GMC Acadia II facelift (2019-2024) Trailer tow circuit

BACKUP LAMP CTRL BACKUP LAMPS CIRCUIT BATTERY FUSE BLOCK BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BODY CONTROL MODULE (UNDER CENTER OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM GND 17 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES LEFT TRAILER STOP/ TURN SIGNAL LAMP RELAY REAR BODY FUSE BLOCK RED WIRE RED/GRN WIRE RIGHT TRAILER STOP/ TURN SIGNAL LAMP RELAY TRAILER BACKUP LAMPS RELAY TRAILER BRAKE PROVISION (BLUNT CUT) (FRONT OF CENTER CONSOLE) TRAILER BRK APPLY SIG TRAILER CONNECTOR TRAILER PARK LAMPS RELAY UNDERHOOD FUSE BLOCK VIO WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/GRY WIRE