Airbag control unit with part number GV4T-14B321-DE

What does the airbag control unit GV4T-14B321-DE do?

The airbag control unit GV4T-14B321-DE coordinates the restraint system (SRS) in Ford. It reads out the crash sensors, works out within milliseconds in a crash which airbags and seatbelt pretensioners are triggered, and checks the system constantly. If it detects a fault, it indicates this via the airbag warning light.

The control unit is therefore at the centre of an interplay of several sensors and triggers. All parts must work together reliably in an emergency.

After an accident the unit stores crash data and locks itself. For the repair, this storage is the first point you should be aware of.

Why does the control unit GV4T-14B321-DE fail?

Stored crash data after an accident is the most common cause, even if no airbag was triggered. A normal diagnostic tool cannot delete this data. Other triggers include ageing electronics, cold solder joints, moisture and corrosion on plugs, and voltage spikes.

The crash data remains in the unit after the accident until it is removed during a repair. A fault arising from it does not disappear simply by resetting.

The remaining causes are rather general in nature. Aged components, cold solder joints and moisture at plug connections can impair the function. Voltage spikes, for example from a weak battery or a jump start, also belong here.

How can you tell that the GV4T-14B321-DE is defective?

A defect shows itself mainly in the instrument cluster. There the airbag warning light lights up permanently or intermittently, and a fault message appears. In addition, a diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared.

The warning light may burn constantly or only come on now and then, so a fault does not always have to be visible. It is therefore worth paying attention to how it behaves when you start the engine.

In an emergency, airbags and seatbelt pretensioners may fail to trigger. You should therefore take such signs seriously.

Which vehicles is the GV4T-14B321-DE fitted in?

Whether a vehicle is suitable can be read from the part number. The control unit GV4T-14B321-DE is fitted in these vehicles: Ford Kuga 2 ’13 (2012-2016) and 2 ’13 Facelift (2016-2019).

The models in which this unit is fitted are listed in this overview:

• Ford Kuga 2 ’13 (2012-2016)
• Ford Kuga 2 ’13 Facelift (2016-2019)

Have the fault memory read out before removal, to make sure that a plug or a cable is not the problem. Afterwards, compare the part number on the removed unit with the details in this overview.

For the same vehicles, we also repair control units with the part numbers 285012044, 6E5T15607CA, 8M5T14B342AC, 9V4T-14B321-AB, CJ5T14B321AG, CV4T 14B321 CG.

How does the repair of the GV4T-14B321-DE work?

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

At Airbag24 the unit that arrives is checked, defective components are replaced and the stored crash data is removed. A functional test completes the work. Processing usually takes 3–4 working days, after which your own unit is returned.

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 GV4T-14B321-DE get to Airbag24?

For shipping, you can send the unit as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends your own unit back by UPS.

The printed repair order belongs in the parcel, and the control unit should be packed shockproof.