Chevrolet TrailBlazer II facelift (2017-2024) Trailer tow circuit

BLK WIRE BLU WIRE BLU/WHT WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM GRN/VIO WIRE GRY/BRN WIRE HOT AT ALL TIMES LEFT TRAILER STOP/ TURN SIGNAL LAMP RELAY LR TURN SIG LP CTRL PARK LAMPS RELAY REAR BODY FUSE BLOCK RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RIGHT TRAILER STOP/ TURN SIGNAL LAMP RELAY RR TURN SIG LP CTRL SERIAL DATA (-) (1) TRAILER CONNECTOR WHT WIRE YEL/GRY WIRE