Door Module or Central Module, need help!
 

My RF door window stopped working the other day, the motor was just making a slight groaning noise. I jumped power to the motor and it is fine? I suspect low voltage to the motor to be the problem.
When trying to diagnose the motor/window problem the module goes into protection and shuts the door off completely.
I see in the manual there are two modules that control the door, any advise as to how to diagnose the condition without a DTC Scanner or if it is the General Control Module or the Door Module?

the drivers side module controls everything. might want to measure the output voltage from there and check the connections.

Its not the GMC. If it was that ,normally alot of other things in the car would start flipping out at the same time not just RF door. You have a short that is causing a voltage drop between the L door to the R door, or that motor could be giving out