Airbag control unit with part number DB5T-14B321-AG

What does the airbag control unit DB5T-14B321-AG do?

In the restraint system (SRS) of Ford, the airbag control unit DB5T-14B321-AG works as the evaluator of the crash sensors. In an accident it determines which airbags and seatbelt pretensioners are triggered, and it checks the system continuously.

The unit detects faults in the system itself and shows them via the airbag warning light in the instrument cluster. The light is therefore an important signal about the state of the system.

After an accident, the control unit stores crash data and locks itself. The unit is released only after the repair.

Why does the control unit DB5T-14B321-AG fail?

The most common cause is stored crash data left behind after an accident, without an airbag having fired. Further causes are ageing, cold solder joints, moisture and corrosion, and voltage spikes at the DB5T-14B321-AG.

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connectors
• voltage spikes, for example with a weak battery or a jump start

You cannot remove the crash data with a normal diagnostic tool. Airbag24 deletes it during the repair.

In everyday use, ageing and moisture act over a long period, whereas voltage spikes occur suddenly.

How can you tell that the DB5T-14B321-AG is defective?

The airbag warning light in the instrument cluster lights up constantly or intermittently as soon as something is wrong with the DB5T-14B321-AG. In addition, a fault message may appear, and the diagnostic tool finds no connection to the control unit.

In an emergency, this means airbags and seatbelt pretensioners may not deploy. So take the warning seriously.

A fault memory that cannot be cleared is also a sign that the system needs to be checked.

Which vehicles is the DB5T-14B321-AG fitted in?

The DB5T-14B321-AG is fitted in these vehicles: Ford Explorer 5 (2011-2019).

The vehicle list shows the models for which this part number is stored:

• Ford Explorer 5 (2011-2019)

Comparing the part number on the label of the removed unit with this page gives you certainty that it is the correct unit. The comparison does not tell you anything about the defect. Have the fault memory read out before removal, because only the log shows whether the control unit or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers BB5T-14B321-AH, DB5T-14B321-AE, DB5T-14B321-AF, EB5T-14B321-AA, GB5T-14B321-AC, HB5T-14B321-AA.

How does the repair of the DB5T-14B321-AG work?

First have the fault memory read out, attach the log and then disconnect the battery; only then remove the DB5T-14B321-AG. Next, create the repair order online and send in the unit well packed. For testing, repair and function test, Airbag24 usually allows 3–4 working days.

First, Airbag24 checks the unit on the test bench, then defective components are repaired and crash data is deleted. Finally a function test follows, and 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 DB5T-14B321-AG get to Airbag24?

The DB5T-14B321-AG comes to Airbag24 by parcel, or you book a UPS collection for an extra charge. The unit also goes back by UPS after the repair.

Put the printed repair order in the parcel and secure the unit shock-proof.