GMC Canyon II facelift (2020-2022) Backup lamps circuit

2.5L 2.8L TURBO DIESEL 3.6L AUTOMATIC TRANSMISSION ASSEMBLY (2.5L, 2.8L TURBO DIESEL) BACKUP ALARM (RIGHT REAR OF VEHICLE) BACKUP LAMP SWITCH BACKUP LP BACKUP LP BACKUP LP RLY CTRL BACKUP LP CTRL BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BLUNT CUT) BODY CONTROL MODULE (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CTRL ENGINE CONTROL MODULE ENGINE CONTROL MODULE (UNDER COOLANT RESERVOIR) GMLAN SER DATA - (1) GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES IGN MODE SW MODE CTRL IGN MODE SW MODE CTRL Y INSIDE REAR VIEW MIRROR INSTRUMENT PANEL FUSE BLOCK J420 (2.5L, 3.6L) LEFT BACKUP LAMP LEFT LOWER TAIL/STOP, TURN SIGNAL LAMP LEFT TAIL LAMP ASSEMBLY LEFT UPPER TAIL/STOP, TURN SIGNAL LAMP M/T NCA WIRE PARK/NEUTRAL SIG (1) RED WIRE RED/VIO WIRE RED/WHT WIRE REV SW SIG RIGHT BACKUP LAMP RIGHT LOWER TAIL/STOP, TURN SIGNAL LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT UPPER TAIL/STOP, TURN SIGNAL LAMP SIG A SIG B SIG C SIG P TRAILER BACKUP LAMPS RELAY TRAILER CONNECTOR TRAILER PROVISION TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION INTERNAL MODE SWITCH AUTOMATIC TRANSMISSION ASSEMBLY W/ TRAILER CONNECTOR W/O TRAILER CONNECTOR WHT WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE