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

AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/WHT WIRE BLU/GRY WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE FROM AUTOMATIC TRANSMISSION ASSEMBLY (DIAGRAM 1 OF 2) FTP SWITCH 1 VOLTAGE FTP SWITCH 3 VOLTAGE FTP SWITCH 4 VOLTAGE FTP SWITCH 5 VOLTAGE GMLAN SERIAL DATA - 1 GRN WIRE GRY WIRE INPUT SPEED SENSOR SIG ISS/OSS SUPPLY VOLTAGE NCA WIRE OUTPUT SPEED SENSOR SIG RED WIRE SHIFT TAP UP/ TAP DOWN SW SIG TOW/ HAUL MODE SWITCH TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION MANUAL SHIFT SWITCH TRANSMISSION OUTPUT SHAFT SPEED SENSOR TRANSMISSION RANGE SWITCH SIG A TRANSMISSION RANGE SWITCH SIG B TRANSMISSION RANGE SWITCH SIG C TRANSMISSION RANGE SWITCH SIG P TRANSMISSION SHIFT LEVER VIO/YEL WIRE WHT WIRE YEL 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

5 VOLT REF 6.0L AUTO OFF BATT POSITIVE VOLT BCM 4 FUSE BCM 6 FUSE BCM 7 FUSE BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BPP SENS LO REF BPP SENS SIG BRAKE PEDAL POSITION SENSOR BRN/GRN WIRE BRN/WHT WIRE CARGO LAMP SWITCH SIGNAL COIL SPLY VOLT COMPUTER DATA LINES SYSTEM DK BLU WIRE ENGINE CONTROL MODULE GMLAN DATA - (1) GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE HAZARD SW HAZARD SW LT TURN SIG HAZARD SW RT TURN SIG HAZARD SWITCH HEAD PARK HEADLAMP SW PARK LAMP SIG HEADLAMP SWITCH HOT AT ALL TIMES INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LAMP RELAY CONTROL LAMP SPLY VOLT LEFT DETECTION SIG LEFT LICENSE PLATE LAMP LICENSE PLATE LAMP LT GRN/YEL WIRE PARK LAMP RELAY CONTROL PUDDLE LAMP SPLY VOLT RED/BRN WIRE RED/DK BLU WIRE RED/GRY WIRE RED/LT GRN WIRE RED/WHT WIRE RIGHT DETECTION SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT LICENSE PLATE LAMP SENSOR LO REF SER DATA (-) (1) STOP LAMP SW SIGNAL VIO/BLU WIRE VIO/WHT WIRE VIO/YEL WIRE W/ REAR BUMPER W/O REAR BUMPER BASE EQUIPMENT EXCEPT BASE EQUIPMENT W/O REAR BUMPER WHT WIRE WHT/GRN WIRE YEL/BLK WIRE YEL/BLU WIRE

AUX AUDIO COMM SIG AUX AUDIO SCREEN (2) AUX DETECTION SIG AUXILIARY AUDIO INPUT BK AM/FM ANT SIG BLK WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE CAMERA SIG 2 COAX COMPUTER DATA LINES SYSTEM GMLAN SERIAL DATA GRN WIRE GROUND GRY WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE GY LVDS DISPLAY SIG HOT AT ALL TIMES LH AUX AUDIO SIG (2) LOGIC LOW REF LT BLU WIRE LT GRN WIRE LT GRN/DK BLU WIRE LVDS MEDIA DISC PLAYER (W/O REAR SEAT ENTERTAINMENT) MOST CONTROL MOST SERIAL DATA (+) NAVIGATION SYSTEM NCA WIRE NETWORK BUS 10 POSITIVE VOLTAGE RADIO RADIO ANTENNA RDO FUSE RED/VIO WIRE RH AUX AUDIO SIG (2) RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL DATA TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TELEPHONE VOICE SIG USB USB GY USB USB SERIAL DATA USB/OBS DET FUSE VIO WIRE VOICE SIG WHT/BLU WIRE WHT/GRN WIRE WHT/LT GRN WIRE WHT/VIO WIRE YEL WIRE

AUDIO SIG + BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/LT GRN WIRE COMPUTER DATA LINES SYSTEM DIM SWITCH SIG DISPLAY SIGNAL (-) DOWN SIGNAL GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/YEL WIRE INFO DISPLAY MODULE KEYPAD CONTROL LCD DIMMING SIGNAL LEFT FRONT DOOR SPEAKER LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR TRIM PANEL SPEAKER LOW REF LVDS MICROPHONE SIG RADIO CONTROLS RADIO ON SIGNAL REGULATED CONTROL REQUEST SIGNAL RESET SIGNAL RIGHT FRONT DOOR SPEAKER RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR TRIM PANEL DOOR SPEAKER SER DATA (+) 9 SWITCH DIM SIGNAL SWITCH SIGNAL 2 TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE UP SIGNAL VIO/GRY WIRE VOICE LOW REF VOICE SIGNAL W/ ENHANCED AUDIO SPEAKER SYSTEM WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE

