<p>To provide a vehicular charging and generating system (100) capable of issuing alarm to a driver even when failure is caused in a rectifying apparatus of the vehicular charging and generating system (100), failure detecting means (127) issues alarm when a difference between an output voltage of generated voltage detecting means (124) and an output voltage of average phase voltage detecting means (125) is higher than first difference voltage set when failure is not caused in a rectifying element or when the difference is lower than second difference voltage set when failure is not caused in the rectifying element. <IMAGE></p>
