Diagnostics unit using boundary scan techniques for vehicles

摘要

A test system including a diagnostics unit comprising a plurality of diagnostics-unit interfaces to communicatively couple the diagnostic unit to a plurality of units under test and a unit diagnostic communication port via which a unit diagnostic control device is communicatively coupled to the diagnostics unit. Each unit under test includes a module bridge interface and boundary-scan test functionality. When the module bridge interface of each of the units under test is communicatively coupled to a respective one of the plurality of the diagnostics unit interfaces, the boundary-scan test functionality of the respective unit under test is communicatively coupled to the unit diagnostic communication port in order to communicate with the unit diagnostic control device when the unit diagnostic control device is communicatively coupled to the diagnostics unit.