u/Brody2WD

I have a 2005 S197 GT and I can’t seem to get the cooling fan to work. Replaced the entire cooling fan with one confirmed to work, went through all of the fuses and replaced 1 blown fuse and a couple that even didn’t even look blown but dirty or old, checked the wiring harness, reflashed the tune (JLT intake on 91) Fan ran at one point for a split second after replacing the fan but will not run now. Used to be a low KAM voltage code but fixed that too. Besides entirely replacing the wiring harness I cannot figure out what to do. Anyone else have these issues?