PM-Picturemodule PMTAB_Picture Ignition ON Press F5 to switch to second main menu level. PM-Picturemodule PMTAB_Picture Second main menu level is displayed. Press F4 to open Screen Brightness menu. PM-Picturemodule PMTAB_Picture Screen Brightness menu is displayed. Press F1 to open Diagnostics menu. Fav 900 chassis number 23/3001 and up General Farmer 400 Fav 700 Fav 900 Tractor / General system Tractor diagnostics with terminal A008 A Date Version Page Tractor diagnostics with terminal A008 Capitel Index Docu-No. 12.2.2001 a 1/2 0000 A 000015