Mercedes-Benz GLS-class X166 (2015-2019) Trailer light circuit

ANTI-THEFT ALARM SYSTEM/ EMERGENCY CALL SYSTEM BUTTON GROUP BATTERY COMPARTMENT PREFUSE BOX BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED WIRE BUTTON CAN B H CAN B H RBA CAN B L COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DRIVER DOOR FULLY ELECTRIC TRAILER HITCH SWITCH ELECTRIC BRAKE CONTROL ELECTRICAL CONNECTOR FUSE 115 FUSE 124 FUSE 125 FUSE 128 FUSE 130 FUSE 53 GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED LED LED RD(-) LED WH(-) LEFT FRONT DOOR CONTROL UNIT LIN B 13 OVERHEAD CONTROL PANEL CONTROL UNIT REAR FUSE BOX RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RFL (+) SAM CONTROL UNIT SIG SYSTEM TD SIG TD ST TOWING SENSOR BUTTON TRAILER RECOGNITION CONTROL UNIT TRAILER SOCKET (7-PIN) (CENTER OF REAR BUMPER) TRUNK LID/LIFTGATE FULLY ELECTRIC TRAILER HITCH SWITCH WHT WIRE WHT/BLK WIRE YEL/RED WIRE