I took my Endeavor in because the rear passenger window would roll down but not come back up - stopped the car, restarted and after a few tries would come roll up. The repair shop replaced the motor, regulator - not it, swapped the passenger switches from left to right and still did not work, changed out the main switch panel on the driver side and still did not fix the issue....they took a meter and could see that the 12 volts was at the motor and could put 12 volts on the motor to raise the window so the motor is good and regulator ...its like the child guard may have a connection to a sensor that keeps the motor from working ? or a harness ? - suggestions ? looking for without taking into the dealer at $450-500 price tag...

Suggestions to try next - is there a connection for the child guard ?

 

These vehicles are known for having wiring issues where they pass from the door into the vehicle.Most often on the drivers door because that one gets used the most and wires insulation cracks and shorts out or breaks completely.