Q: Window electrical system does not work for all windows. I have changed the fuses. Door panel is off. I do not see a manual crank.
A: If the rear door panel is already off, detach the cable connector to the electric motor and also detach the motor itself from the mechanical window regulator. Then see if you can move the window manually up or down using your hands, holding the lower area of the glass itself. If not, you can visually see what is wrong with the mechanical parts. If the glass moves without any problem, then your problem is most probably electrical in nature. Check for battery voltage at the cable connector to the motor, with the connector detached and the switch pressed, with the ignition switch on or motor running. If there is power at the connector, then your motor is bad. With no power, check the window switch for both input voltage, ground and output voltage. With no input voltage, check your fuse(s). If fuse is OK, then you have a bad general module.