GMC Sierra 2500 HD (2002-2012) dk blu/wht Wiring diagrams

4 6 BATT POS VOLT GND 6 4 GND BATT POS VOLT BACK IND BCK, CUSH BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOL IND DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER MEMORY/ HEATED, COOLED SEAT SWITCH DRV HEAT COOL CTRL DRV HEAT COOL SW SIG DRV HEAT HI TEMP CTRL DRV HEAT LO TEMP CTRL DRV HEAT MID TEMP CTRL DRV SEAT BACK CTRL DRV ST BCK, CSH CTRL GMLAN SERIAL DATA GROUND DISTRIBUTION SYSTEM GRY WIRE HI IND HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, LO IND LOW REFERENCE LT BLU WIRE LT GRN/BLK WIRE MEMORY SW DIM CTRL MID IND ORG/ WIRE PAS HEAT COOL CTRL PAS HEAT COOL SW SIG PAS HEAT HI TEMP CTRL PAS HEAT LO TEMP CTRL PAS HEAT MID TEMP CTRL PAS SEAT BACK CTRL PAS ST BCK, CSH CTRL PASSENGER DOOR LOCK/ WINDOW SWITCH PASSENGER MEMORY/ HEATED, COOLED SEAT SWITCH PDM FUSE 9 PNK LOW REFERENCE WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL DRV SEAT BACK CTRL PPL PAS HEAT BACK CTRL RED WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) SEAT BACK) SEAT COOL SEAT HEAT TAN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

14 15 RR DR SW LR DR SW 2 10 B+ SERIAL DATA 5 1 LP CTRL SPLY VOLT 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 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 (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 MODULE NCA WIRE ORG/ WIRE PASSENGER DOOR LATCH ASSEMBLY (REAR OF PASSENGER'S DOOR) PASSENGER DOOR LOCK/WINDOW SWITCH PDM FUSE 9 READING LAMPS REAR DOME/ READING LAMPS (EXTENDED CAB, CREW CAB) RED/WHT WIRE RIGHT REAR DOOR LATCH RIGHT SUNSHADE (IF EQUIPPED) RIGHT VANITY MIRROR LAMP TAN/WHT WIRE VOLT W/ COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE W/ INDIVIDUAL FRONT SEAT, POWER MIRROR W/ NON BUCKET FRONT INDIVIDUAL SEAT W/ NON BUCKET FRONT INDIVIDUAL SEAT, POWER MIRRORS W/O COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE WHT/BLK WIRE YEL WIRE

10 20 8 14 15 LF DR SW DR DOOR RF DR SW RR DR SW LR DR SW 2 10 B+ SERIAL DATA 5 1 LP CTRL SPLY VOLT 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 18 25 SPLY VOLT PPL DEFEAT SW 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 VANITY MIRROR LAMP DOME LAMPS LEFT SUNSHADE (IF EQUIPPED) LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE PASSENGER DOOR LATCH ASSEMBLY (REAR OF PASSENGER'S DOOR) PPL 9 12 READING LAMPS REAR DOME/ READING LAMPS (EXTENDED CAB, 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 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

BATT POS VOLT GND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DK BLU/WHT WIRE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) HOT AT ALL TIMES I/P WINDSHIELD WASHER SOLVENT HEATER SWITCH MULTI- FUNCTION SWITCH IGN I/II INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOGIC LOW SPD GMLAN SERIAL DATA LT GRN WIRE NCA WIRE ORG/ WIRE PNK WIRE RED/BLK WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WASHER FLD HTD CTRL SW LED SUPPLY VOLT GND WNDSHLD WASHER SW SIG IGNITION 3 VOLT WINDSHIELD WASHER SOLVENT HEATER (LEFT REAR CORNER OF ENGINE COMPT) WINDSHIELD WASHER SW SIG PNK WIRE WIPER/ WASHER CIRCUIT WSW/HTR FUSE 66 (EXCEPT 6.6L) FUSE 61 (6.6L)

6399 (OR 821) 71 72 73 VSS HIGH SIG VSS LO SIG GND A/C CL CTRL A/C PRESS SIG LO REF AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM AXL SW SIG BANK 1 SENSOR 2 (DOWNSTREAM OF LEFT CATALYTIC CONVERTER) BANK 2 SENSOR 2 (DOWNSTREAM OF RIGHT CATALYTIC CONVERTER) BLK WIRE BLK/WHT WIRE BRK SW SIG BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM COOLING FANS SYSTEM COMPUTER DATA LINES SYSTEM 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) FRONT FUEL PUMP, FUEL CTRL FUEL CTL-SEC STRT RLY CTRL FUEL LVL-SEC FUEL PMP RELAY FUEL PUMP FUSE 20 FUEL TANK PRESSURE (FTP) SENSOR (ON FUEL PUMP, SENDER ASSEMBLY) GMLAN - GMLAN + GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEATED OXYGEN HOT AT ALL TIMES IAT SIG LO REF IGN 1 VOLT LO REF LO REF LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAF SIG MIL CTRL PPL NCA WIRE ORG/BLK WIRE ORG/WHT WIRE PNK WIRE PNK/BLK WIRE PPL PPL FUEL LVL-PRI CFAN HI CTL ACC SER DATA PPL LO REF FTP SIG PPL/WHT WIRE PWTN RLY CTRL RED/WHT WIRE SENDER ASSEMBLY (IN FRONT FUEL TANK) STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VSS CFAN LO CTRL W/ 10 SERIES W/ 31 SERIES W/O 10 SERIES WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

