Sorry, this is my first time on this (very interesting!) blog. I have a really puzzling problem because I've been working on it for a week now and when the fault is sporadic it becomes difficult. In short, as I said occasionally and without any connection the car doesn't start and the motor can't be heard. In diagnosis I found the error U3006 - Power supply A module of control (in diagnosis of framework tools), but although I have checked the wiring I can find no problems. Any ideas? Thank you, Alfonso