An electrical connector assembly includes an electrical connector and a module. The electrical connector includes a connector housing and a first plurality of electrical terminals supported by the connector housing. The module includes a module housing and a second plurality of electrical terminals supported by the module housing. The second plurality of electrical terminals is greater in number than the first plurality of electrical terminals, such that a first select number of the second plurality of electrical terminals is configured to mate with the first plurality of electrical terminals, and a second select number of the second plurality of electrical terminals is configured to mate with an auxiliary electrical component.