JCB Diagnostic tool:https://www.autonumen.com/goods-4429-JCB-Electronic-Service-Tool-Diagnostic-Interface.html Service Master – used for fast and effective fault finding, check maintenance standards, see if the machine has been abused, view and change machine set up data, flash ECUs with the correct data files. You can reset EMS hours, edit speed limiters and use other functions what require special unlock.