I have an in line fuse back near my batteries for the transmission.
My rear passenger side electrical bay is pretty busy, there are actually 3 fuse holders with 7 fuses total. 6 for the engine/ECM and one for the tranny. There are fuse holders with covers on them, you pull the lower harness down to reveal the fuses.
Yours is probably different but you may take a good look near your battery and in any electrical bay.
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi