This is a good example of what I meant.
Here the poster (Paul) is assuming the four nodes/points/signals are used to sink motor current (due to the almost.non-existent intel)
This is evident by the reference to "kick back diodes" which go in parallel with an inductive load, such as a motor.
I on the other hand think those points are inputs of a chip , and NOT connected to the load. Paul's suggestion hints at a smarter solution though, which is "screw the onboard circuit " and just cut the motor wires and add your own custom circuit, designed from the ground up ( no pun intended) and be done with it. Then you don't have to.worry about those four points anymore. There is only one reason this has not already been done and Paul knows what I am talking about.
@Paul,
Would you care to explain WHY the OP has NOT done this and is still screwing around with the four bloody "points" (for lack of a better name for them) ?