Fiat and Alfa Romeo share diagnostic platforms. For earlier vehicles see Fiat Examiner; for later and supported current vehicles see wiTECH. Fiat lists an Examiner emulator for pre-2011 vehicles and wiTECH 2.0 for Fiat and several related brands. Confirm application by VIN because there is no single universal changeover. Stellantis diagnostic solutions; Fiat diagnosis equipment.
Some shared-platform vehicles have other documented workflows. A towbar equipment supplier lists DiagBox for the trailer-function activation on its Fiat Scudo application together with related Citroën, Peugeot, Vauxhall and Toyota models. This specific procedure does not establish general DiagBox coverage for all Fiat vehicles. ECS Electronics instructions, May 2022.