Buick LaCrosse II (2009-2013) Backup lamps circuit

3.6L 3.6L EXCEPT AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLU WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK GRN WIRE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) EXCEPT 3.6L 3.6L FUSE GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES INSIDE REARVIEW MIRROR LEFT BACKUP LAMP LEFT TAIL LAMP LT GRN WIRE LT GRN/WHT WIRE PARK/NEUTRAL SIG REAR WINDOW SUNSHADE MODULE REARVIEW CAMERA RED WIRE RED/YEL WIRE RIGHT BACKUP LAMP RIGHT TAIL LAMP SIG A SIG B SIG C SIG P SUPPLY VOLT TRANS- MISSION INTERNAL MODE SWITCH TRANSMISSION CONTROL MODULE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO/YEL WIRE WAKE UP SIG WHT LT GRN/ WIRE WHT WIRE WHT/GRY WIRE YEL WIRE