GMC Sierra III facelift (2015-2018) yel/wht Wiring diagrams

12 VOLT REFERENCE A/C CMPRSR MDL/BATT RVC FUSE ACCESSORY VOLT ACCESSORY WAKEUP SER DATA ANTI-LOCK BRAKES SYSTEM ANTI-THEFT SYSTEM BATT POSITIVE VOLT BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN/GRN WIRE BRN/GRY WIRE BRN/LT GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COURTESY LAMP SW SIG CRUISE CONTROL SYSTEM CRUISE CONTROL SYSTEM WIPER/WASHER SYSTEM CTRL SW SIG CURRENT SENS CTRL CURRENT SENS SIG DIMMER SW HIGH BEAM SIG DK BLU WIRE DOOR LOCK ACTUATOR UNLOCK CTRL DOOR LOCK CONTROL DOOR LOCK CTRL 2 DOOR LOCK KEY SW UNLOCK SIG DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT, INTERIOR LIGHTS SYSTEMS DRIVER DOOR LOCK MTR STATUS ELECTRONIC MUFFLERS SYSTEM EXHAUST BRAKE SW CTRL EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS GAP UP/DOWN SW SIG GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HAZARD SW LEFT TURN SIG HAZARD SWITCH RIGHT TURN SIG HDLP SW FLASH TO PASS SIG HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HORNS SYSTEM HI SPEED GMLAN SER DATA (-) 1 HOOD AJAR SW SIG HORN SW SIG HOT AT ALL TIMES IGNITION KEY RESISTOR SIG IGNITION SWITCH IMMOBILIZER RETURN IMMOBILIZER SUPPLY VOLT INADVERTENT POWER CTRL INTERIOR LP CTRL KEY-IN IGNITION SWITCH LED AMBIENT LIGHTING CTRL LED BACK LT DIMMING CTRL LEFT FRONT DOOR AJAR SW SIG WIRELESS CHARGING SYSTEM CHARGE IND CTRL LF DRL CTRL LH DETECTION SIG LH HDLMP LOW BEAM CTRL LIN BUS 3 LIN INTERCONNECT NTWRK BUS 2 LIN INTERCONNECT NTWRK BUS 3 LOCK CTRL LOCK SW SIG 16 17 TRAILER BRAKE APPLY SIG LOW REFERENCE LOW SPEED GMLAN SERIAL DATA LT GRN WIRE LT GRN/VIO WIRE LT GRN/YEL WIRE MOTOR STATUS SIG NETWORK BUS 11 NETWORK BUS 5 OFF OFF/RUN/CRANK VOLT PASS SEAT VENT MTR CTRL 1 POWER DISTRIBUTION SYSTEM PUDDLE LAMP CTRL RAP RELAY COIL CTRL REAR LICENSE LP CTRL RED/YEL WIRE RELAY COIL SUPPLY VOLT RF DOOR AJAR SW SIG RF TURN SIG LP CTRL RH DETECTION SIG RH HDLMP LOW BEAM CTRL RR LK MTR STATUS SIG RR TURN SIG LP CTRL RUN WIRE RUN/CRANK IGNITION 1 VOLT RUN/CRANK RELAY COIL CTRL SEATS SYSTEM SELECT SW PERFORMANCE SIG SERIAL DATA COMM ENABLE SET/COAST/RESUME/ ACCELERATE SW SIG SHIFT INTERLOCK SOLENOID CTRL SHIFT INTERLOCK SYSTEM SIG GROUND STANDING LAMP RLY CTRL STARTING/CHARGING SYSTEM STOP LP RLY COIL CTRL TAP UP/TAP DOWN SW SIG TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK UNLOCK CTRL VIO/BLK WIRE VIO/BLU WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WASHER RLY CTRL WINDSHIELD WASHER SW SIG WINDSHIELD WIPER SW LOW SIG WIPER MTR PARK SW SIG WIPER SW HIGH SIG WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM POWER DISTRIBUTION SYSTEM YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE YEL/WHT WIRE

