Automotive Lighting System Wiring Diagram with Circuit Groups
Detailed wiring diagram illustrating a complete automotive lighting system, including headlights, taillights, DRL, and brake light circuits. Features comprehensive wire gauges, fuse ratings, bulb wattages, and dedicated ground points for each circuit group. Includes color-coded wiring and Layout-specific amperage specifications for easy troubleshooting and installation.
graph LR B[Battery 12V] -->|Red 10AWG| MF[Main Fuse 80A] MF -->|Protected Power| F[Fuse Box] subgraph Headlight Circuit F -->|15A Fuse Red| LS[Light Switch] LS -->|Yellow 16AWG| HR[High Beam Relay] LS -->|Yellow 16AWG| LR[Low Beam Relay] HR -->|White 14AWG| HB[High Beam 55W] LR -->|White 14AWG| LB[Low Beam 55W] HS[High Beam Switch] -->|Blue Wire| HR end subgraph Taillight Circuit F -->|10A Fuse Red| LS LS -->|Brown 16AWG| TL[Taillights 5W] LS -->|Brown 16AWG| ML[Marker Lights 3W] LS -->|Brown 16AWG| LP[License Plate Light 5W] end subgraph DRL Circuit F -->|7.5A Fuse Red| DM[DRL Module] DM -->|Gray 16AWG| DRL[Daytime Running Lights 35W] LS -->|Input Signal| DM end subgraph Brake Light Circuit F -->|15A Fuse Red| BP[Brake Pedal Switch] BP -->|Red/Black 14AWG| BL[Brake Lights 21W] BP -->|Red/Black 14AWG| CHMSL[Center High Mount Stop Lamp 21W] end B -.->|Ground Black| G[Ground Points] HB -.->|Ground Black| G LB -.->|Ground Black| G TL -.->|Ground Black| G BL -.->|Ground Black| G DRL -.->|Ground Black| G style B fill:#ff9999,stroke:#333,stroke-width:2px style F fill:#99ff99,stroke:#333,stroke-width:2px style LS fill:#9999ff,stroke:#333,stroke-width:2px style HR fill:#ffcc99,stroke:#333,stroke-width:2px style LR fill:#ffcc99,stroke:#333,stroke-width:2px style DM fill:#cc99ff,stroke:#333,stroke-width:2px style G fill:#cccccc,stroke:#333,stroke-width:2px
About This Diagram
This wiring diagram provides a detailed view of the automotive lighting system wiring diagram with circuit groups. Use this diagram for troubleshooting electrical issues, understanding system connections, and performing maintenance on your vehicle's electrical systems.