ADC problem

Newbie here. Have 2012 550 eps touring and 2014 xp 550 eps. Went through stream maybe up to to foot rests. Xp 550 no problem. 2012 blew 20 amp drive fuse. Put in new fuse and it immediately blew. Got back to camp and investigated. Found wire to adc was shorting to ground. Checked wiring, no obvious problem other than the fact that it shorts. Suspected a problem with the coil. When I got home from camping trip, retested and now all is normal including resistance to both awd and adc coils (I have a FSM). Fuse no longer blows and no short to ground. Suspect water issue. Why on 1 atv and not the other? I haven’t pulled the gear drive out (big job) but will if necessary. Should I not worry about it or proceed with pulling out the gear drive and pulling the cover on the adc and investigating coil looking for short? Would greatly appreciate advice from more experienced users. Thanks.