12 VOLT REF 5 VOLT REF 6.0L 6.6L TURBO DIESEL EXCEPT 6.6L TURBO DIESEL 4.3L, 5.3L, 6.2L 6.0L ACCEL PEDAL POS LOW REF 1 ACCEL PEDAL POS SIG 1 ACCELERATOR PEDAL POSITION SENSOR ACCL PEDAL POS 5 VOLT REF 1 ACCL PEDAL POS 5 VOLT REF 2 ACCL PEDAL POS LOW REF 2 ACCL PEDAL POS SIG 2 ADAP CRUISE CTRL UP DWN SW SIG BCM 1 FUSE BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRN WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BPP SENS 5 CTRL BPP SENS LOW REF BPP SENS SIG BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CTRL SET/COAST/ RES/ACC SW SIG CRUISE/ETC/TCC/BRK SIG DK BLU WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE ENGINE CONTROL MODULE GMLAN DATA - (1) GRY/GRN WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL FUSE BLOCK LOW REF LT GRN/WHT WIRE RED/WHT WIRE RUN/CRANK IGNITION 1 VOLT SENS LOW REF SIG GND STOP LAMP SW SIG THRTL ACTR CTRL CLOSE THRTL ACTR CTRL OPEN THRTL POS SENS 5 VOLT REF THRTL POS SENS SIG 1 THRTL POS SENS SIG 2 VEHICLE SPEED SENSOR VIO/LT GRN WIRE VIO/WHT WIRE VSS LOW REF VSS SIG WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

ACCY/RUN CRNK FUSE AIR BAG/ INFO FUSE BACKUP LAMP SUPPLY VOLT BATT POSITIVE VOLT BLK WIRE BLK/YEL WIRE BLU/GRN WIRE BRN WIRE BRN/WHT WIRE COMP SW COMPUTER DATA LINES SYSTEM DK BLU WIRE DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR EMERGENCY SWITCH GMLAN SRL DATA (-) 1 GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GROUND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSIDE REAR VIEW MIRROR INSTRUMENT PANEL JUNCTION BLOCK KEYPAD CTRL KEYPAD GREEN LED KEYPAD GREEN LED IND KEYPAD RED LED IND WIRE KEYPAD RED LED WIRE KEYPAD SIG KEYPAD SIGNAL IND LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC LOW REF LT GRN/BLK WIRE LT GRN/DK BLU WIRE LT GRN/WHT WIRE MIR SIG MIRROR DIMMING ONSTAR SWITCH ORG/ WIRE PHONE SWITCH RED WIRE RED/DK BLU WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RUN/CRANK IGN 1 VOLTAGE TELEMATICS BUTTON ASSEMBLY TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TEMP SW VIO WIRE VIO/GRN WIRE W/ ONSTAR WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BRN WIRE YEL/VIO WIRE YEL/WHT WIRE

BATTERY POSITIVE VOLT BLK WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/YEL WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/RED WIRE DRIVER INFORMATION CENTER DISPLAY ESC ELC EXH FUSE GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT FRONT SHOCK ABSORBER ASSEMBLY LEFT FRONT SUSPENSION POSITION SENSOR LEFT REAR SHOCK ABSORBER ACTUATOR LEFT REAR SHOCK ABSORBER ASSEMBLY LEFT REAR SUSPENSION POSITION SENSOR LF DECREASE DAMPING CTRL LF INCREASE DAMPING CTRL LF STRUT POS SENS LOW REF LF STRUT SENS SIG LO SPD GMLAN SERIAL DATA 2 LOGIC LR STRUT MOTOR DECREASE LR STRUT MOTOR INCREASE LR STRUT SENS LOW REF LR STRUT SENS SIG LT GRN/GRY WIRE LT GRN/RED WIRE LT GRN/WHT WIRE NCA WIRE RED/LT GRN WIRE RF DECREASE DAMPING CTRL RF INCREASE DAMPING CTRL RF STRUT SENS LOW REF RF STRUT SENS SIG RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT FRONT SHOCK ABSORBER ASSEMBLY RIGHT FRONT SUSPENSION POSITION SENSOR RIGHT REAR SHOCK ABSORBER ACTUATOR RIGHT REAR SHOCK ABSORBER ASSEMBLY RIGHT REAR SUSPENSION POSITION SENSOR RR STRUT MOTOR DECREASE RR STRUT MOTOR INCREASE RR STRUT POS SENS SIG RR STRUT SENS LOW REF SER DATA COMM ENABLE SUSPENSION CONTROL MODULE UNDERHOOD FUSE BLOCK VIO WIRE WHT WIRE WHT/BLK WIRE WHT/DK BLU WIRE WHT/GRY WIRE WHT/LT GRN WIRE YEL WIRE YEL/RED WIRE YEL/WHT WIRE

BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE COMMON CTRL COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DRIVER SEAT MEMORY SWITCH EXIT GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/GRN WIRE HIGH REF HOT AT ALL TIMES LEFT (-) RIGHT (+) SIG LOGIC LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/WHT WIRE MTR FOLD IN CTRL MTR FOLD OUT CTRL NETWORK BUS 8 ORG/BLK WIRE PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR CARGO LAMP PASSENGER OUTSIDE REAR VIEW MIRROR COURTESY LAMP PASSENGER OUTSIDE REAR VIEW MIRROR FOLDING MOTOR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER OUTSIDE REAR VIEW MIRROR MOTOR PASSENGER WINDOW SWITCH POSITIVE VOLT RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE RETURN TURN SIGNAL REPEATER LAMP RIGHT (+) LEFT (-) CTRL RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT MIDDLE SIDE MARKER LAMP RT DR WNDW MTR FUSE SEAT MEMORY CONTROL MODULE SET SIG SET- SWITCH SIG 1 UP (+) DOWN (-) CTRL UP DOWN SIG VIO/WHT WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT 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

AUX 1 AUX 2- AUX 3 AUX 4 BASE EQUIPMENT BLK WIRE BLU/GRN WIRE CONFIGURABLE PROVISION RELAY 1 CONFIGURABLE PROVISION RELAY 2 CONFIGURABLE PROVISION RELAY 3 CONFIGURABLE PROVISION RELAY 4 EXCEPT BASE EQUIPMENT FROM ENGINE CONTROLS IGNITION RELAY (DIAGRAM 2 OF 7) FROM IGNITION MAIN RELAY (DIAGRAM 2 OF 7) GRN/GRY WIRE INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH NOT USED NOT USED RED/LT GRN WIRE RED/WHT WIRE UPFTR 1 FUSE UPFTR 2 FUSE UPFTR 3 FUSE UPFTR 4 FUSE WHT WIRE WHT/BLU WIRE YEL/WHT WIRE

5 VOLT REF 6.2L BASE EQUIPMENT EXCEPT BASE EQUIPMENT BCM 6 FUSE BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DATA BUS 1 DK BLU WIRE DLIS FUSE GMLAN SERIAL GRY/RED WIRE HI SPEED HI SPEED GMLAN SERIAL DATA (-) 1 HOT AT ALL TIMES IGNITION SWITCH INSTRUMENT PANEL JUNCTION BLOCK KEY-IN SWITCH LEFT INSTRUMENT PANEL FUSE BLOCK LOW REF OFF OFF RUN/CRANK VOLT PPL/BLK WIRE RED/BLU WIRE RED/DK BLU WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RUN WIRE SENS LOW REF SERIAL DATA BUS (-) IMS MODE SW RETURN SERIAL DATA BUS- SHIFT INTERLOCK SOL CTRL STOP LAMP SW SIG TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION INTERNAL MODE SWITCH AUTOMATIC TRANSMISSION ASSEMBLY TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE YEL/WHT WIRE

4.3L, 6.2L, 5.3L 6.6L TURBO DIESEL 6.0L BLK WIRE COMPUTER DATA LINES SYSTEM DATA 1 (+) DK BLU WIRE ENGINE CONTROL MODULE FRONT AXLE ACT CTRL FRONT AXLE ENGAGEMENT ACTUATOR GRY/BLK WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT J102 (6.6L TURBO DIESEL) J123 (6.6L TURBO DIESEL) J124 (EXCEPT 6.6L TURBO DIESEL) LOCK IND LOGIC LOW SIG SERIAL TRANS IGN FUSE TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD FUSE BLOCK VIO/BLK WIRE WHT WIRE YEL/WHT 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