GMC Sierra III facelift (2015-2018) blk Wiring diagrams

4.3L/ 5.3L 6.0L ACC WAKEUP SER DATA AUTOMATIC TRANSMISSION ASSEMBLY AUTOMATIC TRANSMISSION FLUID TEMPERATURE SENSOR SIG BATT + BLK WIRE BLK/LT GRN WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA DK BLU WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE GMLAN DATA - (1) GRY/VIO WIRE HOT AT ALL TIMES HOT W/ IGNITION RELAY ENERGIZED IGN INSTRUMENT CLUSTER IPC FUSE J126 (4.3L, 5.3L) J125 (6.0L) LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC LOW REF PARK/NEUTRAL SIG PC SOLENOID 1 CONTROL PC SOLENOID 2 CONTROL PC SOLENOID 3 CONTROL PC SOLENOID 4 CONTROL PC SOLENOID 5 CONTROL POWER DISTRIBUTION SYSTEM PPL/WHT WIRE PRESSURE CONTROL SOLENOID VALVE 1 PRESSURE CONTROL SOLENOID VALVE 2 PRESSURE CONTROL SOLENOID VALVE 3 PRESSURE CONTROL SOLENOID VALVE 4 PRESSURE CONTROL SOLENOID VALVE 5 RED/GRY WIRE RED/LT GRN WIRE REPLICATED TOS SIG SERIAL DATA (-) (1) SERIAL DATA (-) 1 IGN 1 VOLT SHIFT SOLENOID 1 CONTROL SHIFT SOLENOID 2 CONTROL SHIFT SOLENOID VALVE 1 SHIFT SOLENOID VALVE 2 SIG GND TCM/ECM FUSE TO TRANSMISSION INTERNAL MODE SWITCH (DIAGRAM 2 OF 2) TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID VALVE TOS SIG TOW/ HAUL IND TRANS IGN FUSE TRANSMISSION CONTROL MODULE TRANSMISSION FLUID TEMPERATURE SENSOR UNDERHOOD FUSE BLOCK VEHICLE SPD SENS LO REF VEHICLE SPD SENS SIG VEHICLE SPEED SENSOR VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/GRY WIRE WHT/LT GRN WIRE

AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE ENGINE CONTROL MODULE GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD SER DATA (-) 1 PARK/NEUTRAL SIG (1) RED WIRE TRANSMISSION CONTROL SOLENOID VALVE 1 TRANSMISSION CONTROL SOLENOID VALVE 2 TRANSMISSION CONTROL SOLENOID VALVE 3 TRANSMISSION CONTROL SOLENOID VALVE 4 TRANSMISSION CONTROL SOLENOID VALVE 5 TRANSMISSION CONTROL SOLENOID VALVE 6 TRANSMISSION CONTROL SOLENOID VALVE 7 TRANSMISSION CONTROL SOLENOID VALVE 8 TRANSMISSION CONTROL SOLENOID VALVE 9 TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION OUTPUT SHAFT SPEED SENSOR VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

BATT POS VOLT BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DK BLU WIRE GRN WIRE GRY/WHT WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPT WARN DISABLE SW SIG LANE DEPT WARN IND CTRL LO SPD GMLAN SER DATA RED/GRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK USB/OBS DET FUSE WHT WIRE WINDSHIELD FRONT VIEW CAMERA

BATT POS VOLT BLK WIRE BLU/GRY WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMM ENABLE COMPUTER DATA LINES SYSTEM DISABLE SW SIG LOW SPD GMLAN SER DATA DK BLU WIRE GRN WIRE GRY/WHT WIRE HI SPD GMLAN SER DATA (+) 1 HIGH SPD GMLAN SER DATA (+) 8 HIGH SPD GMLAN SER DATA (-) 8 HIGH SPD SER DATA (-) 8 HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPT WARN IND CTRL RED/GRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK USB/OBS DET FUSE WHT WIRE WHT/DK BLU WIRE WHT/GRY WIRE WINDSHIELD FRONT VIEW CAMERA

AUX AUDIO COMM SIG AUX AUDIO SCREEN (2) AUX DETECTION SIG AUXILIARY AUDIO INPUT BASE EQUIPMENT EXCEPT BASE EQUIPMENT BATT POSITIVE VOLT BK AM/FM ANT SIG BLK WIRE BLK/YEL WIRE BLU WIRE COAX COMPUTER DATA LINES SYSTEM CU XM/HD DISTRIBUTION GMLAN SERIAL DATA GRN WIRE GROUND GRY WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES IPC FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LH AUX AUDIO SIG (2) LOGIC LOW REF LT BLU WIRE LT GRN WIRE LT GRN/DK BLU WIRE MEDIA DISC PLAYER MOST CONTROL MOST SERIAL DATA (+) NCA WIRE NETWORK BUS 10 POSITIVE VOLTAGE RADIO RADIO ANTENNA RDO FUSE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RH AUX AUDIO SIG (2) RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL DATA STEERING WHEEL AIR BAG COIL STR WHL CNTRL FUSE SYSTEM TELEPHONE VOICE SIG USB USB/OBS DET FUSE VIO WIRE W/ FRONT COMPARTMENT FLOOR CUSTOM CONSOLE W/ REAR SEAT ENTERTAINMENT W/O REAR SEAT ENTERTAINMENT WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE

