VCADS provides tests and calibrations for VOLVO vehicles that are equipped with the Vehicle Electronics '98(VECTRO II) or Version 2 electronic control systtems. The application consists of a number of standrd graphical interfaces, such as graphs and continuous displays of parameters values. The operations are organized in the menu according to function groups. Some ECUs have changeable parameters that can be use to adjust or customize certain functions. Volvo ECUs often have two types of parameters: Customer parameters and Vehicle parameters.