Connector for motor vehicles having - a housing (2, 20) comprising at least one pawl (8, 28), said at least one pawl (8, 28) retaining a contact carrier module in the housing or retaining a contact in the housing, said at least one pawl (8, 28) being able to be displaced into a protruding position by a contact carrier module inserted into the housing or a contact inserted into the housing, - a device for detecting (3, 50) which is mobile relative to the housing (2, 20) in a closing direction between a delivery position and a use position, comprising an element for detecting (12, 52) the position of the pawl (8, 28) in which the pawl (8, 28) is flexible between • a retracted position in which the element for detecting (3, 50) does not interact with the pawl (8, 28) during a displacement of the device for detecting (3, 50) from the delivery position to the use position and • a protruding position in which the element for detecting (3, 50) interacts with the pawl (8, 28) during a displacement of the device for detecting (3, 50) from the delivery position to the use position, in which the device for detecting (3, 50) is blocked by the pawl (8, 28) in the protruding position between at least two surfaces (12a, 13, 14, 15; 61, 57) of the device for detecting (3, 50), in which the device for detecting (3, 50) blocks the pawl (8, 28) in the protruding position by said pawl being subjected to shear between a first blocking surface (12a, 61) located on the element for detecting (12, 52) and a second blocking surface (14, 57) located on the device for detecting (3, 50), laterally relative to the element for detecting (12, 52), viewed along its dimension parallel to the closing direction, characterized in that the pawl (8, 28) comprises a chamfered surface in order to interact with the element for detecting (12, 52) and a stop located laterally relative to the chamfered surface in order to interact with a zone of the device for detecting (3, 50) which is separate from the element for detecting (12, 52). - a housing (2, 20) comprising at least one pawl (8, 28), said at least one pawl (8, 28) retaining a contact carrier module in the housing or retaining a contact in the housing, said at least one pawl (8, 28) being able to be displaced into a protruding position by a contact carrier module inserted into the housing or a contact inserted into the housing, - a device for detecting (3, 50) which is mobile relative to the housing (2, 20) in a closing direction between a delivery position and a use position, comprising an element for detecting (12, 52) the position of the pawl (8, 28) in which the pawl (8, 28) is flexible between • a retracted position in which the element for detecting (3, 50) does not interact with the pawl (8, 28) during a displacement of the device for detecting (3, 50) from the delivery position to the use position and • a protruding position in which the element for detecting (3, 50) interacts with the pawl (8, 28) during a displacement of the device for detecting (3, 50) from the delivery position to the use position, in which the device for detecting (3, 50) is blocked by the pawl (8, 28) in the protruding position between at least two surfaces (12a, 13, 14, 15; 61, 57) of the device for detecting (3, 50), in which the device for detecting (3, 50) blocks the pawl (8, 28) in the protruding position by said pawl being subjected to shear between a first blocking surface (12a, 61) located on the element for detecting (12, 52) and a second blocking surface (14, 57) located on the device for detecting (3, 50), laterally relative to the element for detecting (12, 52), viewed along its dimension parallel to the closing direction, characterized in that the pawl (8, 28) comprises a chamfered surface in order to interact with the element for detecting (12, 52) and a stop located laterally relative to the chamfered surface in order to interact with a zone of the device for detecting (3, 50) which is separate from the element for detecting (12, 52). • a retracted position in which the element for detecting (3, 50) does not interact with the pawl (8, 28) during a displacement of the device for detecting (3, 50) from the delivery position to the use position and • a protruding position in which the element for detecting (3, 50) interacts with the pawl (8, 28) during a displacement of the device for detecting (3, 50) from the delivery position to the use position,