Airbag control unit with part number 5L84-14B321-DE

What does the airbag control unit 5L84-14B321-DE do?

The airbag control unit 5L84-14B321-DE controls the restraint system (SRS) for Ford. It checks the signals from the crash sensors, decides in an emergency whether airbags and seatbelt pretensioners are triggered, and logs faults. After an accident, it stores crash data and locks itself.

Monitoring runs continuously. If the unit detects a fault, it indicates this via the airbag warning light. The lock after an accident is only lifted by repairing the unit.

Why does the control unit 5L84-14B321-DE fail?

The most common cause in the 5L84-14B321-DE is crash data that remained stored after an accident, even if no airbag fired. A standard diagnostic tool cannot access this data. Other causes include aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes from a weak battery or jump-starting.

The crash data stays in memory until Airbag24 removes it during the repair. The other causes tend to develop gradually, and some can only be narrowed down through an inspection.

How can you tell that the 5L84-14B321-DE is defective?

A defect in the 5L84-14B321-DE shows up as an airbag warning light in the instrument cluster that stays lit permanently or intermittently, as an error message in the display, as a lack of connection to the diagnostic tool, or as a fault memory that cannot be cleared. In an emergency, the airbags and seatbelt pretensioners may then fail to trigger.

The airbag warning light comes on as soon as the system detects a deviation. It may stay on constantly or only light up now and then. A message in the display may appear alongside it. Please have the indication checked promptly.

Which vehicles is the 5L84-14B321-DE fitted in?

The airbag control unit 5L84-14B321-DE is fitted in these vehicles: Ford Escape 1 (2001-2007). The part number on the removed unit remains decisive.

Here you can see the vehicles recorded for this number:

• Ford Escape 1 (2001-2007)

Compare the part number on the label with this page to make sure you have the correct unit. Also have the fault memory read out; only the log shows whether the control unit itself is defective or whether a plug or cable is to blame.

For the same vehicles, we also repair control units with the part numbers 5L84-14B321-DC, BL8Z-14B321-C, YL8F-14B321-DG.

How does the repair of the 5L84-14B321-DE work?

First read out the fault memory and enclose the log, then disconnect the battery before removing the control unit 5L84-14B321-DE. Next, create the repair order online and send in the unit. At Airbag24, inspection, repair and testing follow; these usually take 3–4 working days.

The sequence is fixed for safety reasons. After testing, your own unit is 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 5L84-14B321-DE get to Airbag24?

You send the control unit 5L84-14B321-DE as a parcel or book a UPS collection for an extra charge. Airbag24 returns it to you by UPS after the repair.

Enclose the printed repair order with the parcel and pack the control unit shock-resistant.