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

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

The airbag control unit EB3T-14B321-EF coordinates the restraint system (SRS) of Ford. It evaluates the crash sensors, determines within milliseconds in a crash which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. It reports faults via the airbag warning light.

Monitoring runs in the background for as long as the vehicle is in operation. If the unit detects a fault, it sends the message to the instrument cluster.

After a crash, the control unit stores crash data and locks itself. That makes it the component on which airbags and seatbelt pretensioners depend in an emergency.

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

The most common cause is stored crash data after a crash, even if no airbag has deployed. Airbag24 erases this data during the repair, because a normal diagnostic tool cannot erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

The crash data remains in the unit after a crash, even if airbags and seatbelt pretensioners did not trigger. The other causes concern the electronics, the plug connections and the power supply of the unit. A weak battery or a jump start with too high a voltage can also stress the electronics.

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

A defect shows up as the airbag warning light in the instrument cluster staying on permanently or intermittently, as a fault message in the instrument cluster, as a missing connection to the diagnostic tool, or as a fault memory that cannot be cleared. Airbags and seatbelt pretensioners may then fail to trigger in an emergency.

The airbag warning light in the instrument cluster is the most important signal, because it shows the defect immediately. If it stays on permanently or intermittently, have the fault memory read out. A fault message in the instrument cluster or a diagnostic tool with no connection to the control unit is also one of the signs you should watch for.

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

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

The following list shows the vehicles assigned to this part number.

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

Compare the part number on the label of the removed unit with this page, so that you can assign the right unit with certainty. Whether the control unit is defective or whether a plug or cable is the cause is shown only by 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-EF work?

First have the fault memory read out and the log attached, then disconnect the battery and only then remove the control unit. Processing at Airbag24 usually takes 3–4 working days.

Then create a repair order online and send the unit well packed. Airbag24 checks it on the test bench, repairs defective components, erases stored crash data and carries out a function test. Afterwards, your own unit comes back 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 EB3T-14B321-EF get to Airbag24?

You send the unit as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Place the printed repair order in the parcel and pack the unit to withstand impact.