GMC Sierra III (2013-2015) nca Wiring diagrams

18 25 COURTESY LP SPLY VOLT PPL DEFEAT SW 2 10 B+ SERIAL DATA ASSEMBLY (CREW CAB) (REAR OF RIGHT REAR DOOR) BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) CENTER HIGH MOUNTED STOP LAMP (CHMSL) COMPUTER DATA LINES SYSTEM DEF SW DIM FUSE 7 DK BLU/WHT WIRE DK GRN WIRE DOME SW FRONT DOME/READING LAMPS GRY WIRE GRY/BLK WIRE HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, IS LPS FUSE 17 LATCH ASSEMBLY LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT REAR DOOR LATCH ASSEMBLY (CREW CAB: REAR OF LEFT REAR DOOR) LEFT SUNSHADE (IF EQUIPPED) LEFT VANITY MIRROR LAMP LF DR AJAR SW SIG DR DOOR RF DR AJAR 10 20 8 14 15 LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE PASSENGER DOOR LATCH ASSEMBLY (IN REAR OF PASSENGER'S DOOR) PPL 9 12 READING DOME LAMPS LAMPS READING LAMPS REAR DOME/ READING LAMPS (CREW CAB) RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT REAR DOOR LATCH RIGHT SUNSHADE (IF EQUIPPED) RIGHT VANITY MIRROR LAMP SW SIG RR DR AJAR SW SIG LR DR AJAR SW SIG 5 1 LP CTRL SPLY VOLT TAN/WHT WIRE VOLT W/ COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE W/ ELECTRIC DOOR LOCK W/ POWER WINDOWS W/O COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE W/O ELECTRIC DOOR LOCK WHT/BLK WIRE

2 10 B+ SERIAL DATA 5 13 9 LOW REF SW SIG SER DATA 6 4 GND B+ 9 12 PPL 9 5 4 13 SER DATA LOW REF SW SIG SW SIG ASSEMBLY (CREW CAB) (REAR OF RIGHT REAR DOOR) BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) CENTER HIGH MOUNTED STOP LAMP (CHMSL) COMPUTER DATA LINES SYSTEM COURTESY LP SPLY VOLT COURTESY LP 18 25 SPLY VOLT PPL DEFEAT SW DDM FUSE 4 DEF SW DIM FUSE 7 DK BLU/WHT WIRE DK GRN WIRE DOME LAMP DOME SW DRIVER DOOR LATCH ASSEMBLY (IN REAR OF DRIVER'S DOOR) DRIVER DOOR LOCK/WINDOW SWITCH FRONT DOME/READING LAMPS GRY WIRE GRY/BLK WIRE HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, IS LPS FUSE 17 LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT REAR DOOR LATCH ASSEMBLY (CREW CAB: REAR OF LEFT REAR DOOR) LEFT SUNSHADE (IF EQUIPPED) LEFT VANITY MIRROR LAMP LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE PASSENGER DOOR LATCH ASSEMBLY (IN REAR OF PASSENGER'S FRONT DOOR) PASSENGER DOOR LOCK/WINDOW SWITCH PDM FUSE 9 POWER DISTRIBUTION SYSTEM READING LAMPS REAR DOME/ READING LAMPS (CREW CAB) RED/WHT WIRE RIGHT REAR DOOR LATCH RIGHT SUNSHADE (IF EQUIPPED) RIGHT VANITY MIRROR LAMP RR DR AJAR 14 15 SW SIG LR DR AJAR SW SIG 5 1 COURTESY LP CTRL VOLT TAN/WHT WIRE W/ COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE W/ INDIVIDUAL FRONT SEAT, POWER MIRROR W/O COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE WHT/BLK WIRE YEL WIRE

