FIG. 1 is a top plan view of a control switch showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a front and upper right perspective view thereof.

The broken line showing of the switch housing is included for the purpose of illustrating environmental elements only and forms no part of the claimed design.