Airbag control unit with part number AE83-14B321-AG

What does the airbag control unit AE83-14B321-AG do?

The airbag control unit AE83-14B321-AG evaluates the crash sensors in the restraint system (SRS) of Ford. In an accident it decides which airbags and seatbelt pretensioners trigger, and it monitors the system constantly. It shows detected faults via the airbag warning light.

Triggering is only useful if it happens in time, so the unit compares the measured values continuously with stored limit values.

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

Why does the control unit AE83-14B321-AG fail?

The most common cause is crash data stored in the unit, even without an airbag having deployed. These data cannot be deleted with a normal diagnostic tool. Other causes are ageing electronics, cold solder joints, moisture and voltage spikes.

Crash data remains stored after an accident, even if no airbag has deployed. Common means cannot remove it, and so the fault persists accordingly.

Further causes include:

• Components that age over the years
• Solder joints that have gone cold
• Moisture or corrosion in plug connections
• Current spikes from a weak battery or when starting with an external power source

Which of these causes is actually present is only shown by the investigation.

How can you tell that the AE83-14B321-AG is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. Fault messages in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be cleared are added to this.

The airbag warning light is the first sign that something is wrong in the restraint system. It shows the fault as soon as the control unit detects it.

In an emergency, airbags and seatbelt pretensioners may then not deploy. A prompt check of the message is therefore advisable.

Which vehicles is the AE83-14B321-AG fitted in?

The assignment applies to Ford. The control unit AE83-14B321-AG is fitted in these vehicles: Ford Fiesta 7 ’09 (2008-2017).

These vehicles are assigned:

• Ford Fiesta 7 ’09 (2008-2017)

Compare the part number on the label of the removed unit with this page first; it confirms that you have the correct unit. Before that, have the fault memory read out, because only this log shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers C1BT-14B321-CF, H1BT-14B321-AH, H1BT-14B321-AJ.

How does the repair of the AE83-14B321-AG work?

First have the fault memory read out and enclose the log. Then disconnect the battery and remove the control unit; then create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit, replaces components where necessary and deletes the crash data. A functional test follows.

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 AE83-14B321-AG get to Airbag24?

The unit reaches Airbag24 as a parcel, or you book UPS collection for an extra charge. After repair, UPS brings the unit back to you.

Pack the printed repair order into the parcel and protect the unit with shock-resistant packaging.