since 2 days ago, my rover right side wheel loses power (torque), when climb a hill, always the rover turn to right side. but on the flat road, it is fine.
If the rover goes by Auto, RTL mode, it is fine, can go straight.
I tested motor using motor driver tools (Basicmicro), it is fine.
But when I test in MissionPlanner by Test C or Test D, one side motor always slow.
I replaced 2 side motors and motor driver(Basicmicro), it is same problem.
I have used them over 3 years.