Here are the instruction for removing the door panel.
To test the actuator, simply test for power and ground arriving at it when triggered.
See Figures 1 through 22
The many different design interiors make it impossible to list each fastener location. The trim panels that must be removed are held in place by screws and clips. These locations vary from model to model. After removal of all the fasteners that you are aware of, if the trim panel is still firmly attached, you probably missed a hidden fastener. If this happens, gently and carefully pry the area looking for the location that doesn't flex. The location that does flex is where you'll find the fastener(s) you missed. Screws and retainers are usually hidden. Handle trim, reflectors, light lenses and other plastic pieces usually cover the main retaining screws. Take great care with the plastic trim panels. Plastic trim panels are usually very hard plastic and extremely easy to crack. The following steps can be used to guide you through the removal and installation of the trim panels, but you may need to alter these steps to your specific needs.
Disconnect the negative battery cable.
Pull the inside door handle to the open position, unfasten the screw and remove the handle escutcheon.

