Step 4. Wire the #1 terminal to a key-switched ignition line. The easiest way to do this is to connect the wire from the alternator to an existing line for a dashboard light. This will also create a circuit that will signal the light on your dashboard to indicate a malfunctioning alternator. Chevy Alternator Wiring Diagram - Wiring Schemas Feb 18, 2022The #2 wire ensures the 14.4 or so output is fed to the entire system, eliminating any voltage drop. Its submitted by government in the best field. GM Alternator Diagrams GM 10SI/12SI Alternator Wiring . Gm 1 Wire Alternator Wiring Diagram Cadician's Blog . Derek Blog Alternator Gm 2012 Wiring Diagram . Help with a 4 TBI V6 (Alternator Related searches for 2 wire gm alt wiring diagram gm alt wiring diagramgm wiring diagram wire colorsford alt wiring diagramdelco alt wiring diagramgm wiring diagrams pdfgm 4 wire alternator wiringalt wiring for gm alt3 wire gm alternator diagram