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

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

The airbag control unit GN15-14B321-KC controls the restraint system (SRS) in vehicles of the make Ford. In an accident it decides which airbags and seatbelt pretensioners are triggered.

The unit evaluates the signals from the crash sensors, and it does so within a few milliseconds. During operation it monitors the entire system and reports faults via the airbag warning light.

After an accident it stores crash data and then locks itself. Without this electronics the restraint system could not react in a targeted way in an emergency. The unit therefore works in the background for as long as the vehicle is powered.

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

Most often the cause for GN15-14B321-KC is crash data stored after an accident, even if no airbag has deployed. Further causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

A normal diagnostic tool cannot access these entries, so they cannot be removed by common means. The fault memory therefore stays occupied.

The other causes can go unnoticed for a long time. A weak battery or jump-starting can produce voltage spikes that affect the electronics.

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

The airbag warning light in the instrument cluster lights up permanently or intermittently. A defect on the GN15-14B321-KC also shows itself through fault messages.

If the diagnostic tool cannot establish a connection to the control unit, or the fault memory cannot be cleared, that is a further sign. Then caution is advised: in an emergency, airbags and seatbelt pretensioners may not trigger.

The light indicates the fault and does not wait for it to be discovered by chance during an inspection.

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

This GN15-14B321-KC unit is found in these vehicles: Ford EcoSport 2 Facelift (2015-2022).

Below is the overview of the vehicles that are known to us for this part number.

• Ford EcoSport 2 Facelift (2015-2022)

The label on the removed unit gives a part number that you can compare with this page. This only tells you whether it is the correct unit. Have the fault memory read out beforehand; the log shows whether the control unit itself 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-KC work?

First read out the fault memory and enclose the log to the unit; then disconnect the battery and only then remove the control unit GN15-14B321-KC. Afterwards create a repair order online and pack the unit well before sending it in.

Airbag24 checks the unit on the test bench, replaces defective components, deletes the stored crash data and runs a function test. Processing usually takes 3–4 working days. Afterwards your own unit goes back to you.

The order is mandatory for safety reasons. 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-KC get to Airbag24?

You send your control unit GN15-14B321-KC as a parcel or book a UPS collection for an extra charge; after the repair Airbag24 returns the unit by UPS.

The printed repair order goes into the parcel with the unit, which must be packed shock-proof. Solid packaging is important, because knocks on the way can damage the unit.