An electrical connector assembly which has a first connector and a second connector. The first connector and second connector have connector housings with first latching areas extending from the top surfaces of the connector housings and second latching areas extending from the bottom surfaces of the connector housing. Sealing members are positioned proximate wire-receiving faces of the connector housings. Rear seal cover members are positioned in the connector housings. The rear seal cover members are configured to cooperate with the sealing members to prevent the rear seal cover members from being latched to the connector housing when the terminals are not fully inserted into the terminal receiving cavities of the connector housings.