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

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

The airbag control unit GN15-14B321-CH controls the restraint system (SRS) in Ford vehicles. From the signals of the crash sensors, it decides within milliseconds which airbags and seatbelt pretensioners are triggered, and it reports faults via the airbag warning light. After an accident, it stores crash data and locks itself.

Between events, the unit keeps working unobtrusively and checks the connected components. As a driver, you see nothing of this in everyday use as long as no fault is present.

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

The most common cause is the crash data stored after an accident, even if no airbag was triggered. Aged components, cold solder joints, moisture and corrosion, and voltage spikes are also possible.

This crash data cannot be deleted with an ordinary diagnostic tool. Airbag24 carries out the deletion as part of the repair.

Moisture and corrosion mainly affect the connectors. A weak battery or a jump start can generate voltage spikes that stress the electronics.

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

Typical signs are an airbag warning light that stays on permanently or intermittently, an error message in the instrument cluster, and a fault memory that cannot be cleared.

• Airbag warning light stays on permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool gets no connection to the control unit
• Fault memory cannot be cleared

With signs like these, airbags and seatbelt pretensioners may under some circumstances fail to trigger in an emergency.

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

The control unit GN15-14B321-CH is fitted in these vehicles: Ford EcoSport 2 Facelift (2015-2022). You can check whether your vehicle is included using the vehicle registration document.

You will find the list of vehicles here:

• Ford EcoSport 2 Facelift (2015-2022)

Compare the part number on the label of the removed unit with this page, so that you can be sure you have the correct unit. Also have the fault memory read out. Only this log 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 DN1T-14B321-EC, GN15-14B321-AF, GN15-14B321-GJ, GN1Z-14B321-AE, GN1Z-14B321-AK.

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

Have the fault memory read out and attach the log. Then disconnect the battery, and only then remove the control unit. Next, create a repair order online and pack the unit well before sending it. Airbag24 checks it, repairs defective components, deletes the crash data and carries out a function test.

Processing at Airbag24 usually takes 3–4 working days. Your own unit is then returned.

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-CH get to Airbag24?

Either you send the unit to Airbag24 as a parcel, or you book a UPS collection for an extra charge. After the repair, UPS brings the unit back to you from Airbag24.

A printed repair order goes into the parcel, and the control unit is packed shock-proof.