2016 TRDOR Rear Diff lock question

My Owner’s manual page 251 (read diff lock section) says the MTS ABS will not operate when the rear diff is locked. The way I read that is if you have engaged MTS and rear diff lock at the same time, you have no MTS. The ABS is the system that is applied to the spinning wheel to cause the wheel with most traction to receive drive power. I have read many posts on forum indicating you might still have MTS on front axle. My interpretation is you have the rear locked and the ( one) least traction tire on front. Is anyone SURE how rear diff lock and MTS operates? Also, I have seen a chart posted on forum that indicates CC and MTS are selectable simultaneously. The owner manual contradicts that on page 257 stating MTS requires 4Lo and CC off. Thanks for clarification.