GMC Sierra III (2013-2015) trailer backup lamps relay wiring diagram

A/C CLUTCH FUSE A/C COMPRESSOR CLUTCH RELAY ABS ABS VLV PUMP FUSE FUSE ACTIVE GRILLE AIR SHUTTER 1 MOTOR MODULE ACTIVE TRANSFER GRILLE CASE AIR CONTROL SHUTTER 2 MODULE MOTOR (A/T) MODULE AERO SHUTTER FUSE BLK WIRE BODY LEFT RIGHT CONTROL COOLING COOLING MODULE FAN FAN MOTOR MOTOR CHASSIS CONTROL MODULE (W/ INTEGRATED TRAILER BRAKE) CHASSIS CONTROL MODULE (W/O INTEGRATED TRAILER BRAKE) COOL MDL/BATT RVC FUSE COOL FAN 1 FAN 2 FUSE FUSE ECM IGN FUSE ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROL MODULE ENGINE CONTROLS IGNITION RELAY EVAPORATIVE EMISSION VENT SOLENOID VALVE FPPM FUSE FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) FRONT AXLE ENGAGEMENT ACTUATOR FRONT FOG LAMP RELAY FUEL PUMP DRIVER CONTROL MODULE HEADLAMP HIGH BEAM RELAY HORN FRT/WPR FUSE RELAY I/P BEC 1 FUSE I/P BEC 2 FUSE ICCM FUSE IGNITION MAIN RELAY INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL JUNCTION BLOCK TRAILER CONNECTOR LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY LT GRN/VIO WIRE NCA WIRE REAR DEFOGGER RELAY RED/BRN WIRE RED/DK BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/LT GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY STARTER RELAY STOP LAMP RELAY STRTR FUSE TCM/ECM FUSE TO LEFT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 1 OF 5) TO LEFT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 5) TO SPLICE (LEFT FRONT (DIAGRAM LOWER 5 OF 5) SIDE OF ENGINE BLOCK) TRAILER BACKUP LAMPS RELAY TRAILER BRAKE POWER CONTROL MODULE TRAILER PARK LAMPS RELAY TRANS IGN FUSE TRANSFER CASE MOTOR (A/T) TRLR BATT FUSE FUSE TRLR BRK FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BLK WIRE VIO/GRN WIRE WHT/VIO WIRE WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY