I have stuck Renault Captur 1.2T EDC that is showing fault codes, it was driving but would go into limp mode as soon as one accerlates. And if you step on the accelerator, it would then jerk. It's currently with another local mechanic and it seems like he's struggling to get it going again after taking it apart. The gearbox was leaking fluid. He stripped it, and found a broken seal which was replaced along with a clutch pressure fork.