Airbag control unit with part number DT1T-14B321-GF

What does the airbag control unit DT1T-14B321-GF do?

The airbag control unit DT1T-14B321-GF is the main control unit of the SRS for Ford. Using the crash sensors it detects an impact and decides within milliseconds whether airbags and seatbelt pretensioners are triggered.

While driving it monitors the system and reports faults via the airbag warning light in the instrument cluster.

After an accident it stores crash data and locks itself.

Why does the control unit DT1T-14B321-GF fail?

With DT1T-14B321-GF, stored crash data is the most common cause, even if no airbag was triggered. Ageing electronic components, cold solder joints, moisture and corrosion at plug connections, as well as voltage spikes, can also cause the failure.

Crash data cannot be erased with a standard diagnostic tool. During a repair Airbag24 removes it.

The other causes lie in the electronics themselves or in the power supply. A weak battery system or a jump start can generate voltage spikes, and moisture and corrosion impair the plug connections.

How can you tell that the DT1T-14B321-GF is defective?

The most important sign on the DT1T-14B321-GF is an airbag warning light that stays on permanently or intermittently. Also an error message in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not trigger.

The warning light in the instrument cluster is the first sign you notice. It shows that the system has detected a fault and must be checked.

Whether the cause lies in the control unit is clarified by reading out the fault memory. Only then can it be judged reliably how to proceed.

Which vehicles is the DT1T-14B321-GF fitted in?

The airbag control unit DT1T-14B321-GF is fitted in these Ford vehicles: Ford Transit 7 ’14 (from 2014).

An overview of the vehicles follows:

• Ford Transit 7 ’14 (from 2014)

Comparing the part number on the label with this page confirms that you have the correct unit removed. As for the cause of the failure, only the fault memory provides clarity: it 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 BK2T-14B321-BF, BK3T-14B321-AC, DT1T-14B321-DF, KT1T-14B321-KD, LK4Z-14B321-C, LK4Z-14B321-E.

How does the repair of the DT1T-14B321-GF work?

The process begins with reading out the fault memory with the log enclosed, followed by disconnecting the battery, removing the control unit DT1T-14B321-GF and creating the repair order. Processing at Airbag24 takes 3–4 working days as a rule for checking, repairing and testing.

The sequence matters for safety: the battery must be disconnected before the unit is removed. Then send the unit in well packed.

Airbag24 checks the unit on the test bench, replaces defective components when needed, erases the stored crash data and carries out a functional test.

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 DT1T-14B321-GF get to Airbag24?

With the parcel itself or a UPS collection for an extra charge, the control unit DT1T-14B321-GF reaches Airbag24. After the repair Airbag24 sends it back by UPS.

Enclose the printed repair order you have printed out, and pack the unit shockproof.