AUTOMATIC A/C MANUAL A/C 15 10 BLK WIRE BLOWER MOTOR CONTROL MODULE BREAKOUT) CENTER CONSOLE ACCESSORY POWER OUTLET CENTER CONSOLE COMPARTMENT ACCESSORY POWER OUTLET CENTER HIGH MOUNTED STOP LAMP (CHMSL) CREW CAB DATA LINK CONNECTOR (DLC) DRIVER INFORMATION CENTER (DIC) SWITCH ELECTRONIC ADJUSTABLE PEDALS PCB RELAY ELECTRONIC COMPASS MODULE FROM FROM SPLICE HORN SWITCH HVAC CONTROL MODULE I/P 2 ACCESSORY POWER OUTLET INSIDE REARVIEW MIRROR (ISRVM) LOGIC LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT STEERING WHEEL CONTROL SWITCH MIDDLE LEFT FRONT ROOF FRONT CLEARANCE OUTER LAMP ROOF CLEARANCE LAMP NCA WIRE PARK ENABLE PCB RELAY PASSENGER OUTSIDE REARVIEW MIRROR PASSENGER WINDOW SWITCH PASSENGER DOOR LOCK/ WINDOW SWITCH REAR DOME READING LAMPS RIGHT FRONT OUTER ROOF CLEARANCE LAMP RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT STEERING WHEEL CONTROL SWITCH RIGHT SUNSHADE (IF EQUIPPED) SUNROOF MODULE SUNROOF SWITCH W/ ACCESSORY STEERING CONTROL W/ ACCESSORY STEERING CONTROL, W/ ODOMETER SECURITY WIRING PROVISIONS W/ BODY BUILDER EMERGENCY LAMP W/ COMFORT, DECOR LEVEL 3 W/ LUXURY EDITION W/ MANUAL FOLDING MIRROR, HEATED MIRROR W/ MANUAL FOLDING MIRROR, HEATED MIRROR (IN RIGHT FRONT DOOR HARNESS) W/ ROOF MARKER LAMP W/ ROOF MOUNTED LAMP PROVISIONS W/ STEERING WHEEL HEATER, ACCESSORY STEERING CONTROL, AUTOMATIC CRUISE CONTROL W/ STEERING WHEEL HEATER, AUTOMATIC CRUISE CONTROL W/ SUNROOF MOUNTED/SLIDING LAMP PROVISION W/ SUNROOF MOUNTED/SLIDING LAMP PROVISION W/O ROOF MARKER LAMP W/ SUNROOF SLIDING W/ WRECKER EMERGENCY LAMP W/O STEERING WHEEL HEATER W/O STEERING WHEEL HEATER, ACCESSORY STEERING CONTROL, AUTOMATIC CRUISE CONTROL WHT WIRE

AMBIENT LIGHT SENSOR AMBIENT LIGHT/ SUNLOAD SENSOR AUTOMATIC A/C AUTOMATIC A/C MANUAL A/C 8 3 AUTOMATIC TRANSMISSION SHIFT LEVER BLK WIRE BODY CONTROL MODULE (BCM) BRAKE FLUID LEVEL SWITCH DATA LINK CONNECTOR DRIVER DOOR LATCH DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER DRIVER DOOR DOOR LOCK LATCH SWITCH DRIVER SEAT BACK VENTILATION HEATING, COOLING MODULE DRIVER SEAT CUSHION VENTILATION HEATING, COOLING MODULE DRIVER WINDOW SWITCH FRONT DOOR LOCK DIODE FRONT DOOR UNLOCK DIODE HEADLAMP, PANEL I/P DIMMER MULTI-FUNCTION SWITCH SWITCH HEATER HVAC CONTROL MODULE INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) MANUAL A/C NCA WIRE PASSENGER DOOR LATCH PASSENGER DOOR LOCK SWITCH PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT BACK VENTILATION HEATING, COOLING MODULE PASSENGER SEAT CUSHION VENTILATION HEATING, COOLING MODULE PASSENGER SEAT LUMBAR SWITCH POWER WINDOW REAR DOOR LOCK DIODE REAR DOOR UNLOCK DIODE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) THEFT DETERRENT MODULE TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ FRONT HEATED/ COOLING SEATS W/ NON BUCKET FRONT INDIVIDUAL SEAT W/O W/O NON BUCKET FRONT INDIVIDUAL SEAT W/O NON BUCKET, FRONT INDIVIDUAL SEAT, W/ COMFORT, DECOR LEVEL 3 W/O POWER DOOR LOCK CONTROL W/O POWER W/ POWER DOOR LOCK DOOR LOCK CONTROL CONTROL WHT WIRE WINDSHIELD WASHER SOLVENT WINDSHIELD WIPER MOTOR

6.0L (VING) BACKUP ALARM BLK WIRE CHEVROLET CHIME MODULE DIESEL DIESEL, W/ 31 SERIES, W/O REAR AUXILIARY FUEL TANK DIGITAL VIDEO DISC (DVD) CONTROL MODULE DRIVER HEATED SEAT SWITCH ELECTRONIC BRAKE CONTROL MODULE (EBCM) EXCEPT 6.0L (VING) FRONT FUEL PUMP, SENDER ASSEMBLY FUEL PUMP FUEL PUMP/ FUEL PUMP TRAILER BRAKE FLOW CONTROL CONTROL MODULE MODULE GAS GMC GRD GRD GRD HEATED SEAT CONTROL MODULE INFRARED TRANSMITTER LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOWER RIGHT TAIL/ STOP, TURN SIGNAL LAMP NCA WIRE PASSENGER HEATED RADIO REAR FUEL PUMP, SENDER ASSEMBLY REAR LAMPS JUNCTION BLOCK (INSIDE OF LEFT REAR FRAME RAIL) RIGHT BACKUP LAMP RIGHT RIGHT REAR BACKUP SIDE MARKER LAMP LAMP SEAT SWITCH SECONDARY FUEL PUMP RELAY TO LEFT I/P JUNCTION BLOCK (DIAGRAM 3 OF 6) TRAILER CONNECTOR UPPER RIGHT TAIL/ STOP, TURN SIGNAL LAMP VIDEO DISPLAY W/ ACTIVE BRAKE, W/O 10 SERIES W/ CAMPER, W/ CAMPER, W/O CAMPER, TRAILER, BACKUP TRAILER, BACKUP ALARM ALARM W/ DUAL FRONT DOOR MOUNTED, 4 SPEAKER SYSTEM W/ LUXURY EDITION W/O LUXURY EDITION, W/ REAR SEAT ENTERTAINMENT PACKAGE W/ LUXURY EDITION, REAR SEAT ENTERTAINMENT PACKAGE W/ PERFORMANCE ENHANCED AUDIO W/ REAR AUXILIARY FUEL TANK W/ SPO DVD W/ SPO HEATED SEATS W/O CAMPER, W/O LUXURY EDITION W/O PERFORMANCE ENHANCED AUDIO W/O RADIO W/O REAR AUXILIARY FUEL TANK 6.0L (VIN G) W/O REAR SEAT RADIO, LUXURY EDITION W/O UYS W/ UYS 8 38 W/O W/ INTEGRATED INTEGRATED TRAILER TRAILER BRAKE BRAKE WHT WIRE

BLK WIRE BLK/WHT WIRE BREAKOUT) W/ NON-BUCKET FRONT INDIVIDUAL SEAT CENTER CENTER SEAT CONSOLE ACCESSORY ACCESSORY POWER POWER OUTLET OUTLET CHEVROLET CONSOLE COMPARTMENT ACCESSORY POWER OUTLET CREW CAB CREW CAB/ EXTENDED CAB W/ PERFORMANCE ENHANCED AUDIO, FRONT COMPARTMENT CONSOLE EXCEPT CREW CAB EXCEPT REGULAR REGULAR CAB CAB FROM FRONT PASSENGER/CHILD PRESENCE DETECTOR GMC GRD GRD GRD HEATED SEAT CUSHION ELEMENT INFLATABLE RESTRAINT PASSENGER PRESENCE SYSTEM (PPS) MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) LEFT FRONT REAR FENDER CLEARANCE LAMP LEFT LEFT REAR SIDE BACKUP MARKER LAMP LAMP LEFT LICENSE LAMP LEFT REAR LEFT REAR WINDOW DOOR LATCH SWITCH LEFT REAR RIGHT FRONT MOST FENDER REAR FENDER CLEARANCE CLEARANCE LAMP LAMP LOWER LEFT TAIL/ STOP, TURN SIGNAL LAMP LOWER LEFT UPPER LEFT TAIL/ TAIL/ STOP, TURN STOP, TURN SIGNAL LAMP SIGNAL LAMP MEMORY SEAT MODULE (MSM) NCA WIRE PASSENGER SEAT BELT BUCKLE REAR LAMPS JUNCTION BLOCK (INSIDE OF LEFT REAR FRAME RAIL) REAR OBJECT SENSOR CONTROL MODULE REAR WINDOW DEFOGGER GRID RIGHT LICENSE LAMP RIGHT REAR DOOR LATCH RIGHT REAR MOST FENDER CLEARANCE TAILGATE MARKER LAMP LAMP RIGHT REAR WINDOW SWITCH TRAILER BRAKE CONTROL RELAY TRAILER BRAKE CONTROL MODULE UPPER LEFT LEFT TAIL/ BACKUP STOP, TURN LAMP SIGNAL LAMP W/ FULL FEATURE CENTER SEAT W/ MULTI- DIRECTIONAL PASSENGER POWER SEAT ADJUSTER W/ NON BUCKET FRONT INDIVIDUAL SEAT W/ POWER WINDOWS, FULL FEATURE CENTER SEAT W/ REAR DEFOGGER W/ REAR DUAL WHEEL W/ TRAILER W/O TRAILER BRAKE BRAKE W/ACTIVE BRAKE W/O ACTIVE BRAKE W/O MULTI- DIRECTIONAL PASSENGER POWER SEAT ADJUSTER W/O NON BUCKET FRONT INDIVIDUAL SEAT W/O POWER WINDOWS, FULL FEATURE CENTER SEAT W/O REAR DEFOGGER W/O REAR PARKING ASSIST, LOW TIRE PRESSURE, REMOTE ENTRY WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 367 368 2099 L AUD+ R AUD+ DRAIN WIRE 1999 1946 659 LR AUD- RR AUD- LOW REF AMP FUSE 41 FUSE 38 ANTENNA AUD SIG BLK WIRE BLUETOOTH WIRELESS COMMUNI- CATION INTERFACE ANTENNA BLUNT CUT) BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE (IN OVERHEAD CONSOLE) CELLULAR/ NAVIGATION ANTENNA CELLULAR/ NAVIGATION, DIGITAL RADIO ANTENNA CELLULAR/NAVIGATION, DIGITAL RADIO ANTENNA (LEFT FRONT OF ROOF) COAX COAX BK COAX COAX COMPUTER DATA LINES SYSTEM CUT) DIGITAL AUDIO SYSTEM DIGITAL RADIO RECEIVER (IF EQUIPPED) (BEHIND RIGHT END OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE DRAIN WIRE 6 7 8 9 10 11 12 13 14 REM SIG LED CNTRL EXCEPT 6.6L 6.6L W/O ONSTAR W/ ONSTAR W/O S-BAND, TRAFFIC 2 3 4 5 GMLAN GND LF AUD- RF AUD- DRAIN WIRE GREEN LED GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFO FUSE 22 KEYPAD SIG LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOW REF LT BLU/BLK WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE RADIO RDO FUSE 42 FUSE 39 RED LED WIRE RED/WHT WIRE SHIELD SUPPLY TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) USB CABLE BK USB CABLE USB RECEPTACLE (IF EQUIPPED) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (BEHIND CENTER OF DASH) VOICE SIG W/ ONSTAR W/ S-BAND, TRAFFIC DIGITAL AUDIO SYSTEM WHT WIRE YEL WIRE YEL/BLK WIRE

