The opening control device includes a fixed support configured to be mounted on the door leaf, a handle movably mounted on the support, a mechanism for electrical and mechanical activation of an unlocking of a latch of the motor vehicle door leaf respectively for electrically and mechanically actuating the unlocking of the latch, the mechanism being mechanically coupled with the handle of the vehicle such that the application of a predefined pulling force on the handle causes the electrical or mechanical activation of the unlocking of the latch. The activation mechanism includes a first lever for electrical activation of the latch and a second lever for mechanical activation of the latch movably mounted relative to each other.