GM Tech 2 comes with Authentic GM software and provides on-board diagnostics on all GM systems from 1992 to 2012, supports GM, SAAB, OPEL, SUZUKI, ISUZU and Holden with free 32MB card and CANDI module.
OPCOM 2014 diagnostic tool for Opel cars covers almost all Opel cars, even new cars with CAN-BUS based diagnostic, such as Vectra-C, Astra-H, Zafira-B. opcom 2014 lets you read and clear fault codes, support many control units.