Yes, with a meter you can ohm the switches out. There is a 3 pin connector which should be blue/white, black and green/white. Put the ground lead in the center black wire and put the red lead in either of the other wires. Press the up or down switch. If using a digital meter when you press the switch the meter should change from OL to 0.00, then swap the red lead to the other wire and press the other switch and the same should happen. You have just verified the switches. If you look at the plug you can unlatch the side clips and then hinge that cover open and back probe the connector thru the green seals. Or, just use a paper clip. About a 2 minute test to get done. Post back your results.