1-VT 2-VT AMP FUSE AUDIO SIG + BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE CAMERA SIGNAL 2 CELL CELLULAR PHONE MICROPHONE CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM DISPLAY SIG + GMLAN SERIAL DATA (+) 9 GPS GPS ANT SIG GPS/CELL GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE (BEHIND GLOVE BOX) INFOTAINMENT INSTRUMENT PANEL JUNCTION BLOCK LOGIC LOW REF LT GRN/WHT WIRE LVDS MICROPHONE SIG MOST CONTROL MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER NCA WIRE NETWORK BUS 5 RED WIRE RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SER DATA TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE USB USB GY USB RECEPTACLE USB SERIAL DATA USB SRL DATA VOICE SIG W/ DIGITAL AUDIO SYSTEM W/ ONSTAR W/ ONSTAR W/O ONSTAR W/O ONSTAR WHT/BLU WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/LT GRN WIRE WHT/VIO WIRE X-BK YEL 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

1-VT 2-VT AUDIO SIG + BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE CAMERA SIGNAL 2 CELL CELLULAR MICROPHONE CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM GMLAN SERIAL DATA (+) 9 GPS GPS SIG GPS/CELL GRY/VIO WIRE GRY/YEL WIRE HUMAN MACHINE INTERFACE CONTROL MODULE (BEHIND GLOVE BOX) INFOTAINMENT DISPLAY SIG INSTRUMENT PANEL JUNCTION BLOCK LOGIC LOW REF LT GRN/WHT WIRE LVDS MICROPHONE SIG MOST CONTROL MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER NCA WIRE NETWORK BUS 5 RED WIRE RED/VIO WIRE SER DATA (+) 9 TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE USB USB GY USB RECEPTACLE USB SRL DATA VOICE SIG W/ DIGITAL AUDIO SYSTEM W/O REAR SEAT ENTERTAINMENT W/ REAR SEAT ENTERTAINMENT WHT/BLU WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/LT GRN WIRE WHT/VIO WIRE X-BK YEL WIRE

BATT POS VOLT BLK WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GRN/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LED DISABLE SIG LEFT MIDDLE FRONT PARKING ASSIST SENSOR LEFT MIDDLE REAR PARKING ASSIST SENSOR LEFT OUTER FRONT PARKING ASSIST SENSOR LEFT OUTER REAR PARKING ASSIST SENSOR LEFT/RIGHT/MID SENS LF CORNER PARKING CORNER SENS LF MIDDLE SENS SIG LO SPEED GMLAN SERIAL DATA CENTER DISPLAY 2 LOGIC LOW SPD GMLAN SERIAL DATA LR CORNER SENS SIG LR MIDDLE SENS SIG LT GRN WIRE PARKING ASSIST CONTROL MODULE PARKING ASSIST DISABLE IND PARKING ASSIST DISABLE SWITCH RED/GRN WIRE RF CORNER SENS SIG RF MIDDLE SENS SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT MIDDLE FRONT PARKING ASSIST SENSOR RIGHT MIDDLE REAR PARKING ASSIST SENSOR RIGHT OUTER FRONT PARKING ASSIST SENSOR RIGHT OUTER REAR PARKING ASSIST SENSOR RR CORNER SENS SIG RR MIDDLE SENS SIG SENS LOW REF SENS OBJECT CTRL SIG GND REAR PARK ASSIST DISABLE SIG USB/OBS DET FUSE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/GRY WIRE YEL WIRE YEL/DK BLU WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

ACCY/RUN CRNK FUSE BACKUP LAMP CTRL BASE BCK UP LAMP FUSE BLK WIRE BRN WIRE CAMERA LOW REF CAMERA SIG (-) CAMERA SIG 2 GROUND GRY/YEL WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED HOT W/ TRAILER BACKUP LAMPS RELAY ENERGIZED HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE LEFT INSTRUMENT PANEL FUSE BLOCK LT GRN/WHT WIRE NCA WIRE RADIO REAR VIEW CAMERA (LEFT OF TAILGATE HANDLE) RED WIRE RUN/CRANK IGN 1 VOLT UNDERHOOD FUSE BLOCK VIO/LT GRN WIRE WHT WIRE WHT/BLU WIRE YEL WIRE