Automotive Wiring Diagram Symbols Legend - Ford Bronco Schematic Key

This document is a legend/reference chart titled "Wiring Diagram Symbols" that identifies the schematic symbols used in automotive wiring diagrams. It presents labeled graphical symbols in four rows. The first row covers protection and basic components: circuit breaker, fuse, fuse link, ground, splices, capacitor, diode, two solenoid symbol variants, knock sensor, and an ignition switch symbol showing its five positions (Start, Run, Off, Lock, Accy). The second row shows switch and relay symbols: normally open and normally closed switches (two variants each), a 3-position switch, battery, and two relay symbol variants. The third row shows resistors and variable resistors (two styles each), a speed sensor, a "choice bracket" symbol, and a motor. The fourth row shows two bulb symbol variants, an LED, two heating element variants, and two heated exhaust gas oxygen sensor (HEGO) symbol variants. The chart lets a reader decode any symbol encountered while reading factory wiring diagrams, such as those for a Ford Bronco. It contains no fuse ratings, wire colors, part numbers, or vehicle-specific data, it is purely a symbol key intended to accompany a set of wiring diagrams.