GMC Sierra 2500 HD (2002-2012) red Wiring diagrams

ALC/ COMP S/ROOF FUSE 35 FUSE 38 FUSE 60 AUXILIARY BATTERY AUXILIARY BATTERY RELAY (RIGHT REAR CORNER OF ENGINE COMPT) B(+) B+ A+ BATTERY (RIGHT) BLK WIRE CAMPER/ FIFTH WHEEL TRAILER PROVISION (BLUNT CUT) DK GRN WIRE DUAL BATTERY EMERGENCY VEHICLE EMERGENCY VEHICLE PROVISION (BLUNT CUT) EMERGENCY VEHICLE ROOF LAMP RELAY ROOF BEACON RELAY EMERGENCY VEHICLE WRECKER EXCEPT CAMPER/ FIFTH WHEEL TRAILER CAMPER/ FIFTH WHEEL TRAILER FUSE B FUSE D FUSE A FUSE C FUSE BLOCK (MOBILE RADIO) (BEHIND RIGHT SIDE OF DASH) FUSE BLOCK (UNDERHOOD) (RIGHT SIDE OF FIREWALL) FUSE HOLDER (UNDERHOOD) (RIGHT SIDE OF FIREWALL) FUSE HOLDER (UNDERHOOD) (RIGHT SIDE OF FIREWALL) MEGA FUSE FUSIBLE LINK 1 FUSIBLE LINK 2 FUSIBLE LINK 3 BATTERY (LEFT) GARAGE DOOR OPENER GENERATOR IGNIII IGNIII IGNIII INCLINATION SENSOR SECURITY INDICATOR LAMP J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) J/B (RIGHT I/P) J/B (RIGHT I/P) J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) (RIGHT END OF DASH) LGM FUSE 73 LT BLU WIRE LT GRN WIRE MEGA FUSE MEGA FUSE MEGA FUSE NCA WIRE ORG/ WIRE PACKAGE POWER POWER TAKE-OFF MODULE RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY RELAY A RELAY B RIGHT END OF DASH) ROOF BEACON ROOF BEACON OR SUNROOF ROOF BEACON SWITCH ROOF-MOUNTED (EMERGENCY) LIGHTING RUN WIRE SLIDING REAR WINDOW- SWITCH SUNROOF MODULE WINDOW SWITCH- PASSENGER STARTER STUD 1 FUSE 70 STUD 2 FUSE 65 FUSE 54 SUN ROOF SUNROOF MODULE (B) TO CTSY FUSE (DIAGRAM 2 OF 5) TO PDM FUSE (DIAGRAM 2 OF 5) TO RUN/CRANK RELAY (DIAGRAM 5 OF 5) TO S/ROOF FUSE (SAME DIAGRAM) TRAILER BRAKE CONTROLLER SOLID STATE RELAY TRAILER BRAKE PROVISION (BLUNT CUT) TRAILER CONNECTOR SHOCK SENSOR WHT WIRE WINDOW SWITCH- DRIVER WRECKER RELAY (RIGHT REAR CORNER OF ENGINE COMPT) YEL WIRE

* PREMIUM SOUND AUTOMATIC POWER MIRROR AUX AUX PWR 2 PWR FUSE FUSE AUXILIARY POWER OUTLET (BIN) AUXILIARY POWER OUTLET (CENTER SEAT) AUXILIARY POWER OUTLET (CONSOLE) AUXILIARY POWER- OUTLET- FRONT 1 AUXILIARY POWER- OUTLET- FRONT 2 BLK WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) REAR OBJECT SENSOR CONTROL MODULE COOLED SEATS RT STOP TRN CTSY BCM DIM FUSE FUSE FUSE FUSE FUSE CREW CAB W/ INDIVIDUAL FRONT SEATS DATA LINK CONNECTOR DDM PWR MIR FUSE FUSE DOOR LATCH ASSEMBLY (DRIVER) DOOR LATCH ASSEMBLY (RIGHT REAR) DOOR LATCH ASSEMBLY (LEFT REAR) DRIVER DOOR SWITCH (DDS) DRIVER DOOR SWITCH (DDS) OUTSIDE REAR VIEW MIRROR SWITCH DSM FUSE DVR UNLCK FUSE EXCEPT CONSOLE EXCEPT PREMIUM SOUND FROM J/B (LEFT I/P) FROM LGM FUSE (DIAGRAM 1 OF 5) FUSE FUSE BLOCK (I/P) (LEFT SIDE OF DASH) FUSE BLOCK (UNDERHOOD) (RIGHT SIDE OF FIREWALL) GRY WIRE IS LPS LT STOP TRN FUSE FUSE FUSE J/B (LEFT I/P) J/B (RIGHT I/P) LBEC 1 FUSE 66 LBEC 2 FUSE 74 LCK 2 LCK 1 FUSE FUSE LOCK PCB RELAY LOCK/ UNLOCK PCB RELAY LT DR CIRCUIT BREAKER LTR FUSE 55 LUXURY EDITION EXCEPT LUXURY EDITION MEMORY SEAT MODULE OBS DET PASSENGER DOOR SWITCH (PDS) PDM FUSE POWER LOCKS W/O AUTOMATIC POWER MIRROR REAR HVAC REAR SEAT) REAR WPR RED WIRE RED/BLK WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) RIGHT END OF DASH) STOP LAMPS TAN WIRE UNLCK 1 LCK 1 FUSE FUSE UNLCK 2 UNLCK 1 FUSE FUSE UNLOCK PCB RELAY W/ CONSOLE W/O AUTOMATIC POWER MIRROR WHT WIRE WINDOW SWITCH) (LEFT REAR) WINDOW SWITCH- DRIVER

