Car Wiring Diagrams for Backup lamps circuit for GMC Sierra III facelift (2015-2018)

BACKUP LP RLY CTRL BATT POS VOLT BATTERY FUSE BLOCK BCK UP LAMP FUSE BCM 5 FUSE BLK WIRE BLU/BRN WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DK BLU WIRE FUSE 2 GMC GRN/RED WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INSIDE REAR VIEW MIRROR INSTRUMENT PANEL JUNCTION BLOCK J124 (6.0L VIN G, 6.0L VIN B) J123 (6.6L TURBO DIESEL) LEFT BACKUP LAMP LEFT INSTRUMENT PANEL FUSE BLOCK LEFT LOWER TAIL/STOP, TURN SIGNAL LAMP LEFT REAR SIDE MARKER LAMP LEFT TAIL LAMP ASSEMBLY LEFT UPPER TAIL/STOP, TURN SIGNAL LAMP LOGIC LT GRN WIRE LT GRN/WHT WIRE NCA WIRE REAR VIEW CAMERA RED/BRN WIRE RED/GRN WIRE REV LAMP FUSE RIGHT BACKUP LAMP RIGHT LOWER TAIL/STOP, TURN SIGNAL LAMP RIGHT REAR SIDE MARKER LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT UPPER TAIL/STOP, TURN SIGNAL LAMP TRAILER BACKUP LAMPS RELAY UNDERHOOD FUSE BLOCK W/ BODY EQUIPMENT W/O BODY EQUIPMENT W/ LED W/ SPECIAL EQUIPMENT W/O LED WHT WIRE WHT/LT GRN WIRE

4.3L/ 5.3L 6.0L 6.6L 6.2L 6.2L, 5.3L 6.6L TURBO DIESEL AUTOMATIC TRANSMISSION ASSEMBLY BACKUP ALARM BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLUNT CUT) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - DK BLU WIRE ENGINE CONTROL MODULE GMLAN SERIAL GMLAN SERIAL DATA BUS + GRN WIRE GRY WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD IMS MODE SWITCH RETURN LOW REF ORG/BLK WIRE PARK/NEUTRAL SIG PNK/BLK WIRE PPL/BLK WIRE PRNDL A SIGNAL PRNDL B SIGNAL PRNDL C SIGNAL PRNDL P SIGNAL TRANSMISSION SENSOR B PRNDL S SIGNAL RED WIRE SERIAL DATA BUS- SIG A SIG B SIG C SIG P SW SIG A SW SIG B SW SIG C SW SIG P TAN/WHT WIRE TRAILER CAMPER PROVISION TRAILER CONNECTOR TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION INTERNAL MODE SWITCH AUTOMATIC TRANSMISSION ASSEMBLY TRANSMISSION SENSOR A TRANSMISSIONS SYSTEM VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/LT GRN WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE