Airbag control unit with part number EB3T-14B321-BF

What does the airbag control unit EB3T-14B321-BF do?

The airbag control unit EB3T-14B321-BF controls the restraint system (SRS) for Ford. It reads the crash sensors, determines within milliseconds in the event of an accident which airbags and seatbelt pretensioners to trigger, and checks the system constantly. After an accident it stores crash data and locks itself.

The sensor data converge in the unit and are evaluated without delay. If a check turns out negative, the control unit switches on the airbag warning light in the instrument cluster.

The electronics in the unit must therefore work reliably at all times, otherwise the evaluation would not be dependable.

Why does the control unit EB3T-14B321-BF fail?

A stored crash data record is the most common cause, even if no airbag was triggered. Other possible causes include aged components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes. During the repair of the EB3T-14B321-BF Airbag24 erases the crash data.

A normal diagnostic tool cannot erase the crash data, so they remain stored in the control unit until the repair.

Voltage spikes occur, for example, with a weak battery or when starting with a jump start. Cold solder joints and corrosion on connectors lead to intermittent faults that are hard to pin down.

How can you tell that the EB3T-14B321-BF is defective?

A first sign is the airbag warning light in the instrument cluster, which lights up permanently or intermittently. It may be accompanied by an error message in the instrument cluster, and the diagnostic tool cannot connect to the EB3T-14B321-BF. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

Typical signs at a glance:

• Airbag warning light lit permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool cannot connect to the control unit
• Fault memory cannot be cleared

If you notice any of these signs, have the system checked promptly. The light indicates the fault, so you should not ignore it.

Which vehicles is the EB3T-14B321-BF fitted in?

The EB3T-14B321-BF is fitted in these vehicles: Ford Ranger 3 (2011-2015), 3 1st Facelift (2016-2019) and 3 2nd Facelift (2019-2023).

The vehicles with this control unit follow, line by line:

• Ford Ranger 3 (2011-2015)
• Ford Ranger 3 1st Facelift (2016-2019)
• Ford Ranger 3 2nd Facelift (2019-2023)

Before removal please carry out two separate checks. If the part number on the label of the removed unit matches this page, it is the correct unit. Whether the unit is actually defective or a connector or cable is the cause only becomes clear from the fault memory read out beforehand.

For the same vehicles, we also repair control units with the part numbers AB3914B321CF, KB3T-14B321-BD.

How does the repair of the EB3T-14B321-BF work?

First have the fault memory of the EB3T-14B321-BF read out and attach the log, only then disconnect the battery and remove the control unit. Then create a repair order online and send the unit in well packed. Processing at Airbag24, i.e. checking, repairing and testing, usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, erases the crash data and carries out a function test. Afterwards you receive your own unit back.

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 EB3T-14B321-BF get to Airbag24?

You send the EB3T-14B321-BF to Airbag24 as a parcel, or book a UPS collection for an extra charge. The return after repair is made by UPS.

Enclose the printed repair order with the parcel, and pack the unit shock-resistant.