Cadillac STS I (2004-2007) Backup lamps circuit

3.6L 4.6L 771 772 2501 36 24 21 TRS B TRS C HI SPD SER DATA - AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE HI SPD SER DATA + HOT AT ALL TIMES LEFT BACK-UP LAMP LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LO SPD GMLAN SER DATA LT GRN WIRE REAR INTEGRATION MODULE (IN LEFT SIDE OF REAR COMPT, UNDER REAR SHELF) REVERSE LAMP FUSE REVERSE LAMP RELAY REVERSE RLY CTRL RIGHT BACK-UP LAMP SPLICE PACK TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSION CONTROL MODULE (TCM) (A/T) (RIGHT FRONT CORNER OF ENGINE COMPT) TRANSMISSION MANUAL SHIFT SHAFT SWITCH ASSEMBLY TRS TRS A WHT WIRE YEL WIRE