PSA (Peugeot-Citroën) uses an internal system called (Schémas Electriques et Diagnostic des REseaux). If you ever get access to this (via Diagbox or Peugeot dealer), you can:
Look for twisted pairs labeled "CAN H" (High) and "CAN L" (Low) with colors like yellow and green. These connect ECUs.
By following these tips and guidelines, you'll become proficient in reading and using Peugeot 308 wiring diagrams, ensuring you're always in control of your car's electrical system.
Navigating the complex electrical architecture of the Peugeot 308 requires high-quality wiring diagrams, whether you're a professional technician or a dedicated DIYer. These diagrams are the backbone of any electrical repair, providing a roadmap for troubleshooting lighting, infotainment , and engine management systems. The Core Electrical Components
A ground symbol (three horizontal lines) leads to a numbered earth point. Example: "MC60" means earth point 60, often on the left inner wing.
: Codes like BA (White), BE (Blue), GR (Grey), and JN (Yellow) are used to physically identify wires in the loom.
Note: Wires often have stripes. Example: "MRJA" = Marron with Jaune stripe (Brown with Yellow).
Peugeot diagrams utilize specialized codes for supply types and wire identification that differ from standard automotive schematics: : BB : Direct battery supply (+ve). CC : Ignition-controlled supply (+ve). AA : Accessory-switched supply. KK : Supply available after ignition is switched off. M : Earth (ground) connection.
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