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

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

The control unit GN15-14B321-DH decides, in the restraint system of Ford, which airbags and seatbelt pretensioners are triggered in an accident. To do so, it evaluates the signals from the crash sensors within milliseconds.

It also monitors the system continuously and reports faults via the airbag warning light in the instrument cluster.

After an accident it stores crash data and locks itself.

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

With the GN15-14B321-DH, the most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase this data. Other causes include ageing components, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes.

Crash data are stored in the unit after an accident without any visible external sign. Removing them therefore belongs to the repair and is not something you can do yourself.

Electronic components age, and solder joints can become cold over the years. Moisture gets into plug connectors and causes corrosion. Voltage spikes, for example with a weak battery or when connecting a jump start, additionally stress the electronics.

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

A defect in the GN15-14B321-DH shows when the airbag warning light in the instrument cluster lights up permanently or intermittently, a fault message appears, the diagnostic tool cannot connect to the control unit, or the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then fail to deploy in an emergency.

The warning light is the visible point where the system indicates its fault. If it lights up, have the fault clarified promptly rather than hoping for an improvement.

Even if the car runs normally in everyday use, the warning remains serious.

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

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

Here follows the list of vehicles on file for this part number.

• Ford EcoSport 2 Facelift (2015-2022)

First compare the part number on the label of the removed unit with this page; this only confirms that it is the right unit. Additionally have the fault memory read out, because only this 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 DN1T-14B321-EC, GN15-14B321-AF, GN15-14B321-GJ, GN1Z-14B321-AE, GN1Z-14B321-AK.

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

For the GN15-14B321-DH, you proceed in a fixed order: first have the fault memory read out and attach the log. Then disconnect the battery, and only after that remove the unit. Next create a repair order online and send the well-packed unit in.

Processing at Airbag24 generally takes 3–4 working days. The unit is checked on the test bench, defective components are replaced where necessary, stored crash data are erased and a function test is carried out. Afterwards your own unit is 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 GN15-14B321-DH get to Airbag24?

You send the control unit GN15-14B321-DH to Airbag24 as a parcel, or book a UPS collection for an extra charge. After the repair Airbag24 returns the unit by UPS.

Enclose the printed repair order in the parcel, and pack the unit so that it is shock-proof.