Airbag control unit with part number AG1Z-14B321-B

What does the airbag control unit AG1Z-14B321-B do?

The airbag control unit AG1Z-14B321-B belongs to the restraint system (SRS) of Ford. It processes the data from the crash sensors, decides within milliseconds in an impact whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously. Faults are reported to the airbag warning light.

Monitoring runs in the background, so you notice nothing of it in everyday use.

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

Why does the control unit AG1Z-14B321-B fail?

Stored crash data from an accident is the most common cause, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Ageing electronic components, dry solder joints, moisture and corrosion on plug connections, and voltage spikes also lead to failures.

Stored crash data originates from the moment of impact. It remains even if no airbag was triggered, and a normal diagnostic tool cannot reach it to erase it.

The other causes are of a more general nature. Ageing components wear out, dry solder joints can cause contact faults, and moisture affects plug connections. Voltage spikes, for example with a weak battery or jump-starting, put strain on the electronics.

How can you tell that the AG1Z-14B321-B is defective?

The airbag warning light stays on permanently or intermittently, a fault message appears in the instrument cluster, and the diagnostic tool cannot reach the control unit. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

A fault memory that cannot be cleared is also a typical sign. A fault is indicated by the light, so the system reports it itself.

If the light stays on, it makes sense to have the fault checked promptly.

In which vehicles is the AG1Z-14B321-B fitted?

The airbag control unit AG1Z-14B321-B is fitted in these vehicles: Ford Taurus 6 (2010-2019).

The list shows the vehicles that appear in our information for this part number.

• Ford Taurus 6 (2010-2019)

Compare the number on the label of the unit with this page. This ensures that you have the correct control unit in front of you, nothing more. The comparison provides no information about the condition of the unit. For that, have the fault memory read out beforehand, because it will show whether the control unit itself or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers AG13-14B321-AD, AG1Z-14B321-A, BG13-14B321-AB, DG13-14B321-AD, DG13-14B321-AF, DG13-14B321-AG.

How does the repair of the AG1Z-14B321-B work?

First have the fault memory read out and include the log. Then disconnect the battery and remove the control unit. Next, create a repair order online and send the unit off well packed.

Airbag24 tests the unit on the test bench, replaces defective components, erases the crash data and carries out a function test. The unit then comes back to you.

For testing, repairing and function testing, Airbag24 usually allows 3–4 working days.

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 AG1Z-14B321-B get to Airbag24?

Either you send the AG1Z-14B321-B to Airbag24 as a parcel, or you arrange a UPS collection for an extra charge. Airbag24 sends the unit back by UPS after the repair.

Pack the control unit so that it arrives shock-resistant, and include the repair order.