Did you just replace one switch (either passenger side or drivers side)? The power for the motor runs through the drivers side switch and the passenger side.
There is a testing procedure for the switches:
For the drivers side switch:
Press UP on the passenger side window (on the drivers switch) and check for a closed circuit on pins 2 and 3. If not a closed circuit the drivers side switch is bad.
For the Passenger side switch:
Press UP on the switch and check for a closed circuit between pins 3 and 1. If no closed circuit passenger switch is defective.