LAMBORGHINI HURACAN PERFORMANTE Engine Control Unit+Key

In 2026, the Engine Control Unit (ECU) and Key Set for the Lamborghini Huracán Performante is one of the most protected “Security” components of the vehicle. These parts are digitally “married” to the vehicle’s VIN and the Immobilizer system (BCM – Body Control Module).

1. Technical Identification

• ECU Part Numbers: The Huracán uses a dual-ECU setup (Master and Slave) for its V10 engine. For the Performante, these usually start with 4T0907552 (Master) and 4T0907553 (Slave), followed by a specific software version suffix.

• Key/Remote: Part number 4T0837220 (with various frequency suffixes for USA/EU).

• Software: The Performante ECU contains the specific mapping for the $640\text{ CV}$ engine and the logic for the ALA (Active Aero) system.

3. The “Anti-Theft” Challenge (2026 Realities)

• Component Protection: Lamborghini (Audi-VW group) uses Component Protection. If you plug a used ECU into your car, the engine will likely not start, or it will be restricted to “Emergency Mode.”

• VIN Pairing: To make a used set work, the ECUs must be “virginized” or the security data must be cloned from your original ECU. In 2026, only a few specialized high-end tuners have the tools (like AutoTuner or bFlash) to perform this on the locked Bosch MED17.1.1 controllers used in the Huracán.

• Master/Slave Sync: If you replace only one ECU, the car will not run. The Master and Slave ECUs must have identical software versions and be synced to the same immobilizer ID.

4. Replacement Scenarios

• Scenario A: Keys are Lost: You do not need a new ECU. A dealer can order a pre-cut key based on your VIN and program it to your existing ECU via a secure connection to the factory in Italy.

• Scenario B: ECU is Water Damaged/Fried: You will need a new ECU. It is best to buy a “New” unit and have a dealer perform the initial coding, as they can “sync” it to the existing keys and BCM instantly.

• Scenario C: Engine Swap: If you are putting a Performante engine into a different car, you must have the full security set: Master ECU, Slave ECU, BCM, and the Key. Without the BCM and Key, the engine will never fire.

5. Important Checklist

• Battery Voltage: Never attempt to “pair” or “re-learn” ECUs if the battery is weak. A voltage drop during the coding process can “brick” the ECU permanently.

• Immobilizer Pins: If buying used, ensure the seller provides the Security PIN or the VIN of the donor car; without it, many locksmiths and even some dealers will refuse to touch the hardware.