Airbag control unit with part number GN15-14B321-BK

What does the airbag control unit GN15-14B321-BK do?

The airbag control unit GN15-14B321-BK coordinates the restraint system (SRS) in Ford. It evaluates the crash sensors, decides in an accident on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously. After an accident, it stores crash data and locks itself.

The system's fault messages run through the control unit, which passes them on to the airbag warning light in the instrument cluster.

It bases its decision in an emergency on this information.

Why does the control unit GN15-14B321-BK fail?

The most common cause is stored crash data, even if no airbag has deployed; a standard diagnostic tool cannot erase it. Other causes are ageing electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes from the battery or a jump start.

Stored crash data originates from an earlier event and remains in the unit until the repair removes it. Airbag24 erases it in the process.

The other causes are spread across the electronics. Ageing components, cold solder joints and moisture at plug connections can disrupt operation individually or together, and voltage spikes increase the risk.

How can you tell that the GN15-14B321-BK is defective?

A defect shows up at the airbag warning light in the instrument cluster, which stays on permanently or intermittently. A fault message, a lack of contact with the diagnostic tool and a fault memory that cannot be cleared may also appear. In an emergency, airbags and seatbelt pretensioners may then not be able to deploy.

The warning light is the most visible alert from the system and deserves serious attention. It shows that a fault has been detected in the restraint system.

Which vehicles is the GN15-14B321-BK fitted in?

The GN15-14B321-BK is fitted in these vehicles: Ford EcoSport 2 Facelift (2015-2022).

The following overview shows the vehicles for which this control unit is registered:

• Ford EcoSport 2 Facelift (2015-2022)

Compare the part number on the label of the removed unit with this page, so that you know you have the right unit. Also have the fault memory read out beforehand, because only this log shows whether the control unit or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers DN1T-14B321-EC, GN15-14B321-AF, GN15-14B321-GJ, GN1Z-14B321-AE, GN1Z-14B321-AK.

How does the repair of the GN15-14B321-BK work?

First read out the fault memory and enclose the log; then disconnect the battery and remove the control unit. Then create a repair order online and send the unit in, well packed. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24, the unit is checked on the test bench, defective components are replaced, the crash data is erased and a function test is carried out. The unit then 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 GN15-14B321-BK get to Airbag24?

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

The printed repair order goes into the parcel, and the unit needs shockproof packing.