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

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

The airbag control unit D2BT-14B321-GA has the task of controlling the restraint system (SRS) of Ford. In an accident, it processes the reports from the crash sensors and decides within milliseconds which airbags and seatbelt pretensioners are triggered. After an accident, it stores crash data and locks itself.

During operation, the unit monitors the entire system. It shows every fault it detects via the airbag warning light in the instrument cluster.

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

On the D2BT-14B321-GA, the most common cause is crash data stored after an accident, even if no airbag has deployed. Other causes are aged electronics, cold solder joints, moisture and corrosion on plugs, and voltage spikes.

Crash data cannot be erased with a standard diagnostic tool. Only the repair achieves that.

Some of the other causes develop gradually: electronics age, solder joints can become cold, and moisture attacks contacts. Voltage spikes arise, for example, with a weak battery or a jump-start. Which cause applies in an individual case is shown by the fault memory.

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

The airbag warning light lights up permanently or intermittently when there is a fault on the D2BT-14B321-GA. An error message appears in the instrument cluster, the diagnostic tool receives no connection, and the fault memory cannot be cleared.

When the light is on, it cannot be assured that airbags and seatbelt pretensioners will deploy in an emergency. This indication is therefore not a minor matter.

A diagnostic tool that cannot establish contact with the control unit also points to a fault. The fault memory then cannot be read out or cleared, which is why the situation must be checked.

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

The control unit D2BT-14B321-GA is in use in these vehicles: Ford Fiesta 7 ’09 (2008-2017).

The vehicles in detail:

• Ford Fiesta 7 ’09 (2008-2017)

A comparison of the part number on the label with this page confirms that you have the correct unit. The comparison does not show the cause of the defect. Therefore have the fault memory read out before removal. Only the 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 C1BT-14B321-CF, H1BT-14B321-AH, H1BT-14B321-AJ.

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

First have the fault memory read out and enclose the log, then disconnect the battery and remove the control unit D2BT-14B321-GA. Next, create a repair order online and send the unit in, well packed. At Airbag24, testing, repair and function test usually take 3–4 working days.

The sequence protects during work on the system. Only after the battery has been disconnected may the control unit be removed.

Airbag24 checks the unit on the test bench, replaces damaged parts, erases stored crash data and carries out a functional check. Afterwards, 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 D2BT-14B321-GA get to Airbag24?

You send the unit D2BT-14B321-GA to Airbag24 as a parcel or book a UPS collection for an extra charge. The return after the repair is also made by UPS.

Put the printed repair order in the parcel, and pack the control unit shock-proof.