for one of the main connectors to help with troubleshooting a particular circuit? BSM B3 Siemens Citroen Peugeot 9650618480

For a visual look at the internal relays and fuses, the Citroën C3 Owners Forum offers a teardown and wiring diagram.

: Separate fuses for left/right main and dipped beams (F9 through F12). Key Identification & Components

For those performing repairs, it is critical to match the (e.g., 9643498880 or 9650618480) exactly to ensure compatibility between the replacement unit and the vehicle's existing wiring.

The Siemens BSM B3 schematic is an invaluable tool for troubleshooting and maintenance. By understanding the device's internal workings, technicians can:

Manages and protects electrical circuits such as fuel pumps, headlights, wipers, and engine management components.