Airbag control unit with part number 9L84-14B321-AL

What does the airbag control unit 9L84-14B321-AL do?

Within the system of Ford, the airbag control unit 9L84-14B321-AL controls the airbags and seatbelt pretensioners. It reads the signals from the crash sensors, determines in an accident within a few milliseconds which restraint elements are to be triggered, and checks the entire system in the background.

It reports faults via the airbag warning light. This light is located in the instrument cluster and shows that something in the system is not right.

After an accident, it stores crash data and locks itself.

Why does the control unit 9L84-14B321-AL fail?

In 9L84-14B321-AL, the most common cause is a crash data entry after an accident, even if no airbag was triggered. A normal diagnostic tool cannot remove this entry. Other causes play a role as well, which can be briefly summarised.

The other causes at a glance:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or jump-starting

Airbag24 erases the crash data during the repair. We check the remaining points on the unit itself before we return it.

How can you tell that the 9L84-14B321-AL is defective?

A defect in the 9L84-14B321-AL 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 9L84-14B321-AL fitted in?

The 9L84-14B321-AL is fitted in these vehicles: Ford Escape 2 (2008-2012). Compare this information with your vehicle before removal.

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

• Ford Escape 2 (2008-2012)

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 8L84-14B321-AG, 8L84-14B321-AH, 8L84-14B321-AJ, 8L84-14B321-AK, 9L84-14B321-AJ, 9L84-14B321-AK.

How does the repair of the 9L84-14B321-AL work?

For the repair of the 9L84-14B321-AL, 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 9L84-14B321-AL get to Airbag24?

You send the control unit 9L84-14B321-AL 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.