I've been having a lot of problems with my truck running correctly lately and have had no luck in fixing it so far. I pulled this code but would like to know what it is telling me and what would cause it.

U1262 SCP data fault for J1850 bus

 

"U" codes are module communication faults. I am not sure which one it is looking for, but sometimes these codes will be set for optional modules that aren't there. It is not uncommon to see "U" codes when you truck is not fully equipped. Aslo, if you have recently reprogrammed your computer, it could have set that code, because it is very common to see module communication failures at that time, however, the programming process is supposed to clear codes when done.