PAC Interface for GÇÿ06 - GÇÿ20 GM Vehicles with LAN 29 Bit Data busThe PAC Interface for GM Vehicles (20062020) with LAN 29 Bit Data bus serves as a precise bridge for PAC systems to communicate with GM networks using the LAN 29 bit protocol. Designed for technicians and enthusiasts working on GM vehicles from 2006 through 2020, it enables reliable data exchange and hands on testing. Compatibility: GM vehicles from 2006 through 2020 equipped with LAN 29 Bit Data bus. Bus Protocol: LAN 29 Bit Data bus support to