Lamborghini Huracán LP580-2 Spyder airbag control unit repair

What is an Lamborghini Huracán LP580-2 Spyder airbag control unit?

The airbag control unit is the central control unit of the restraint system (SRS) in the Lamborghini Huracán LP580-2 Spyder. It evaluates the signals from the crash sensors and decides within milliseconds in an accident which airbags and seatbelt pretensioners deploy. After an accident it stores crash data and locks itself.

The sensor signals are evaluated in a fraction of a second, before the occupants even consciously notice the impact. In that time the control unit has to judge how severe the accident is and activate the appropriate restraint systems.

In everyday use, monitoring runs in the background. At start-up the control unit performs a self-test and continuously checks all connected squib circuits and sensors. As long as everything is in order, the warning light goes out again after a short time. The control unit is fitted in the Lamborghini Huracán LP580-2 Spyder (2017 to 2020). If it detects a fault, it reports this via the airbag warning light in the instrument cluster, so you cannot miss it.

Why is the Lamborghini Huracán LP580-2 Spyder airbag control unit defective?

The most common cause is crash data stored after an accident, even if no airbag deployed. A standard diagnostic tool cannot clear it. Other causes are aged electronic components, cold solder joints, moisture and corrosion on connectors, and voltage spikes.

Voltage spikes arise, for example, from a weak battery or from jump-starting. Components that have aged over the years or solder joints that lose contact can also put the control unit out of operation. Moisture on the connectors leads to corrosion over time and thus to unreliable signals.

Typical signs are a permanently lit airbag warning light, a fault memory that cannot be cleared, or a diagnostic tool that cannot connect to the control unit. As soon as one of these signs appears, you should have the fault memory read out.

Common error codes for Lamborghini Huracán LP580-2 Spyder airbag control unit repair

Depending on the code, the error codes point to internal faults of the control unit, faults in the squib circuits, communication errors or stored crash data. They help narrow down the fault but do not replace testing the unit.

The following error codes occur in the Lamborghini Huracán LP580-2 Spyder; the list makes no claim to be complete:

• B1000 → General fault in the airbag system
• B1001 → Internal fault in the airbag control unit
• B1010 → Error in the airbag system, clarify by diagnosis
• B1100 → Error in the airbag system, clarify by diagnosis
• B1420 → Error in the airbag system, clarify by diagnosis
• B1640 → Error in the airbag system, clarify by diagnosis
• B1690 → Error in the airbag system, clarify by diagnosis
• B1790 → Error in the airbag system, clarify by diagnosis

Error codes are read out with a diagnostic tool. A code alone does not reliably show that the control unit is defective. Connectors, wiring or an airbag module can also be the cause. Only testing clarifies where the fault actually lies.

What part numbers are available for the Lamborghini Huracán LP580-2 Spyder airbag control unit repair?

The part number is printed on the label of the control unit. It determines the exact version, because within a model series there are different numbers depending on equipment and year of manufacture.

The following part numbers are known for the Lamborghini Huracán LP580-2 Spyder; the list should not be understood as complete:

• 4G0959655B

Compare the number on the label of your unit with this list. This only ensures that it is the right unit. Whether it is defective is shown only by reading out the fault memory or by testing at Airbag24.

This is how you get your unit repaired: first have the fault memory read out, then disconnect the battery. Remove the control unit, create a repair order online and send the unit in. Processing at Airbag24, including testing, repairing and checking, usually takes 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.