Lamborghini Urus SE airbag control unit repair

What is a Lamborghini Urus SE airbag control unit?

The Lamborghini Urus SE airbag control unit is the central control unit in the restraint system (SRS). In a collision it evaluates the data from the crash sensors and triggers the appropriate airbags and seatbelt pretensioners within milliseconds; it reports faults in the system via the airbag warning light.

What matters is its work in an emergency: in an accident the unit has only milliseconds to work out from the sensor signals which restraints must fire. In the Lamborghini Urus SE (since 2025), the airbag control unit makes this decision. Outside an emergency it constantly checks sensors, squib circuits and wiring. If it finds a fault, the airbag warning light comes on in the instrument cluster.

If the unit has registered an accident, it stores crash data and locks itself.

Why is the Lamborghini Urus SE airbag control unit defective?

Most often the cause is crash data left in memory after an accident, even if no airbag deployed; an ordinary diagnostic tool cannot remove it. Other possible causes are ageing electronic components, cold solder joints, moisture with corrosion on connectors, and voltage spikes.

A weak battery or a jump start can produce voltage spikes that damage the electronics. If moisture gets in, the contacts of the connectors corrode. Over the years, ageing components and cold solder joints also lead to intermittent faults or to failure of the unit.

Signs include an airbag warning light that stays on permanently, a fault memory that cannot be reset, or a diagnostic tool that cannot establish contact with the control unit at all. If one of these appears, having the unit tested makes sense.

Common error codes for Lamborghini Urus SE airbag control unit repair

The error codes of the Lamborghini Urus SE airbag control unit relate to different areas. They report internal faults of the unit, faults in the squib circuits, a detected accident with stored crash data, and faults at sensors.

The following codes occur in connection with this control unit:

• 01 → Internal fault in the airbag control unit
• B1139 → Fault within the SRS control unit
• B1649 → Accident detected, crash data stored
• B1650 → Accident detected, crash data stored
• 05 → Fault in the squib circuit (driver or passenger side)
• 15 → Fault at the satellite sensor

Error codes are read out with a diagnostic tool. A code alone does not necessarily mean that the control unit itself is defective, since connectors, wiring or an airbag module can also be the cause. Only testing shows which part is affected.

What part numbers are available for the Lamborghini Urus SE airbag control unit repair?

The part number is printed on the label of the control unit and defines the exact version. Depending on equipment and year of manufacture, the numbers differ even within one model series, so it is worth looking at your own unit.

Note down the number from the label of your unit and enter it when you create the repair order. Whether the unit is defective only becomes clear from reading out the fault memory or from testing.

The route to repair looks like this: first have the fault memory read out, then disconnect the battery and remove the control unit. After that, create a repair order online and send in the unit. Testing, repairing and checking at Airbag24 usually take 3–4 working days.

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.