6399 (OR 821) 71 72 73 VSS HIGH SIG VSS LO SIG GND A/C CL CTRL A/C PRESS SIG LO REF AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM AXL SW SIG BANK 1 SENSOR 2 (DOWNSTREAM OF LEFT CATALYTIC CONVERTER) BANK 2 SENSOR 2 (DOWNSTREAM OF RIGHT CATALYTIC CONVERTER) BLK WIRE BLK/WHT WIRE BRK SW SIG BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM COOLING FANS SYSTEM COMPUTER DATA LINES SYSTEM 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) FRONT FUEL PUMP, FUEL CTRL FUEL CTL-SEC STRT RLY CTRL FUEL LVL-SEC FUEL PMP RELAY FUEL PUMP FUSE 20 FUEL TANK PRESSURE (FTP) SENSOR (ON FUEL PUMP, SENDER ASSEMBLY) GMLAN - GMLAN + GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEATED OXYGEN HOT AT ALL TIMES IAT SIG LO REF IGN 1 VOLT LO REF LO REF LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAF SIG MIL CTRL PPL NCA WIRE ORG/BLK WIRE ORG/WHT WIRE PNK WIRE PNK/BLK WIRE PPL PPL FUEL LVL-PRI CFAN HI CTL ACC SER DATA PPL LO REF FTP SIG PPL/WHT WIRE PWTN RLY CTRL RED/WHT WIRE SENDER ASSEMBLY (IN FRONT FUEL TANK) STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VSS CFAN LO CTRL W/ 10 SERIES W/ 31 SERIES W/O 10 SERIES WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL) BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE ECM BATT FUSE 12 ECM-IGN FUSE 56 ECM/THROT CONT FUSE 5 ENG FUSE 4 FUEL INJECTORS (TOP OF LEFT CYLINDER BANK) FUEL INJECTORS (TOP OF RIGHT CYLINDER BANK) FUSE 18 (DIAGRAM 3 OF 5) HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED IAT INJ-A FUSE 24 INJ-B FUSE 13 LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE MAF ORG/BLK WIRE PNK 1 2 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPL PPL PNK PNK WIRE PWR/ TRN RELAY RED/WHT WIRE SNSR FUSE 8 TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCM- BATT FUSE 14 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ TWO SPEED TRANSFER CASE ACTIVE PUSH BUTTON, ELECTRIC SHIFT CONTROL W/O TWO SPEED TRANSFER CASE ACTIVE PUSH BUTTON, ELECTRIC SHIFT CONTROL WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

AUX HVAC-IGN FUSE 48 BANK 1 SENSOR 1 (UPSTREAM OF LEFT CATALYTIC CONVERTER) BANK 2 SENSOR 1 (UPSTREAM OF RIGHT CATALYTIC CONVERTER) BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH (ON BRAKE MASTER CYLINDER RESERVOIR) BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION (CMP) SENSOR (FRONT OF ENGINE, ABOVE CRANK PULLEY) COMPUTER DATA LINES SYSTEM CRANKSHAFT POSITION (CKP) SENSOR (RIGHT REAR OF ENGINE) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE (ECT) SENSOR (ON TOP OF ENGINE) ENGINE OIL PRESSURE (EOP) SENSOR (TOP REAR OF ENGINE) ENGINE OIL PRESSURE IND FROM INJ-B FUSE 13 (DIAGRAM 2 OF 5) GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEATED OXYGEN HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) IPC FUSE 46 HOT IN RUN OR START IGN B+ IGN MALFUNCTION INDICATOR LAMP INSTRUMENT PANEL CLUSTER (IPC) LO BUS LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR (ON TOP OF INTAKE MANIFOLD) NCA WIRE ORG/BLK WIRE PNK PNK 14 15 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL PNK PNK 5 6 7 WIRE PPL PNK PNK WIRE PPL/WHT WIRE RED/WHT WIRE SNSR FUSE 18 TAN WIRE TAN/WHT WIRE W/ BASE BODY OR CHASSIS BODY EQUIPMENT W/O BASE BODY OR CHASSIS BODY EQUIPMENT WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BRN WIRE BRN/WHT WIRE CKP SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COMPT NEAR FAN SHROUD) ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF GRY WIRE GRY/BLK WIRE GRY/WHT WIRE IC 1 CTRL IC 2 CTRL IC 3 CTRL IC 4 CTRL IC 5 CTRL IC 6 CTRL IC 7 CTRL IC 8 CTRL IGNITION COILS (UPPER LEFT SIDE OF ENGINE) LO REF LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK PNK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE SPARK PLUG TAN WIRE TAN/WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BREAKOUT) BRN WIRE BRN/WHT WIRE CHG IND SIG CMP SIG CYL OFF CTRL 4 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 EVAPORATIVE EMISSION (EVAP) CANISTER PURGE SOLENOID VALVE (ON INTAKE MANIFOLD) GEN FDC SIG GRY WIRE GRY/WHT WIRE HARNESS, 5 CM IGNITION COILS (UPPER RIGHT SIDE OF ENGINE) INJ 2 CTRL INJ 3 CTRL INJ 4 CTRL INJ 7 CTRL 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 WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED WIRE SOL CTRL CYL OFF CTRL 3 CYL OFF CTRL 1 CYL OFF CTRL 2 SPARK PLUG STARTING/ CHARGING SYSTEM TAC MTR CTRL 2 TAC MTR CTRL 1 TAN WIRE TAN/WHT WIRE YEL WIRE YEL/BLK WIRE