Backup lamps circuit for Mercedes-Benz CLA-class C118 (2019-2023)

BL (+) BL/TSI (+) BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BUL (+) CAN B H STERN CAN B L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 21 GRY/BLU WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT REAR LAMP UNIT RED WIRE RIGHT REAR LAMP UNIT VIO/BLK WIRE