what this codes mean?

can some one please tell me what this codes are? mid128 sid6 fmi5 the truck is a volvo 2004 with volvo engine

 

Thank you Mr Pablo do you have an idea what can be causing this problem because i took the truck to the dealer and they replace injector #6 but it did not fixed the problem so i took back but they are still trying to figure out what the problem is. This is the mesaje it shows in the truck dash board injector #6 electrical fault, thank you very much for you help

 

Hello alwaysometime,the dealear replace the injector but it was not the injector it was a wire unplug from the engine ecu and that was making the injector not to work properly. Iam sorry i took this long to answer you msj but if you still have not fix the problem
you probably want to take the truck to a good electric mecanic because the dealer charged me over $2,000 and did not fix the problem i took to this guy i know and he only charged me $600 for labor no parts and fixed the porblem