

• warning light permanently on or active intermittently
• error message in the instrument cluster
• no connection for the diagnostic tool
• fault memory cannot be cleared

The light is the most important signal. Anyone who ignores it loses the clearest indication.

Which vehicles is the GX53-14D374-AC fitted in?

The control unit GX53-14D374-AC is fitted in these vehicles: Jaguar F-Type X152 Facelift (2019-2024) and X152 (2013-2019). Check the vehicle papers to see whether your car is affected.

The list follows directly:

• Jaguar F-Type X152 Facelift (2019-2024)
• Jaguar F-Type X152 (2013-2019)

Comparing the part number on the label of the removed unit confirms only that it is the correct unit. The fault memory must be read out beforehand, as only this 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 EX53-14D374-AD, EX53-14D374-AE, JX53-14D374-AB.

How does the repair of the GX53-14D374-AC work?

First have the fault memory read out and enclose the log, then disconnect the battery and only then remove the control unit. Next, create a repair order online and send in the unit well packed. Airbag24 checks it on the test bench, replaces defective components, erases the stored crash data and carries out a function test.

Processing at Airbag24 usually takes 3–4 working days. The time specified refers 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 GX53-14D374-AC get to Airbag24?

You can choose the route to Airbag24: either you send a parcel, or you book a UPS collection for an extra charge. After the repair, the unit comes back to you by UPS. Do not forget the printed repair order in the parcel.

You pack the unit shock-proof, so that jolts in transit cause no damage.