A/C CMPRSR RELAY AIR BAG BATT FUSE 46 AMP FUSE 42 AUDIO AMPLIFIER BODY CONTROL MODULE (BCM) CHIME MODULE COOLING FAN (LEFT) COOLING FAN (RIGHT) DIGITAL RADIO RECEIVER DK GRN WIRE ECM BATT ELEC RUN BOARD ENGINE CONTROL MODULE (ECM) ESC/ALH EXH EXCEPT LUXURY NO RADIO EXP/ PTO FAN 1 FUSE FAN LO RELAY FAN WIPER HI CONTROL RELAY PCB RELAY FAN-2 FRT WPR FUSE FUSE 37 FROM LGM FUSE (DIAGRAM 1 OF 5) FRT WASH PCB RELAY FSCM FUSE 22 FUEL PUMP RELAY FUEL SYSTEM CONTROL MODULE (FSCM) FUSE 13 FUSE 15 FUSE 23 FUSE 3 FUSE 40 FUSE 49 FUSE 67 FUSE BLOCK (UNDERHOOD) (RIGHT SIDE OF FIREWALL) GPS, REAR ENTER- TAINMENT EXCEPT LUXURY GRY WIRE HDLP WASH HEAVY DUTY ABS WSW/HTR FUSE 61 FUSE 68 HORN PCB RELAY HVAC BATT HVAC BLWR FUSE 72 HVAC CONTROL MODULE INFOTMNT FUSE 47 INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 48 ITBC ABS-1 ABS 2 FUSE 7 FUSE 63 FUSE 10 J/B (LEFT I/P) J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) LT BLU WIRE LUXURY NCA WIRE POWER TAKE-OFF (BLUNT CUT) POWER TAKE-OFF (PTO) RELAY PPL PREMIUM AUDIO EXCEPT LUXURY PREMIUM AUDIO W/LUXURY RADIO REAR SEAT AUDIO (RSA) CONTROLLER RDO FUSE 43 REAR DEFOG RELAY REAR ENTER- TAINMENT EXCEPT LUXURY REAR ENTER- TAINMENT W/LUXURY REAR ENTER- TAINMENT W/LUXURY GPS EXCEPT LUXURY GPS W/ LUXURY RED WIRE RED/BLK WIRE RED/WHT WIRE STRTR RELAY TCM BATT TRAILER BRAKE CONTROLLER MODULE (TBCM) ELECTRONIC BRAKE CONTROL MODULE (EBCM) TRANSFER CASE ENCODER MOTOR TRANSFER CASE SHIFT CONTROL MODULE TREC FUSE 69 VIDEO COMMUNICATION INTERFACE MODULE (VCIM) VIDEO DISPLAY WHT WIRE WINDSHIELD WASHER SOLVENT HEATER J/B (RIGHT I/P) WINDSHIELD WIPER MOTOR WIPER SPEED PCB RELAY

