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

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

The airbag control unit AG1Z-14B321-A forms the central control unit of the SRS system for Ford. It checks the signals from the crash sensors and decides in an accident which airbags and seatbelt pretensioners are triggered.

The evaluation happens within milliseconds. The unit also monitors the entire restraint system continuously. If it detects a fault, it displays this via the airbag warning light in the instrument cluster.

An accident leaves crash data in the control unit, after which it locks itself. The lock is lifted only by the repair.

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

The stored crash data on the AG1Z-14B321-A is the most common reason for a failure: it arises from an accident, even without a triggered airbag, and cannot be removed with a usual diagnostic tool. Added to this are aged electronics, damp or corroded plugs, cold solder joints and voltage spikes.

The unit registers an incident and then stores the measurement data. This data remains even when the vehicle is long back in everyday use.

The other causes develop more gradually. Components lose reliability over time, solder joints can become brittle, and moisture attacks the contacts. Voltage spikes arise, for example, from a weak battery or when a jump start is connected.

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

A defect in the AG1Z-14B321-A shows up through the airbag warning light in the instrument cluster, which burns constantly or intermittently. A fault message in the instrument cluster may accompany it, the diagnostic tool cannot reach the control unit, and the fault memory remains despite an attempt to erase it.

When the light is on, a fault exists in the restraint system. It is worth looking into rather than ignoring the display.

A diagnostic tool that makes no contact with the control unit points to the control unit itself or to its connection. Whether there really is a fault in the unit only the investigation shows.

While a fault persists, airbags and seatbelt pretensioners may not be able to trigger in an emergency.

Which vehicles is the AG1Z-14B321-A fitted in?

The assignment shown on this page is stored. The control unit AG1Z-14B321-A is fitted in these vehicles: Ford Taurus 6 (2010-2019).

The following list names the models stored for this part number.

• Ford Taurus 6 (2010-2019)

A comparison of the number on the label of the removed unit with this page shows whether it is the right control unit, but no more than that. The actual cause can only be clarified with the fault memory, which you have read out before removal. Only then will you know whether the control unit is defective or whether a plug or cable is causing the fault.

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

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

First have the fault memory read out and secure the log, then disconnect the battery and remove the control unit AG1Z-14B321-A last. Afterwards create the repair order online and pack the unit well before sending it in. The work at Airbag24 itself usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, erases the stored crash data and finishes with a functional test.

Only then is your own unit sent back.

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-A get to Airbag24?

The control unit AG1Z-14B321-A reaches Airbag24 as a parcel, or you book a UPS collection for an extra charge. The return shipment is by UPS.

Put the printed repair order into the parcel. Pack the unit shock-proof before it goes out.