Airbag control unit with part number L8A2-14D374-CE

What does the airbag control unit L8A2-14D374-CE do?

As the control unit of the restraint system (SRS) in Land Rover, the L8A2-14D374-CE evaluates the sensor signals. In an impact, it decides within milliseconds whether airbags and seatbelt pretensioners are triggered, and it monitors the system constantly.

As soon as a fault occurs, the airbag warning light indicates it, and the fault is stored in the unit's memory.

After an accident, the unit creates crash data and locks itself.

Why does the control unit L8A2-14D374-CE fail?

Most common cause with the L8A2-14D374-CE: crash data stored after an accident, even if no airbag has deployed. An ordinary diagnostic tool cannot reach them; Airbag24 deletes them during the repair. Aged components, cold solder joints and moisture at plug connections also play a role, as do voltage spikes.

The other causes in detail:

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

Which of these applies in an individual case is shown by an inspection.

How can you tell that the L8A2-14D374-CE is defective?

You can recognise a defect in the L8A2-14D374-CE by the airbag warning light in the instrument cluster. In that case, airbags and seatbelt pretensioners may not deploy in an emergency.

Typical signs include:

• The airbag warning light stays on permanently.
• The light comes on intermittently and then goes out.
• An error message appears in the instrument cluster.
• The diagnostic tool cannot reach the control unit.
• The fault memory cannot be cleared.

If you notice these signs, have the fault memory read out. The log shows which faults the system has stored.

Which vehicles is the L8A2-14D374-CE fitted in?

You will find the L8A2-14D374-CE fitted in these vehicles: Land Rover Range Rover Velar L560 (2017-2023) and L560 Facelift (from 2023).

Here is the list of vehicles:

• Land Rover Range Rover Velar L560 (2017-2023)
• Land Rover Range Rover Velar L560 Facelift (from 2023)

Compare the part number on the removed unit with this page; this only confirms that it is the right unit. Have the fault memory read out beforehand, because only then does it become clear whether the control unit itself is defective or whether a plug is the cause.

For the same vehicles, we also repair control units with the part numbers J8A2-14D374-AE, J8A2-14D374-AH, J8A2-14D374-AJ, L8A214D374CD, LR037934, LR118105.

How does the repair of the L8A2-14D374-CE work?

Have the fault memory read out, enclose the log and disconnect the battery; only then remove the L8A2-14D374-CE. Create the repair order online and pack the unit carefully. Airbag24 needs 3–4 working days in total for the inspection, the repair and the test.

On the test bench, the unit is examined, defective components are replaced, the crash data are cleared and a function test is run. After that, your own unit is returned to you.

You must carry out the first steps in exactly this order. 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 L8A2-14D374-CE get to Airbag24?

Send the L8A2-14D374-CE as a parcel, or have it collected by UPS for an extra charge. After the repair, it is returned by UPS.

The printed repair order goes into the parcel, and you pack the unit shock-proof.