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

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

The airbag control unit DT1T-14B321-DE is the central control unit of the restraint system for Ford. It processes the signals from the crash sensors, decides in an accident within milliseconds whether airbags and seatbelt pretensioners are triggered, and monitors the entire system.

It shows detected 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-DE fail?

The most common cause is stored crash data that arises after an accident, even if no airbag was triggered. Aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes are also possible.

Crash data cannot be erased with a normal diagnostic tool. Airbag24 removes it during the repair.

The other causes mainly concern ageing of components and environmental influences. Solder joints can lose contact, and plug connections corrode.

Voltage spikes, for example from a weak battery or jump-starting, additionally stress the electronics.

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

The airbag warning light in the instrument cluster stays on permanently or intermittently. In addition, an error message appears in the instrument cluster, the diagnostic tool does not connect to the control unit, and the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may then not trigger.

Have the vehicle checked promptly.

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

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

The vehicles recorded for this part number are listed here.

• Ford Transit 7 ’14 (from 2014)

(a) Compare the part number on the label of the removed unit with this page. That only shows you have the right unit. (b) Have the fault memory read out before removal. Only the log 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-DE work?

First have the fault memory read out and attach the log, then disconnect the battery and only then remove the control unit DT1T-14B321-DE. Then create a repair order online and pack the unit well for sending. Testing, repair and the function test at Airbag24 usually take 3–4 working days.

The sequence must be followed for safety reasons.

Airbag24 tests the unit on the test bench, replaces defective components, erases crash data and carries out a function test. After that, 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 DT1T-14B321-DE get to Airbag24?

You send the control unit DT1T-14B321-DE to Airbag24 as a parcel or book a UPS collection for an extra charge. The return after the repair is made by UPS.

Shock-proof packed, with the printed repair order in the parcel, the unit is well prepared.