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

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

The EB3T-14B321-BE is the airbag control unit in the restraint system (SRS) of Ford. It evaluates the signals from the crash sensors and decides within milliseconds whether airbags and seatbelt pretensioners are triggered. After an accident it stores crash data and locks itself.

Between events, the control unit checks the circuits of the airbags and seatbelt pretensioners. It shows any deviation via the airbag warning light in the instrument cluster.

The crash data remain in the unit after the event.

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

Most often the cause lies in crash data stored after an accident, even if no airbag was triggered; a normal diagnostic tool cannot erase them. Other causes are ageing electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes, for example from a weak battery or after a jump-start.

The memory holds the crash data, and an ordinary diagnostic tool cannot reach this entry.

Ageing components and cold solder joints count among the technical causes that can develop over time.

Moisture and corrosion attack plug connections. Voltage spikes, for example from a weak battery or a jump-start, place additional strain on the unit.

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

A defect shows up as an airbag warning light that stays on permanently or intermittently, as an error message in the instrument cluster, as a lack of connection between the diagnostic tool and the control unit, or as a fault memory that cannot be erased. In an emergency, the airbags and seatbelt pretensioners may then fail to trigger.

Pay particular attention to these signs:

• The airbag warning light stays on permanently or intermittently.
• An error message for the airbag system appears in the instrument cluster.
• The diagnostic tool makes no connection to the control unit.
• The fault memory cannot be emptied, even after an attempt to erase it.

A warning light that stays on permanently is a clear indication. Therefore have the finding checked promptly.

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

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

These models are stored with this part number:

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

Compare the number on the label of the removed unit with this page to confirm the right unit. This does not clarify whether the control unit is defective. That question is answered only by reading out the fault memory, which you have done before removal.

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-BE work?

First have the fault memory read out, enclose the log and only after disconnecting the battery remove the control unit EB3T-14B321-BE. Then create a repair order online and send in the well-packed unit; Airbag24 checks it, repairs defective components, erases crash data and carries out a function test.

The sequence is mandatory, because the battery must be disconnected before removal.

Processing at Airbag24 usually takes 3–4 working days.

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-BE get to Airbag24?

You send the control unit in as a parcel, or you book a UPS collection for an extra charge. After the repair, your own unit comes back to you by UPS.

Pack the printed repair order into the parcel and pack the control unit shock-proof.