ECU Circuit Diagram for Bosch (ECU Schematic) - autodtc ECU Circuit Diagram database - download 400 documents : ECU wiring diagram, schematics for cars and info for Bosch EDC16, EDC17, EDC15, ME71, ME75, MED7. Free Wiring Diagrams - No Joke - FreeAutoMechanic Free wiring diagrams for your car or truck. Including lighting, engine, stereo, hvac wiring diagrams. Get your Free Automotive Wiring Diagrams Sent right to you, Free