Systems and vehicles for determining an operational status of at least one trailer brake are provided. The general query specifies at least one ambiguous parameter having a plurality of potential values. The terminal module assembly defines an insulator associated with a plurality of contacts with corresponding contacting sections exposed upon opposite upper and lower faces of the mating tongue, the contacts are categorized with differential pairs and grounding contacts. The dispense temperature may be in the range of \u22121\xb0 C.