Robert Bosch LLC has expanded the diagnostic capabilities of its Mastertech VCI (M-VCI) aftermarket scan tool to provide authentic OEM dealer level diagnostics for Chevrolet, Buick, GMC and Cadillac branded vehicles. The M-VCI scan tool includes two aftermarket diagnostic applications--ESI(tronic) 2.0--which provides coverage for a variety of European and Korean vehicles, and the award-winning Shop Foreman Pro software, which provides extensive Asian and domestic coverage.