Cummins isx not connecting to Scan tool

Sory about that i am new here i always come off the wrong way , i dont really know much about these cummins and can use all the help and i appreciate that diagram alot and your help . They took the truck today once he gets back i will get the VIN and check for power/ ground and resistance.

 

its starting to sound more and more like the fuse blown but I could of sworn all the fuses are good i checked them like three times that was the only part i did know about this situation the only fuse panel i know of is underneath the d/s clutch pedal is there another one anywhere in the dash or anything?????? i will take some pics of the fuse panel , they had used the truck all day and got home after me im gona check again tomorow hes should be off . I am going to check for for power and ground nd then resistance like push said, but i was able to get the VIN 1NKDX7EX2CJ953947

 

yes i checked them and this is where im at there is no power at all to the power pin but all the fuses are frigin good and i even replaced them all with new ones and made sure there all in proper contact i even found two hiding way up top on that panel and still all good and currently even more lost now, i managed to get a pic of the inside fuse box there was also one outside with mini fuse amps in it but still nothing. is there anything else connected power for the j1939 connection port?

 

yes aha now that u mentioned that it is very corroded in that area even the j1939 port had corroded but i cleaned it and 100% definitely has no power there. sounds like the panel is going to have to come off im thinking the wires must of corroded somewhere for the power line maybe for the port???? didnt know it was from the windshield fluid as this is the only truck that has a fair amount i kept telling the driver to clean his dam boots aha guess i know what the real verdict is