Wiring Schematics by Blue Bird Body Number - Central Central States Bus Sales technical support team is happy to assist you in finding a wiring diagram for your bus or helping to diagnose your Blue Bird bus electrical system. There is a link on this webpage for Blue Bird wiring schematics by school bus body number. If your Blue Bird bus is a Micro Bird by Girardin call us for assistance in using their secure website to access wiring diagrams for Bluebird Bus Wiring Diagram | Free Wiring Diagram Variety of bluebird bus wiring diagram. A wiring diagram is a simplified standard pictorial representation of an electric circuit. It reveals the parts of the circuit as simplified forms, and the power as well as signal links in between the tools.