AMPL CNTRL BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GMLAN GREEN LIGHT GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFRARED REF INFRARED V L INFRARED L SUBWFR - LED GND SIG LED SIG LOGIC INSIDE REARVIEW MIRROR (ISRVM) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LF AUD + LF SPK - LIGHT LR AUD + LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ONSTAR BUTTON ASSEMBLY ONSTAR EMERGENCY SWITCH SWITCH ORG/ WIRE ORG/BLK WIRE PNK WIRE PPL/WHT WIRE R INFRARED R SUBWFR + REAR SEAT AUDIO (RSA) CONTROL RED WIRE RED/WHT WIRE REM ENABLE RF AUD + RF SPK - RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RR AUD - RSE FUSE 19 SUBWOOFER SPEAKER TAN WIRE TELEPHONE SWITCH W/ REAR SEAT ENTERTAINMENT PACKAGE W/O REAR SEAT ENTERTAINMENT PACKAGE WHT WIRE YEL WIRE YEL/BLK WIRE

17 6 PNK 12 VOLT SW SIG WIRE 2500 2501 COMPUTER DATA LINES 8 9 DATA BUS (+) DATA BUS (-) AUD LOW REF AUDIO/VIDEO ADAPTER AUX VID HI BEHIND STEERING WHEEL) BLK WIRE BLUNT CUT) BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CREW CAB CRUISE CONTROL SYSTEM CUT SHIELD) DK BLU WIRE DK GRN WIRE DRAIN WIRE DVD DVD COMM ENABLE SIG GRY WIRE I/P FUSE BLOCK (LEFT SIDE OF DASH, INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INFRARED TRANSMITTER L AUD SIG L AUX AUDIO L DVD+ LEFT FRONT SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR SPEAKER LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE R AUD SIG R AUX AUDIO R DVD+ RADIO RED/WHT WIRE RIGHT FRONT SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT REAR SPEAKER RIGHT STEERING WHEEL CONTROL SWITCH SEEK SOURCE NEXT DOWN SHIELD SIGNAL SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM VIDEO CNTRL VIDEO DISPLAY VIDEO SIG VOICE VOLUME REC DOWN VOLT VOLUME SEEK UP UP W/ AUTOMATIC CRUISE CONTROL/ ACCESSORY STEERING WHEEL CONTROL W/O AUTOMATIC CRUISE CONTROL W/ AUTOMATIC CRUISE CONTROL WHT WIRE WHT/BLK WIRE YEL WIRE

5060 2011 2099 1546 1947 1946 1999 COMPUTER DATA LINES SYSTEM AMP CTRL GND AMP FUSE 41 FUSE 38 ANTENNA BLK WIRE BRN WIRE BRN/WHT WIRE COAX BK DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EMERGENCY SWITCH EXCEPT 6.6L 6.6L GMLAN DRAIN WIRE DRAIN WIRE RF AUD- LF AUD- RR AUD- LR AUD- GREEN LIGHT HOT AT ALL TIMES INSIDE REARVIEW MIRROR (ISRVM) LED GND SIG LED SIG LOGIC LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LIGHT LOW REF LT BLU/BLK WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ONSTAR BUTTON ASSEMBLY ONSTAR SWITCH ORG/ WIRE ORG/BLK WIRE RADIO RDO FUSE 42 FUSE 39 RED WIRE RED/WHT WIRE RF AUD+ LF AUD+ RR AUD+ LR AUD+ REM SIG TAN WIRE TELEPHONE SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) USB CABLE USB RECEPTACLE (IF EQUIPPED) VOICE SIG WHT WIRE YEL/BLK WIRE