Abstract: A contact pin for a plug connector includes a contact wire and an impedance adaptation element from a residual piece of a bandoleer strip, wherein the impedance adaptation element is arranged between the two ends of the contact wire. A plug connector includes the contact pin and a shielding receiving the contact pin as an inner conductor, wherein the shielding has a cross-sectional jump between the two ends of the contact pin along a longitudinal direction of the shielding, wherein the impedance adaptation element of the contact pin is arranged in a longitudinal direction of the contact wire at a level of the cross-sectional jump of the shielding. Manufacturing methods are provided for such a contact pint and plug connector.

Abstract: A method for the diagnosis of at least one vehicle component of a motor vehicle involves a) generating a diagnostic script for a diagnostic device of a motor vehicle in a diagnostic script provision unit formed separately from the diagnostic device, b) transferring the diagnostic script by means of a transfer device to the diagnostic device of the motor vehicle, c) authenticating an implementation authorization for the diagnostic script, and d) implementing the diagnostic script in the diagnostic device. Step d) is only implemented in the case of a successful authentication according to step b).