Airbag control unit with part number D2BT-14B321-GC

What does the airbag control unit D2BT-14B321-GC do?

The airbag control unit D2BT-14B321-GC is the central control unit of the restraint system (SRS) for Ford. It evaluates the signals from the crash sensors and decides within milliseconds in an accident which airbags and seatbelt pretensioners are triggered. It shows faults in the system via the airbag warning light.

The unit operates continuously and monitors the wiring, the sensors and the firing circuits. You do not need to do anything for this; the monitoring runs in the background.

After an accident, it stores crash data and locks itself. The lock is only lifted by the repair.

Why does the control unit D2BT-14B321-GC fail?

The most common cause with the D2BT-14B321-GC is stored crash data after an accident, even if no airbag was triggered. Other causes are aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes from a weak battery or a jump start.

Crash data stays in the unit, because a normal diagnostic tool cannot erase it. Airbag24 removes it during the repair, and you do not need to do anything beforehand.

Aged electronics do not fail noticeably at first, cold solder joints arise from manufacturing or stress, and moisture attacks plug connections. Which of these causes is actually present only becomes clear during the inspection.

How can you tell that the D2BT-14B321-GC is defective?

A defect on the D2BT-14B321-GC shows up as the airbag warning light in the instrument cluster, which lights up permanently or intermittently. Further signs are a fault message in the instrument cluster, a missing connection to the diagnostic tool, and a fault memory that cannot be cleared.

• airbag warning light in the instrument cluster lights up permanently or intermittently
• fault message in the instrument cluster
• diagnostic tool receives no connection to the control unit
• fault memory cannot be cleared

In this case, the airbags and seatbelt pretensioners may fail to trigger in an emergency. Please take the warning signal seriously.

Which vehicles is the D2BT-14B321-GC fitted in?

The D2BT-14B321-GC is fitted in these vehicles: Ford Fiesta 7 ’09 (2008-2017).

The list below shows which vehicles belong to this unit.

• Ford Fiesta 7 ’09 (2008-2017)

Compare the number on the label of the removed unit with D2BT-14B321-GC on this page. This only confirms that it is the right unit. Before that, have the fault memory read out. Only this log 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 C1BT-14B321-CF, H1BT-14B321-AH, H1BT-14B321-AJ.

How does the repair of the D2BT-14B321-GC work?

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

Airbag24 checks it on the test bench, repairs defective components, erases the stored crash data and carries out a function test. Processing usually takes 3–4 working days. The unit is then 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 D2BT-14B321-GC get to Airbag24?

You send in the control unit D2BT-14B321-GC as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

The printed repair order goes into the parcel, and you pack the unit shockproof.