Airbag control unit with part number JK2T-14B321-CA

What does the airbag control unit JK2T-14B321-CA do?

The airbag control unit JK2T-14B321-CA is the central control unit of the restraint system (SRS) for Ford. It processes the crash sensor signals and decides in a collision within milliseconds on airbags and seatbelt pretensioners. After an accident it stores crash data and locks itself.

The unit monitors the system continuously and reports faults via the airbag warning light in the instrument cluster.

Why does the control unit JK2T-14B321-CA fail?

The JK2T-14B321-CA most often fails because of stored crash data, even when no airbag has deployed. A normal diagnostic tool cannot erase this data.

Airbag24 erases the crash data during the repair. Nothing can be changed beforehand, not even with workshop tools.

Ageing electronic components and cold solder joints on the circuit board are further causes. Both can show themselves only through intermittent dropouts.

Moisture and corrosion at plug connections belong to the causes as well, just like voltage spikes from a weak battery or a jump start.

How can you tell that the JK2T-14B321-CA is defective?

A defect in the JK2T-14B321-CA shows through the airbag warning light, which lights up or flashes. Faults in the instrument cluster and a diagnostic tool without a connection may appear alongside it. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

These signs point to a defect:

• airbag warning light on permanently or intermittently
• fault message in the instrument cluster
• connection to the control unit breaks off
• fault memory cannot be cleared

Even if the light appears only sporadically, it is worth having the fault memory read out.

Which vehicles is the JK2T-14B321-CA fitted in?

You can check whether it suits your car by the part number JK2T-14B321-CA on the label. The control unit JK2T-14B321-CA is fitted in these vehicles: Ford Transit 7 ’14 (from 2014).

We have the following vehicles on record for part number JK2T-14B321-CA:

• Ford Transit 7 ’14 (from 2014)

Have the fault memory read out before removal, so that it is clear whether the control unit itself is affected. This rules out plugs and cables. Then compare the label of the removed unit with JK2T-14B321-CA.

For the same vehicles, we also repair control units with the part numbers BK2T-14B321-BF, BK3T-14B321-AC, DT1T-14B321-DF, KT1T-14B321-KD, LK4Z-14B321-C, LK4Z-14B321-E.

How does the repair of the JK2T-14B321-CA work?

Have the fault memory read out, enclose the log and disconnect the battery. Then remove the control unit, create the repair order online and send the unit in well packed. Airbag24 checks the unit, repairs defective components and erases the crash data.

A function test concludes the work at Airbag24. For checking, repairing and testing, 3–4 working days are usually planned.

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 JK2T-14B321-CA get to Airbag24?

You send the control unit JK2T-14B321-CA as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

Place the printed repair order in the parcel and pack the control unit shockproof.