Airbag control unit with part number CJ5Z-14B321-C

What does the airbag control unit CJ5Z-14B321-C do?

The CJ5Z-14B321-C is an airbag control unit and thus the switching centre of the SRS system for Ford. It reads the crash sensors, decides in an accident within milliseconds which airbags and seatbelt pretensioners are triggered, and checks the system continuously for faults.

It indicates faults via the airbag warning light in the instrument cluster. The light is therefore the most important sign that something in the system is wrong.

After an accident, the control unit stores crash data and locks itself.

Why does the control unit CJ5Z-14B321-C fail?

The most common cause of the CJ5Z-14B321-C is a crash data entry from an accident, even if no airbag was triggered. A normal diagnostic tool cannot remove it. Aged components, cold solder joints, moisture, corrosion and voltage spikes are also possible.

It is also possible for crash data to be stored after an accident without an airbag being triggered. Airbag24 erases it during the repair.

Electronic components age over time, solder joints can go cold, and moisture and corrosion attack plug connections. Voltage spikes, for example from a weak battery or jump-starting, additionally strain the control unit.

How can you tell that the CJ5Z-14B321-C is defective?

A defect in the CJ5Z-14B321-C shows up as the airbag warning light in the instrument cluster staying on permanently or intermittently. Fault messages in the instrument cluster, a diagnostic tool without a connection to the control unit, and a fault memory that cannot be cleared can also occur.

If the warning light is on, there is a possibility that airbags and seatbelt pretensioners may not trigger in an emergency. Take this warning signal seriously.

A diagnostic tool that cannot establish a connection to the control unit also indicates a fault. In that case, have the system checked.

Which vehicles is the CJ5Z-14B321-C fitted in?

The CJ5Z-14B321-C is fitted in these vehicles: Ford Escape 3 (2013-2019). Compare this information with your vehicle before removal.

The overview covers the vehicles known to us for this control unit.

• Ford Escape 3 (2013-2019)

Comparing the part number on the removed unit with this page confirms that it is the right unit. Whether the control unit is defective, or whether a plug or cable is the cause, is shown only by reading out the fault memory. Therefore have this done beforehand.

For the same vehicles, we also repair control units with the part numbers CJ5T-14B321-AF, CJ5T-14B321-AH, CJ5T-14B321-AJ, FJ5T-14B321-AA, GJ5Z-14B321-B.

How does the repair of the CJ5Z-14B321-C work?

For the repair of the CJ5Z-14B321-C, first have the fault memory read out and enclose the log. Then disconnect the battery and remove the control unit. Processing at Airbag24 usually takes 3–4 working days.

Then create a repair order online and send the well-packed unit in. The sequence serves safety and is therefore mandatory.

At Airbag24 we check the unit on the test bench, renew defective components, erase the crash data and carry 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 CJ5Z-14B321-C get to Airbag24?

You send the control unit CJ5Z-14B321-C in as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Enclose the printed repair order in the parcel. Pack the unit shock-resistant.