I have a 2013 Chevy Suburban. The rear main hatch does not open. The top window hatch works as it should. There does not seem any power is going to the main rear hatch I replaced the switch and latch actuator. I checked the fuses and yes, the on/off switch. Still nothing. I am reaching out for any advice. Thank you!

 

Before you replaced the latch actuator (and switch), did you check for power getting to the actuator when the switch was pushed?

 

The lift gate module controls the motorized latch as well as the lift motor and the glass latch also.
System needs to be scanned for codes as there are sensors in the sides of the gate along with the motors. Codes will not show up on a P code scanner. Needs to be scanned with a shop level all 4 code family scan tool.
Proper scan needs to be done otherwise it's a money wasting parts swapping guess.. If module is bad it will need to be calibrated also. This is per the shop manual.
If it's a broken wire the manual will be needed to identify and trace out the big bundle of wires that goes into the rear gate.