BLK WIRE BLK/WHT WIRE CENTER CENTER SEAT CONSOLE ACCESSORY ACCESSORY POWER POWER OUTLET OUTLET CONSOLE COMPARTMENT ACCESSORY POWER OUTLET CREW CAB CREW CAB EXTENDED CAB CREW CAB/ EXTENDED CAB W/ PERFORMANCE ENHANCED AUDIO, FRONT COMPARTMENT CONSOLE DRIVE MOTOR BATTERY NEGATIVE HIGH VOLTAGE CONTACTOR RELAY DRIVER GENERATOR MOTOR BATTERY GENERATOR VENT FAN BATTERY DRIVER MOTOR GENERATOR BATTERY CONTROL MODULE DRIVER SEAT ADJUSTER W/ MULTI- SWITCH DIRECTIONAL PASSENGER POWER SEAT ADJUSTER EXCEPT CREW CAB EXCEPT HYBRID HYBRID EXCEPT REGULAR CAB EXTENDED CAB FROM FRONT PASSENGER/CHILD PRESENCE DETECTOR GMC GRD GRD GRD HYBRID EXCEPT HYBRID FROM FROM HYBRID W/ NON BUCKET FRONT INDIVIDUAL SEAT 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 LEFT TAIL/ BACKUP STOP, TURN LAMP 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 RED WIRE RIGHT LICENSE LAMP RIGHT REAR DOOR LATCH RIGHT REAR MOST FENDER CLEARANCE TAILGATE MARKER LAMP LAMP RIGHT REAR WINDOW SWITCH TO DRIVER MOTOR GENERATOR TO GROUND BATTERY (DIAGRAM (DIAGRAM 6 OF 6) 6 OF 6) TRAILER BRAKE CONTROL RELAY TRAILER BRAKE CONTROL MODULE UPPER LEFT TAIL/ STOP, TURN SIGNAL LAMP W/ FULL FEATURE CENTER SEAT W/ NON BUCKET FRONT INDIVIDUAL SEAT W/ POWER WINDOWS, FULL FEATURE CENTER SEAT W/ REAR DEFOGGER W/ REAR DUAL WHEEL W/ TRAILER 6.6L, 6.0L (VIN G) 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 W/O TRAILER BRAKE WHT WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 B+ 1 2 3 4 5 6 7 8 PPL RR SNS SIG RR SNS SIG LR SNS SIG SUPPLY LR SNS SIG 2378 2377 2376 2374 2375 PPL 5060 2751 2555 COMPUTER DATA LINES SYSTEM BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE DK BLU WIRE DK GRN WIRE GMLAN GND DISABLE SIG GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, I/P MULTI-FUNCTION SWITCH IND DIM LED DISABLE LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT REAR MIDDLE OBJECT SENSOR (LEFT SIDE OF REAR BUMPER) LEFT REAR OBJECT CORNER SENSOR (LEFT CORNER OF REAR BUMPER) LOW REF LT BLU WIRE OBS DET FUSE 20 ORG/ WIRE PPL PPL 5 24 18 8 23 PPL/WHT WIRE REAR OBJECT SENSOR CONTROL MODULE (AT REAR CARGO AREA, BEHIND TRIM PANEL) REAR PARK ASSIST DISABLE SWITCH RED WIRE RED/WHT WIRE RIGHT REAR CORNER OBJECT SENSOR (RIGHT CORNER OF REAR BUMPER) RIGHT REAR MIDDLE OBJECT SENSOR (RIGHT SIDE OF REAR BUMPER) W/O SPO HEATED SEATS W/ SPO HEATED SEATS WHT WIRE YEL WIRE

BLK WIRE BRN WIRE BRN/WHT WIRE CHG IND SIG CMP SIG CTRL CYL OFF CTL 2 CYLINDER SHUTOFF SOLENOID 1, CYL 1 CYLINDER SHUTOFF SOLENOID 2, CYL 4 CYLINDER SHUTOFF SOLENOID 3, CYL 6 CYLINDER SHUTOFF SOLENOID 4, CYL 7 DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) EOP SIG GEN FDC SIG OIL LVL SW SIG LO REF LO REF GRY WIRE GRY/BLK WIRE GRY/WHT WIRE IGN IGNITION COILS INJ 2 CTL INJ 3 CTL INJ 4 CTL INJ 7 CTL LO REF LO REF LO REF LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAP SIG PPL NCA NCA WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK PNK 38 39 WIRE PNK WIRE PNK/BLK WIRE PPL PPL CAM SOL CTL INJ 8 CTL INJ 5 CTL INJ 6 CTL INJ 1 CTL ECT SIG LO REF PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE REF LO SOL CTRL CYL OFF CTL 3 CYL OFF CTL 1 CYL OFF CTL 4 SPARK PLUG SPARK SPARK PLUG PLUG SPARK SPARK SPARK PLUG PLUG PLUG STARTING/ CHARGING SYSTEM STARTING/CHARGING SYSTEM TAC MOT CTL 2 TAC MOT CTL 1 TAN WIRE TAN/WHT WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BRN WIRE BRN/WHT WIRE CMP SENSOR SIG DK BLU WIRE DK BLU/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (TOP FRONT CENTER OF ENGINE) EXHAUST GAS RECIRCULATION (EGR) TEMPERATURE SENSOR 1 (TOP RIGHT REAR OF ENGINE) FUEL PRESSURE REGULATOR GRN WIRE GRY WIRE GRY YEL/BLK WIRE GRY/BLK WIRE GRY/WHT WIRE IAT SENSOR SIG DPF SENSOR SIG OIL PRESS SIG ECT SENSOR SIG INTAKE AIR TEMPERATURE (IAT) SENSOR 2 (ON TOP CENTER OF ENGINE) LOW REF LOW REF FUEL PRESS VOLT INJ + GROUP 4 INJ 6 INJ 3 LOW REF LOW REF LOW REF TURBO VANE POS FUEL INJ VOLT 3 INJ 5 INJ 4 LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MAF SENSOR SIG LOW REF MAP SENSOR SIG TUR VANE POS SIG APP SENSOR 2 SIG NCA WIRE OIL LEVEL SW SIG ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED WIRE STARTING/CHARGING SYSTEM TAN ORG/BLK WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM YEL WIRE YEL/BLK WIRE

