I have been trying to solve a speedometer issue in the repair subforum here but in my reading and researching the problem, I realized my 2015 Honda Rancher 4×4 has 2 speed sensors apparently. I was only aware of the one, in the rear on the bottom of the crank case where the drive shaft exits toward the rear axle. I recently learned there is apparently a 2nd one on the front final gear assembly – the same exact honda part number. My question is why would an atv have 2 speed sensors? Do the 2 work off of one another somehow? Does the front sensor only work when in 4×4 for some reason? Im just really wanting to know the answer to this question. It may help me diagnose the issue Ive been having. I do know that when I unplug the rear sensor the speedometer, odometer, and trip meter all stop working.

Id prefer someone who knows the real answer to explain it to me, rather than lots of speculation.