Backup lamps circuit for Mercedes-Benz C-class W205/S205/C205/A205 facelift (2018-2021)

*** BACKUP RELAY BL (+) BL (+) HECKL BL (+) HECKR BLK/BLU WIRE BLK/GRN WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BUL (+) BUL (+) HECKD CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM COUPE CONVERTIBLE ELECTRONIC IGNITION SWITCH CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL UNIT FUSE 477 FUSE 481 FUSE 482 FUSE 7 GRN/BLU WIRE GRN/BRN WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT LEFT REAR LAMP UNIT N/A N/A REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RIGHT REAR LAMP UNIT SEDAN VEHICLE INTERIOR PREFUSE BOX YEL WIRE YEL/WHT WIRE