Airbag control unit with part number 6L24-14B321-GA

What does the airbag control unit 6L24-14B321-GA do?

The airbag control unit 6L24-14B321-GA is the central control unit of the SRS restraint system in Ford. It processes the signals from the crash sensors, decides within milliseconds in a collision whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

A fault is reported via the airbag warning light. After an accident the unit creates crash data and locks itself.

The components work closely together: the sensors supply the measurements, the control unit evaluates them, and the firing circuits of the airbags and seatbelt pretensioners are controlled through this.

Why does the control unit 6L24-14B321-GA fail?

The most common cause on the 6L24-14B321-GA is crash data from an earlier accident, even if no airbag was triggered; they cannot be erased with a normal diagnostic tool. Other causes are aged components, cold solder joints, moisture and voltage spikes.

Other causes at a glance:

• electronic components that weaken over the years
• solder joints that have gone cold
• corrosion and moisture in the plugs
• voltage spikes, for example after jump-starting or with a weak battery

How can you tell that the 6L24-14B321-GA is defective?

A defect in the 6L24-14B321-GA shows up first as the airbag warning light in the instrument cluster. In addition there are error messages, a lack of contact with the diagnostic tool and a fault memory that cannot be cleared; then the airbags and seatbelt pretensioners may not deploy in an emergency.

The airbag warning light in the instrument cluster is the most important signal the system gives. It can stay on permanently or only flash intermittently, and in both cases the unit is reporting a finding.

In addition, an error message may appear in the instrument cluster. If the diagnostic tool cannot connect to the control unit, or the fault memory cannot be erased, a check is advisable.

Which vehicles is the 6L24-14B321-GA fitted in?

The control unit 6L24-14B321-GA is fitted in these vehicles: Ford Explorer 4 U251 (2006-2010). The assignment is based on the details for this unit.

Here is the overview of the vehicles:

• Ford Explorer 4 U251 (2006-2010)

Comparing the part number on the label of the removed unit with this page only confirms that it is the correct unit. Have the fault memory read out beforehand, because only that shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 6L24-14B321-AF, 6L24-14B321-CB, 7L24-14B321-AD, 7L24-14B321-CA, 7L24-14B321-DA, 9L24-14B321-DB.

How does the repair of the 6L24-14B321-GA work?

First read out the fault memory and enclose the log. Then disconnect the battery and only then remove the control unit 6L24-14B321-GA. Processing at Airbag24 usually takes 3–4 working days.

This sequence is mandatory for safety reasons and must not be changed.

Then create the repair order online and send in the well-packed unit. Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test before the unit goes back to you. This time applies only to the work at Airbag24.

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 6L24-14B321-GA get to Airbag24?

You send the control unit 6L24-14B321-GA as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 sends it back to you by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof.