Trailer tow circuit for GMC Savana H1500 (2003-2013)

BACKUP LAMPS CIRCUIT BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BRN WIRE DK BLU WIRE DK GRN WIRE EXCEPT 5.3L W/ BACKUP ALARM HOT AT ALL TIMES HOT W/ PRK LAMP LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY LT GRN WIRE LT STOP/ TRN TRLR FUSE LT TRAILER TURN SIGNAL LAMP ORG/ WIRE RED WIRE RED/BLK WIRE RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY RT STOP/ TRN TRLR FUSE RT TRAILER TURN SIGNAL LAMP TRAILER CONNECTOR TRAILER PROVISION (BLUNT CUT) TRLR PRK LAMP FUSE TRLR WRG FUSE TRLR WRG FUSE 11 UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT(OR BLK) WIRE YEL WIRE