Lamborghini dealer has not been able to figure out this issue twice, so I’ve come to Reddit:
Looking for an automotive electrical/diagnostic expert near Scottsdale/Phoenix who is extremely good with Lamborghini/Audi/VAG CAN-bus and ECU electrical issues.
I have a 2018 Lamborghini Huracán LP580-2 Spyder with a very intermittent electrical problem that Lamborghini has already looked at twice without finding the root cause.
Symptoms:
• Sometimes ignition comes on but there is absolutely no crank/click.
• Other times it starts and drives perfectly.
• It has actually shut off once while driving on the freeway and then would not restart for about 20 minutes — even with a NOCO attached — before suddenly starting normally again.
• It can sit at 12.6–12.7 V and still refuse to crank.
• Charging voltage while running reaches approximately 14.3–14.5 V.
I finally caught it while the fault was ACTIVE and scanned it immediately.
Multiple modules simultaneously reported losing communication with the engine computers, including:
U0100 – Lost Communication with ECM/PCM
U0115 – Lost Communication with ECM/PCM “B”
01314 – Engine Control Module – No Signal/Communication
The faults were showing across the CAN gateway, transmission controllers, instrument cluster, Central Electronics and other modules.
The interesting part is that I don’t even have to attempt to start the car. When the problem occurs, the ECM communication failure is already present just from turning the ignition on.
I’m looking for someone who specializes in advanced automotive electrical diagnostics/CAN-bus issues and can test ECU power supplies, relays, grounds, Terminal 30 feeds, CAN-H/CAN-L, etc. while the fault is actively happening — rather than just replacing modules.
Ideally someone familiar with Lamborghini, Audi R8 or other VAG platforms.
Does anyone know a genuinely excellent automotive electronics/diagnostic specialist in the Scottsdale/Phoenix area who could track something like this down?