2007 Yukon Denali XL lift gate question.

[N2TRUX]

I have a problem with my 2007 GMC Yukon Denali liftgate that won't open or close electrically. When I hit the remote button I hear the lock motor disengage, the lights flash but the gate won't go up.

When opened manually if I try to close it with the remote the lift motor starts then stops. This tells me the motor is getting 12v, and I have checked the recommended fuses as well. If I manually release and open the gate the struts will hold it up so I don't feel they are bad.

Is the motor weak? Does it have a protect circuit that shuts it down? I am not sure which way to look from here.