Airbag control unit with part number CV4T-14B321-CF

What does the airbag control unit CV4T-14B321-CF do?

The airbag control unit CV4T-14B321-CF is the central control unit of the restraint system (SRS) in Ford. It evaluates the signals from the crash sensors and, in the event of an accident, decides within fractions of a second which airbags and seatbelt pretensioners are triggered.

Between journeys, the electronics monitor the entire system. If they detect a fault, they display it via the airbag warning light in the instrument cluster.

After an accident, the unit records crash data and locks itself. It is only released after a repair.

Why does the control unit CV4T-14B321-CF fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. A normal diagnostic tool does not erase this data. Further triggers are aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data is created by recording an accident event. No airbag needs to have deployed for this. The entries remain in memory even if the vehicle looks normal again from the outside.

The other factors are linked to ageing and the environment. Electronic components lose performance over time, solder joints can become weak and moisture attacks plug contacts. A weak battery or a jump start also generates voltage spikes that can affect the unit.

How can you tell that the CV4T-14B321-CF is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. Added to this are a fault message in the instrument cluster, no connection between the diagnostic tool and the control unit, and a fault memory that cannot be cleared.

The warning light reliably signals a problem in the restraint system. In an emergency, the airbags and seatbelt pretensioners may not be able to deploy, so prompt action is required.

If there is no connection to the diagnostic tool, that also points to a finding. A detailed examination is then the next step.

Which vehicles is the CV4T-14B321-CF fitted in?

The control unit CV4T-14B321-CF is fitted in these vehicles: Ford Kuga 2 ’13 (2012-2016) and 2 ’13 Facelift (2016-2019). The listing helps you establish the link to your own car even before removal.

Below you will find the vehicles assigned to this part number.

• Ford Kuga 2 ’13 (2012-2016)
• Ford Kuga 2 ’13 Facelift (2016-2019)

You can compare the part number on the label of the removed unit with this page. That shows that you have the correct unit, but nothing about its condition. Therefore have the fault memory read out in advance, because this result decides whether the control unit is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285012044, 6E5T15607CA, 8M5T14B342AC, 9V4T-14B321-AB, CJ5T14B321AG, CV4T 14B321 CG.

How does the repair of the CV4T-14B321-CF work?

The procedure begins with you reading out the fault memory and enclosing the log. Then disconnect the battery and remove the control unit. Processing at Airbag24 usually takes 3–4 working days.

Only then create the repair order online and send the unit in well packed. This sequence is essential for safe removal.

Airbag24 tests the unit on the test bench, replaces defective components, erases the crash data and carries out a function test. Your own unit is then 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 CV4T-14B321-CF get to Airbag24?

You either send the control unit CV4T-14B321-CF to Airbag24 as a parcel, or book a UPS collection for an extra charge. The return after the repair is made by UPS.

The printed repair order goes into the parcel, and the packaging must be shockproof.