An electrical connector assembly is described which comprises an insulative housing comprised of at least one terminal receiving cavity, having a terminal opening and a mating terminal opening. A primary latch is positioned in the cavity provides a space between the primary latch and a base wall and an insulative contact extends laterally of the primary latch and is profiled to deflect the primary latch towards the base wall upon deflection of the insulative contact. An electrical terminal is positioned in the at least one cavity; and a terminal position assurance member is insertable below the primary latch and within the space. When the electrical terminal is fully positioned, the space is sufficient to accept the terminal position assurance member, and when the terminal is not fully inserted, the insulative contact is deflected by the electrical terminal, and the space is insufficient to accept the electrical terminal.