Airbag control unit with part number DW93-14D374-BD

What does the airbag control unit DW93-14D374-BD do?

The airbag control unit DW93-14D374-BD coordinates the restraint system (SRS) for Jaguar and responds to the crash sensors. In a crash it sends the signal within milliseconds as to which airbags and seatbelt pretensioners are triggered. It also continuously checks the function of the system and shows faults via the airbag warning light.

After an accident, it stores crash data and locks itself.

In everyday use it works unobtrusively in the background until it detects a fault.

Why does the control unit DW93-14D374-BD fail?

The most common cause with the DW93-14D374-BD is crash data stored after an accident, even without a deployed airbag. Other causes include aged components, cold solder joints, moisture and corrosion, and voltage spikes.

Crash data is created as soon as the unit registers the accident, regardless of whether the airbags deploy. A normal diagnostic tool cannot remove it. Other causes include:

• Ageing of the electronics
• Solder joints that have gone cold
• Moisture or corrosion at plug connections
• Voltage spikes, for example from a weak battery or jump-starting

How can you tell that the DW93-14D374-BD is defective?

The first sign on the DW93-14D374-BD is the airbag warning light, which stays on permanently or only intermittently. Accompanying this, a fault message appears in the instrument cluster, the diagnostic tool cannot reach the control unit, and the fault memory cannot be emptied. Airbags and seatbelt pretensioners may then fail to trigger in an emergency.

The light reports the defect even during normal driving, so it is worth having it checked without delay.

Write down the message in the instrument cluster so that the diagnostic log can assign it.

Which vehicles is the DW93-14D374-BD fitted in?

The control unit DW93-14D374-BD is fitted in these vehicles: Jaguar XJ X351 (2009-2019).

You will find an overview of the vehicles here:

• Jaguar XJ X351 (2009-2019)

Matching the part number on the label of the removed unit with this page only checks the identity. Have the fault memory read out in advance; this result shows whether the control unit is defective or whether a plug or a cable is affected.

For the same vehicles, we also repair control units with the part numbers 285010785, AW93-14D374-AD, AW93-14D374-BD, AW93-14D374-DA, AW9314D374CA, C2D5633.

How does the repair of the DW93-14D374-BD work?

First have the fault memory of the DW93-14D374-BD read out and enclose the log. Then disconnect the battery and only now remove the control unit. Next, create the repair order online and send the unit in well packed. For inspection, repair and testing, Airbag24 usually needs 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, deletes stored crash data and carries out a function test. The processing time is usually 3–4 working days.

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 DW93-14D374-BD get to Airbag24?

For the outward journey, a parcel or a UPS collection is available; the collection is booked for an extra charge. After the repair, UPS brings the control unit DW93-14D374-BD back.

Enclose the printed repair order with the parcel, and pack the unit shock-proof.