Trouble shooting – OPEL / VAUXHALL, The program cassette in the Multi-Tester pro is the component whichgives the diagnostic equipment its unique test performance. The programcassette can easily be changed to set the Multi-Tester pro up quickly forthe diagnostic task at hand. The Multi-Tester pro software is available in two levels of functionality,Plus line and Pro line. This manual covers the operation of the Pro linecartridge. Although operation and display screens are identical for eachline, please be aware that some of the functions described are not availableon Plus line cartridges. The Plus line cartridge has the following functions: engine DTC:s andmonitor list, airbag DTC:s, ABS DTC:s and service light resetting as wellas snapshots. This fault-finding instruction describes the serial application for troubleshooting via the diagnostic connector on Opel and Vauxhall.