Must be careful when changing displays from one machine to another, because not all have the same SW.
Some trucks have fiited black traction AC controllers and older version have fitted grey AC inmotion controllers. They are NOT compatible. When you change the display the truck will ask you "D_VALID EEPROM" if press yes (PRG) the display program will be installed. If press no, It confirms its own program and will be recorded on the console.
Regards
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