Airbag control unit with part number 2S6A-14B056-AA

What does the airbag control unit 2S6A-14B056-AA do?

The airbag control unit 2S6A-14B056-AA is the central switching point of the SRS restraint system in Ford. From the readings of the crash sensors, it works out in an emergency which airbags and seatbelt pretensioners respond, within a few milliseconds. In addition, it checks the system continuously and shows faults via the airbag warning light.

After an accident, the unit writes crash data to its memory and then locks itself. In normal operation you notice nothing of this, because the control works without intervention.

The control unit records detected faults in the fault memory, where workshops and diagnostic tools can retrieve them.

Why does the control unit 2S6A-14B056-AA fail?

With the 2S6A-14B056-AA, the most common cause is crash data stored after an accident, even if no airbag has deployed; an ordinary diagnostic tool cannot remove it. Other reasons are ageing electronics, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

The unit keeps these entries even when the airbags remained undamaged. Airbag24 removes them during the repair.

In addition, electronic components age over the years and solder joints can go cold. Moisture and corrosion attack the plug connectors, and voltage spikes stress the electronics.

How can you tell that the 2S6A-14B056-AA is defective?

A defect in the 2S6A-14B056-AA shows when the airbag warning light in the instrument cluster stays on permanently or intermittently and a fault message appears. In addition, no connection is established between the diagnostic tool and the control unit, and the fault memory cannot be erased. In this case, the airbags and seatbelt pretensioners may not be able to deploy in an emergency.

The following signs indicate a fault:

• Airbag warning light in the instrument cluster, permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool cannot find the control unit
• Fault memory cannot be erased

The warning light shows the defect, so take the indication seriously and have the system checked promptly.

Which vehicles is the 2S6A-14B056-AA fitted in?

This control unit 2S6A-14B056-AA is fitted in these vehicles: Ford Fiesta 6 ’02 (2001-2008).

The list shows the models to which this part number is assigned.

• Ford Fiesta 6 ’02 (2001-2008)

Compare the part number on the label of the removed unit with this page; this only confirms the right unit. Also have the fault memory read out before removal, because only the result 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 8V51-14B321-EE.

How does the repair of the 2S6A-14B056-AA work?

For the 2S6A-14B056-AA, have the fault memory read out first, enclose the log, and disconnect the battery before removing the control unit. Then create the repair order online and send the unit off well packed. At Airbag24, checking, repairing and testing usually take 3–4 working days.

On the test bench, Airbag24 checks the unit, replaces defective components, deletes the crash data and carries out a function test. Afterwards, the unit goes 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 2S6A-14B056-AA get to Airbag24?

You send the control unit 2S6A-14B056-AA as a parcel, or book a UPS collection for an extra charge. The return after the repair is made by UPS.

Include the printed repair order with the parcel, and make sure the unit is packed shock-proof.