Backup lamps circuit for Mercedes-Benz C-class W204/S204/С204 facelift (2011-2015)

21 22 RFL-R RFL-L 31 30 CAN B L CAN B H 6 7 CAN C L CAN C H BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM FRONT ELECTRICAL GRY WIRE GRY/BLU WIRE GRY/YEL WIRE LEFT REAR LAMP BACKUP UNIT LAMP REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/ CARGO AREA) RED WIRE RIGHT REAR LAMP BACKUP UNIT LAMP W/O ECO START/STOP FUNCTION W/ ECO START/STOP FUNCTION YEL WIRE