Handbook 652 Body Electrical Diagnosis Abbreviated Illustrations Note that system circuit diagrams only show the parts of components that directly relate to that circuit. In the example above, the two switches are shown differently, but they are actually the same component, a headlight switch: • The one at the top is from the headlight system circuit. • The one at the bottom is from the taillight system circuit. Junction connectors, junction blocks, and relay blocks are other examples of component illustrations that will only show the part of the component affecting the circuit. 60 Technical Training