GMC Sierra III facelift (2015-2018) bus 12 Wiring diagrams

BACK SIG BACKUP LAMP CTRL BATT POS VOLT BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BUS 12 CAMERA LOW REF CAMERA SIG 2 CIRCUIT COAX COMPUTER DATA LINES SYSTEM CTRL DIMMING DISPLAY DISPLAY SIG + DOWN SIG FORWARD SIG GMLAN SERIAL DATA GRN/BLK WIRE GRN/BRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT PANEL JUNCTION BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LT GRN/DK BLU WIRE LT GRN/WHT WIRE LVDS MUTE NAVIGATION SYSTEM NCA WIRE NETWORK NETWORK BUS 10 NETWORK BUS 5 POWER DISTRIBUTION SYSTEM RADIO CONTROLS RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RAP RLY COIL CTRL REAR VIEW CAMERA CIRCUIT RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT STEERING WHEEL CONTROLS SWITCH SEATS SYSTEM SEEK DOWN SEEK UP SERIAL DATA BUS 5 SOUND SYSTEMS SOURCE UP SIG USB VIDEO SYSTEM VOICE VOL (-) W/ REAR VIEW CAMERA W/O REAR VIEW CAMERA WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE

BACK SIG BASE EQUIPMENT BATT POS VOLT BLK WIRE BLK/YEL WIRE BLU WIRE BUS 12 CIRCUIT COAX COMPUTER DATA LINES SYSTEM DISPLAY DISPLAY SIG + DOWN SIG EXCEPT BASE EQUIPMENT FORWARD SIG GMLAN SERIAL DATA GRN/BLK WIRE GRN/BRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HTD STEERING IND SIG INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT PANEL JUNCTION BLOCK LOGIC LT GRN/DK BLU WIRE LT GRN/WHT WIRE LVDS MUTE NETWORK NETWORK BUS 10 NETWORK BUS 5 POWER DISTRIBUTION SYSTEM RADIO CONTROLS RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT STEERING WHEEL CONTROLS SWITCH SEATS SYSTEM SEEK DOWN SEEK UP SOUND SYSTEMS SOURCE STEERING WHEEL AIR BAG COIL STR WHL CNTRL FUSE UP SIG USB USB/OBS DET FUSE VIDEO SYSTEM VOICE VOL (-) WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE

BACK SIG BASE EQUIPMENT BAT POS VOLT BATT POS BLK WIRE BLU WIRE BUS 10 BUS 12 BUS 5 CIRCUIT COMPUTER DATA LINES SYSTEM CTRL DATA DIMMING DISPLAY DISPLAY SIG + DOWN SIG EXCEPT BASE EQUIPMENT FWD SIG GMLAN SERIAL GRN/BLK WIRE GRN/BRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY/GRN WIRE HOT AT ALL TIMES ILL INFO DISPLAY MODULE INSTRUMENT PANEL JUNCTION BLOCK IPC FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LT GRN/DK BLU WIRE LT GRN/WHT WIRE LVDS MUTE VOL + NETWORK RADIO CONTROLS RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT STEERING WHEEL CONTROLS SWITCH SEATS SYSTEM SEEK SOURCE DOWN SEEK UP STEERING WHEEL AIR BAG COIL STR WHL CNTRL FUSE UP SIG VIDEO SYSTEM VOICE VOL (-) VOLT W/ FRONT COMPARTMENT FLOOR CUSTOM CONSOLE W/ REAR VIEW CAMERA W/O REAR VIEW CAMERA WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE

AUXILIARY AUDIO INPUT BACK SIG BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/LT GRN WIRE BUS 12 COMPUTER DATA LINES SYSTEM DIMMING CTRL DOWN DOWN SIG FORWARD SIG GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL JUNCTION BLOCK LOGIC LT BLU WIRE LT GRN WIRE LVDS MUTE NCA WIRE NETWORK RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT STEERING WHEEL CONTROLS SWITCH SEATS SYSTEM SEEK DOWN SEEK UP SELECT STR WHL CNTRL FUSE UP SIG USB VIO WIRE VIO/GRY WIRE VOICE W/ FRONT COMPARTMENT FLOOR CUSTOM CONSOLE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

BACK SIG BACKUP LAMP CTRL BATT POS VOLT BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BUS 12 CAMERA LOW REF CAMERA SIG 2 CIRCUIT COAX COMPUTER DATA LINES SYSTEM CTRL DIMMING DISPLAY DISPLAY SIG + DOWN SIG FORWARD SIG GMLAN SERIAL DATA GRN/BLK WIRE GRN/BRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT PANEL JUNCTION BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LT GRN/DK BLU WIRE LT GRN/WHT WIRE LVDS MUTE NAVIGATION SYSTEM NCA WIRE NETWORK NETWORK BUS 10 NETWORK BUS 5 POWER DISTRIBUTION SYSTEM RADIO CONTROLS RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RAP RLY COIL CTRL REAR VIEW CAMERA CIRCUIT RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT STEERING WHEEL CONTROLS SWITCH SEATS SYSTEM SEEK DOWN SEEK UP SERIAL DATA BUS 5 SOUND SYSTEMS SOURCE UP SIG USB VIDEO SYSTEM VOICE VOL (-) W/ REAR VIEW CAMERA W/O REAR VIEW CAMERA WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE

BACK SIG BASE EQUIPMENT BATT POS VOLT BLK WIRE BLK/YEL WIRE BLU WIRE BUS 12 CIRCUIT COAX COMPUTER DATA LINES SYSTEM DISPLAY DISPLAY SIG + DOWN SIG EXCEPT BASE EQUIPMENT FORWARD SIG GMLAN SERIAL DATA GRN/BLK WIRE GRN/BRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HTD STEERING IND SIG INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT PANEL JUNCTION BLOCK LOGIC LT GRN/DK BLU WIRE LT GRN/WHT WIRE LVDS MUTE NETWORK NETWORK BUS 10 NETWORK BUS 5 POWER DISTRIBUTION SYSTEM RADIO CONTROLS RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT STEERING WHEEL CONTROLS SWITCH SEATS SYSTEM SEEK DOWN SEEK UP SOUND SYSTEMS SOURCE STEERING WHEEL AIR BAG COIL STR WHL CNTRL FUSE UP SIG USB USB/OBS DET FUSE VIDEO SYSTEM VOICE VOL (-) WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE