fault codes

I'm occasionally throwing fault codes, I tried looking them up but not sure I'm doing it right. It's an 05 Int'l 9400i with Cummins ISX. The two codes showing today were

128:F00
PID155_A

136:F04
SID004_A

can anyone tell me what these are for sure ? and/or explain to me how to look them up myself ?

 

thanks, that's the links I've been using. But I'm still unsure. For example, the first code 128:F00, PID155_A. I look up 128 as the "MID" and it seems to be an engine code, I go to the Cummins pages. Now, if I look up "155" in the first column it says "Engine diagnostic code 5", but if I look up "155" in the third column it says "exhaust temperature over 200 F". Not sure which one or which number refers to what because the order of the numbers displayed do not match the ones in the manual. What am I supposed to do with the "F00" part of the code ? I do know that "_A" part means active.