Where to find
Although it it possible to find inspiration from diagrams on approaching models, the wiring diagrams the most relevant to my car (RH car > VIN 13681) are in the Workshop Manual document section 16 , page 347 (all page numbers refer to the PDF document) :
Sheet 1 : Theoretical diagram, Sheet 1, page 348.
Sheet 7 : Charging circuit, Sheet 7, page 375.
Sheet 8 : Exterior lighting, Sheet 8, page 379.

Source: Workshop manual