Trailer tow circuit for Buick Enclave I (2007-2013)

13 12 LEFT TRAILER TURN SIG LAMP RIGHT TRAILER TURN SIG LAMP 16 17 DATA BUS+ DATA BUS- BACKUP LAMP RELAY CONTROL BLK WIRE BLU WIRE BODY CONTROL MODULE (BCM) (UNDER LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE) GRN WIRE GRY WIRE HOT AT ALL TIMES I/P LAMP SPLY VOLT LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY LT GRN WIRE LT TRLR STOP/TRN FUSE ORG/ WIRE PARK LAMP RELAY RED WIRE RED/BLK WIRE RIGHT TRAILER STOP/TURN RT TRLR STOP/TRN FUSE SIGNAL LAMP RELAY STOP LAMP SPLY VOLT STOP LAMP SUPPLY VOLTAGE TAN WIRE TAN/BLK WIRE TRAILER BACKUP RELAY TRAILER CONNECTOR (IF EQUIPPED) TRAILER PROVISION (BLUNT CUT) (IF EQUIPPED) TRLR BCK/UP FUSE TRLR BRK FUSE TRLR PRK LAMP FUSE TRLR PWR FUSE UNDERHOOD FUSE BLOCK (ABOVE RIGHT FRONT WHEELWELL) WHT WIRE YEL WIRE