AM/FM BK AUX AUDIO COMM SIG AUX AUDIO SCREEN (2) AUX DETECTION SIG AUXILIARY AUDIO INPUT BACKUP LAMP CTRL BATT POS VOLT BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE CAMERA LOW REF CAMERA SIG 2 COAX COMPUTER DATA LINES SYSTEM DISPLAY SIG + GRN WIRE GROUND GROUND DISTRIBUTION GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INFOTAINMENT INSTRUMENT PANEL JUNCTION BLOCK IPC FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LH AUX AUDIO SIG (2) LOGIC LOW REF LT BLU WIRE LT GRN WIRE LT GRN/WHT WIRE LVDS MOST CONTROL MOST SERIAL DATA (+) NAVIGATION SYSTEM NCA WIRE POWER DISTRIBUTION SYSTEM RADIO RADIO ANTENNA RAP RLY COIL CTRL REAR VIEW CAMERA CIRCUIT RED/GRY WIRE RED/VIO WIRE RH AUX AUDIO SIG (2) SERIAL DATA BUS 5 SYSTEM TELEPHONE VOICE SIG USB VIO WIRE W/ FRONT COMPARTMENT FLOOR CUSTOM CONSOLE WHT/BLU WIRE WHT/LT GRN WIRE WHT/VIO WIRE XM/HD CU YEL WIRE

ASSIST STEP CONTROL MODULE BATT POS VOLT BLK WIRE BLU WIRE BLU/YEL WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DISABLE SIG DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY ELC RNG BDS FUSE GRN WIRE GRN/RED WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL MULTIFUNCTION SWITCH LEFT ASSIST STEP LEFT ASSIST STEP KICK SWITCH LH 5 VOLT REF LH LO REF LH SIG (-) LO REF LO SPEED GMLAN SERIAL DATA LOGIC LOW SPEED SERIAL DATA 2 MTR LH CTRL EXTEND MTR LH CTRL RETRACT MTR RH CTRL EXTEND MTR RH CTRL RETRACT NCA WIRE RED/YEL WIRE RH 5 VOLT REF RH LO REF RH SIG (-) RIGHT ASSIST STEP RIGHT ASSIST STEP KICK SWITCH SW SIG LH SW SIG RH UNDERHOOD FUSE BLOCK VIO WIRE VIO/RED WIRE WHT/BRN WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE

4.3L/ 5.3L 6.2L 6.6L 6.0L 6.2L, 6.6L 4.3L, 5.3L, 6.0L AUTOMATIC TRANSMISSION ASSEMBLY (4.3L, 5.3L, 6.0L) BLK/BRN WIRE BLK/GRN WIRE BLU/YEL WIRE BPP SENS LO REF BPP SENS SIG BRAKE PEDAL POSITION SENSOR (BEHIND BRAKE PEDAL ASSEMBLY) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DK BLU/YEL WIRE ENGINE CONTROL MODULE EXCEPT BASE EQUIPMENT GMLAN DATA BUS (+) 1 GRY WIRE GRY/RED WIRE INSTRUMENT PANEL JUNCTION BLOCK PARK/NEUTRAL SIG TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH WHT WIRE WHT/GRN WIRE WHT/GRY WIRE

2 HI IND CTRL 4 HI IND CTRL 4 LO IND CTRL ACCY WAKEUP SERIAL DATA ACCY/ RUN CRNK FUSE AWD IND CTRL BATT + BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DRIVE SW SIG DRIVER INFORMATION CENTER ASSEMBLY FRONT AXLE ACT CTRL FRONT AXLE ENGAGEMENT ACTUATOR FT AXLE ACTUATOR CTRL GEAR POSITION SENSOR GMLAN SERIAL DATA - 1 GRN/BLK WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INCREMENTAL ENCDR SENS RTN INCREMENTAL ENCDR SENS SPLY INCRMT ENCODER DIR SIG INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC MTR CLOCKWISE CTRL MTR COUNTER CLOCKWISE CTRL NEUTRAL IND CTRL POWER DISTRIBUTION SYSTEM RED/GRY WIRE ROTARY POS IMPULSE SIG ROTARY POS SENS RTN ROTARY POS SENS SIG RUN/CRANK IGN 1 VOLT SERIAL DATA (-) (1) TRANS IGN FUSE TRANSFER CASE CONTROL MODULE TRANSFER CASE LOCK SOL CTRL UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHEEL LOCK IND WHT WIRE WHT/GRN WIRE WHT/LT GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

BATT POS VOLT BATT POSITIVE VOLT BK USB BK USB USB BLK WIRE BLK/WHT WIRE BLU/VIO WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DIMMING CTRL DISPLAY SIG + ENABLE SIG ENTERTAINMENT REMOTE ENTERTAINMENT REMOTE ENABLE SIG GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE GRY/VIO WIRE HEADPHONE COMMON SIG HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INADVERTENT PWR CTRL INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT PANEL JUNCTION BLOCK INTERIOR LAMP CTRL LED AMBIENT LIGHTING CTRL 2 LOGIC AUDIO/VIDEO INPUT ADAPTER LOW SPEED GMLAN SERIAL DATA LR SEAT AUDIO HEADPHONE SIG LVDS LVDS GY INFOTAINMENT DISPLAY SIG LVDS LVDS MEDIA DISC PLAYER MOST CONTROL MOST SERIAL DATA (+) NCA WIRE RDO FUSE REAR AUDIO LOW REF RED/GRN WIRE RED/VIO WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RR SEAT AUDIO HEADPHONE SIG RSE FUSE USB VIO/GRN WIRE W/ REAR SEAT ENTERTAINMENT W/ REAR SEAT ENTERTAINMENT W/O REAR SEAT ENTERTAINMENT WH INFOTAINMENT DISPLAY SIG WH LVDS WHT/BRN WIRE WHT/LT GRN WIRE WHT/VIO WIRE Y-BK USB YEL WIRE