Airbag control unit with part number 2S6T-14B056-BN

What does the airbag control unit 2S6T-14B056-BN do?

The airbag control unit 2S6T-14B056-BN works as the central control unit of the SRS restraint system of Ford. It evaluates the crash sensors, decides in a crash event within milliseconds whether airbags and seatbelt pretensioners are triggered, and monitors the entire system. It shows detected faults via the airbag warning light.

The crash sensors are located at various points in the vehicle and continuously supply the unit with measurement data. The control unit assesses these values before it issues a trigger command.

After an accident the unit creates crash data and locks itself. In this way the control unit also serves as documentation of the event.

Why does the control unit 2S6T-14B056-BN fail?

The most common cause is stored crash data after an accident, even when no airbag was triggered. A normal diagnostic tool cannot remove it. In addition, aged electronic components, cold solder joints, moisture and corrosion on connectors, and voltage spikes, for example from a weak battery or jump-starting, come into question.

Stored crash data is not noticeable while driving. The control unit keeps it until Airbag24 removes it during the repair.

The other causes concern the unit itself and its connections. A loose or corroded connector can cause a symptom that looks like a defective unit.

How can you tell that the 2S6T-14B056-BN is defective?

The airbag warning light in the instrument cluster lights up constantly or intermittently as soon as the system detects a fault. In addition, the instrument cluster displays an error message, while the diagnostic tool cannot establish a connection to the control unit. A fault memory that cannot be cleared also belongs to the picture. In a crash, the airbags and seatbelt pretensioners on the 2S6T-14B056-BN may possibly not trigger.

The light therefore shows exactly the state that is decisive for safety. Anyone who sees it has a clear reason to have the restraint system checked.

Which vehicles is the 2S6T-14B056-BN fitted in?

The 2S6T-14B056-BN is fitted in these vehicles: Ford Fiesta 6 ’02 (2001-2008).

The overview lists the vehicles for which this part number is on record.

• Ford Fiesta 6 ’02 (2001-2008)

Treat the comparison of the label part number as a simple check of whether the unit fits. Whether the control unit itself is causing the fault is shown only by the fault memory read out. Have it read out before removal.

For the same vehicles, we also repair control units with the part numbers 8V51-14B321-EE.

How does the repair of the 2S6T-14B056-BN work?

Have the fault memory read out, then disconnect the battery before you remove the 2S6T-14B056-BN. Next, create the repair order online and send the well-packed unit in together with the log. At Airbag24, checking, repairing and testing usually takes 3–4 working days.

Airbag24 checks the control unit on the test bench and replaces defective components. Stored crash data is erased, and a function test follows. Your own unit is then 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 2S6T-14B056-BN get to Airbag24?

You send the unit in as a parcel or book a UPS collection for an extra charge. After the repair, UPS brings the 2S6T-14B056-BN back. The printed repair order belongs in the parcel.

Protect the unit with a sturdy, shock-proof package.