Airbag control unit with part number ET76-14B321-AF

What does the airbag control unit ET76-14B321-AF do?

The control unit ET76-14B321-AF manages the restraint system (SRS) at Ford. From the signals of the crash sensors it calculates in milliseconds whether airbags and seatbelt pretensioners are to be triggered, and it monitors the entire system permanently. It reports faults via the airbag warning light.

The unit works constantly in the background, regardless of driving or standstill.

After an accident the unit records crash data and locks itself.

Why does the control unit ET76-14B321-AF fail?

Crash data from an earlier incident is the most common cause of failure in the ET76-14B321-AF, even if no airbag has deployed. Conventional diagnostic tools cannot erase it. Other causes include aged electronics, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Crash data is created even when the airbags remain undamaged and nothing is triggered.

The other causes concern the electronics and their surroundings. Over time components age, solder joints become brittle, and moisture attacks contacts. Weak batteries or jump-starting can cause voltage spikes. Airbag24 erases the crash data during the repair.

How can you tell that the ET76-14B321-AF is defective?

On the ET76-14B321-AF you recognise a defect by the airbag warning light in the instrument cluster, which lights up permanently or intermittently. The fault message in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be emptied confirm the picture.

With such signs the restraint system is disturbed. In an emergency, airbags and seatbelt pretensioners may therefore fail to deploy.

Which vehicles is the ET76-14B321-AF fitted in?

This control unit ET76-14B321-AF appears in these vehicles: Ford Transit Courier 1 (2014-2018) and 1 Facelift (2018-2023); Ford Tourneo Courier 1 Facelift (2018-2023) and 1 (2014-2018).

The list gives the vehicle allocation for this part number:

• Ford Transit Courier 1 (2014-2018)
• Ford Transit Courier 1 Facelift (2018-2023)
• Ford Tourneo Courier 1 Facelift (2018-2023)
• Ford Tourneo Courier 1 (2014-2018)

Comparing the label on the removed unit with this page only confirms the identity of the unit. Having the fault memory read out beforehand, on the other hand, 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 ET76-14B321-CF.

How does the repair of the ET76-14B321-AF work?

For the repair of the ET76-14B321-AF, have the fault memory read out first; the log goes with the order. Then disconnect the battery and only then remove the control unit. Online you create the repair order and send the well-packed unit. Airbag24 checks it, repairs defective components, erases the crash data and carries out a function test, which takes 3–4 working days as a rule.

The sequence serves safety during removal.

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 ET76-14B321-AF get to Airbag24?

A parcel is possible for the control unit ET76-14B321-AF, as is a booked UPS collection for an extra charge. The return after the repair is also made by UPS. Enclose the printed repair order and make sure the unit is packed shock-resistant.

A box with clearance from the walls protects the electronics from pressure and impact.