Can a Renault scenic without tcd sensor start?

A Renault Scenic can start without a TDC (top dead center) sensor, but it may experience issues such as rough idling, misfiring, or difficulty in starting. The TDC sensor is crucial for the engine management system as it helps determine the position of the crankshaft. If the sensor is faulty or missing, the engine may run poorly or not at all, depending on the specific engine management setup. It's advisable to replace or repair the sensor for optimal engine performance.