Airbag control unit with part number G2BT-14B321-HA

What does the airbag control unit G2BT-14B321-HA do?

The airbag control unit G2BT-14B321-HA coordinates the SRS restraint system in Ford vehicles. Using the crash sensors, it works out within milliseconds which airbags and seatbelt pretensioners must be triggered. It also monitors the system constantly and reports faults via the airbag warning light.

The evaluation runs in the background throughout every journey, without the driver noticing.

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

Why does the control unit G2BT-14B321-HA fail?

The most common cause is crash data that remains in the memory after an accident, even if no airbag has deployed. Other causes include aged components, cold solder joints, humidity and corrosion, and voltage spikes.

Crash data cannot be removed with a standard diagnostic tool. It remains until Airbag24 deletes it during the repair.

Aged components and cold solder joints are signs of wear in the electronics. They can trigger faults that appear to occur for no reason.

Humidity and corrosion at plug connections weaken the contact. Voltage spikes, for example from jump-starting or a weak battery, place additional strain on the circuit. Only the fault memory reveals which cause is present.

How can you tell that the G2BT-14B321-HA is defective?

You can mainly recognise a fault by the airbag warning light, which either stays on permanently or flickers at times. Further indications are messages in the instrument cluster and problems when reading out the unit. In an emergency, the airbags and seatbelt pretensioners may then fail to deploy.

The warning light in the instrument cluster is the most direct feedback from the control unit. As soon as it detects a fault, it shows this via that warning light.

If this happens, have the vehicle checked promptly rather than ignoring the warning.

Which vehicles is the G2BT-14B321-HA fitted in?

The airbag control unit G2BT-14B321-HA is fitted in these vehicles: Ford Fiesta 7 ’09 (2008-2017). Please compare the details in advance to check whether your vehicle is included. The list is only a guide.

The known vehicles for this part number are listed here:

• Ford Fiesta 7 ’09 (2008-2017)

First compare the part number on the label of the removed unit with this page. This ensures that you have the correct unit. Then have the fault memory read out, because only the result shows whether the control unit is faulty 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 G2BT-14B321-HA work?

First have the fault memory read out and keep the log ready. Then disconnect the battery and only then remove the airbag control unit G2BT-14B321-HA. Afterwards, create the repair order online and send the unit in.

Airbag24 tests the unit on the test bench, replaces faulty components, deletes the crash data and carries out a function test.

At Airbag24, processing usually takes 3–4 working days, meaning testing, repairing and function testing. Your own repaired unit is then sent back 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 G2BT-14B321-HA get to Airbag24?

You send the control unit G2BT-14B321-HA in as a parcel or book a UPS collection for an extra charge, and Airbag24 sends it back via UPS after the repair.

Pack the unit so that it is shock-resistant and enclose the printed repair order.