22 23 24 25 PPL ACC SER DATA BLK WIRE BRN WIRE BRN/WHT WIRE BUS - COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE ENGINE OIL LEVEL (EOL) GLOW PLUG 1 GLOW PLUG 2 GLOW PLUG 3 GLOW PLUG 4 GLOW PLUG 5 GLOW PLUG 6 GLOW PLUG 7 GLOW PLUG 8 GLOW PLUGS (ABOVE RESPECTIVE CYLINDERS: 2, 4, 6, 8) GRY WIRE GRY/BLK WIRE IAH COMM 1 IAH COMM 2 IAH CURRENT SIG IAH FDBK SIG IAH TEMP SIG IAH VOLT SIG IGN 1 VOLT INTAKE AIR HEATER (IAH) (LEFT FRONT OF ENGINE ) LT BLU WIRE LT BLU/BLK WIRE LT GRN/WHT WIRE MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR (FRONT OF ENGINE) NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 7 8 9 WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED WIRE RED/GRN WIRE RED/LT GRN WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE WATER IN FUEL SENSOR (RIGHT SIDE OF ENGINE) WHT/GRN WIRE WHT/LT GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL PPL WIRE YEL WIRE YEL/BLK WIRE

1 2 PNK WIRE 22 23 24 25 PPL AXLE SW SIG BLK WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION (CMP) SENSOR (FRONT OF ENGINE, ABOVE CRANK PULLEY) CKP SENSOR SIG CRANKSHAFT POSITION (CKP) SENSOR (FRONT OF ENGINE, RIGHT OF CRANK PULLEY) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EGT SENSOR SIG ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) FRP SENSOR SIG GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE HOLDER (RIGHT SIDE OF FIREWALL) IGN 1 VOLT INJ 1 INJ 2 INTAKE AIR VALVE LOW REF LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE MEGA FUSE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 8 9 10 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE PTO ENG OFF SIG RED WIRE RED/BLK WIRE RED/WHT WIRE SENS 2 SPLY VOL SIG TAN WIRE TAN/WHT WIRE TCC BRAKE SIG TP SENSOR SIG TRANSMISSIONS SYSTEM WATER IN FUEL WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

23 1786 STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM 2501 6399 COMPUTER DATA LINES SYSTEM TRANSMISSIONS SYSTEM 5985 2500 COMPUTER DATA LINES SYSTEM ACC WAKE SER DATA DATA BUS + AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DATA BUS - VSS SIG DK BLU WIRE DK COMPUTER DATA LINES SYSTEM DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY EGR MOTOR HIGH LOW REF A/C REFRIG SIG FUEL LEVEL SENSOR SIG ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) ENGINE OIL PRESSURE GAUGE ENGINE OIL PRESSURE IND EXHAUST GAS RECIRCULATION (EGR) TEMPERATURE SENSOR 2 (TOP RIGHT FRONT OF ENGINE) FUEL GAUGE FUEL PUMP LOW REF FUEL RAIL PRESSURE (FRP) SENSOR (TOP LEFT REAR OF ENGINE) FUEL RAIL TEMPERATURE (FRT) SENSOR (TOP LEFT REAR OF ENGINE) GENERATOR SIG PARK/NEUTRAL SIG GRN WIRE GRY WIRE IND INSTRUMENT PANEL CLUSTER (IPC) LOGIC LOW REF LOW REF MIL CONTROL A/C COMPRESS LT BLU WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP NCA WIRE ORG/BLK WIRE PNK PNK PNK 1 2 3 WIRE PNK WIRE POWERTRAIN RLY CTRL MOTOR CTRL 1 IGN 1 VOLT PPL PRIMARY FUEL LEVEL SENSOR (IN FRONT FUEL TANK) RED WIRE STARTING/ CHARGING SYSTEM TACHOMETER TAN WIRE TAN/BLK WIRE VEHICLE SPEED SIG WAIT TO WAIT TO START WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE