: Wiring for the communication lines that link the instrument cluster, radio, and engine management [1, 2]. Expert Advice for Owners
The Xsara Picasso uses a (BSI – Built-in Systems Interface) from PSA Peugeot Citroën, introduced around 2000. This is not a traditional fuse/relay layout; instead, a centralized computer controls power distribution, lighting, wipers, windows, locks, and even engine management communication. Schema Impianto Elettrico Xsara Picasso