GMC Sierra 2500 HD (2002-2012) dk grn Wiring diagrams

14 13 15 LOW REF STP CP SW SIG 5 VOLT REF 2501 2500 1164 1161 1271 COMPUTER DATA LINES SYSTEM 38 5 15 LOW REF BRK APPLY SENS SPLY SUPPLY VOLT 46 66 42 61 55 SER DATA BUS- SER DATA BUS+ 56 57 MOTOR CTRL 2 MOTOR CTRL-1 ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL) APP SEN 1 SIG LOW REF APP SEN 2 SIG LOW REF PPL BATT + BLK WIRE BLK/WHT WIRE BRAKE PEDAL POSITION (BPP) SENSOR BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL IND DIMMING SIG CRUISE CONTROL SWITCH SIGNAL CRUISE IND CRUISE SWITCH DK BLU WIRE DK GRN WIRE ECM BATT FUSE 11 ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) GMLAN DATA BUS- GRN/WHT WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE HI SPD GMLAN SER DATA BUS- HOT AT ALL TIMES HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH) DIM FUSE 7 INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (BEHIND STEERING WHEEL) INSTRUMENT PANEL CLUSTER (IPC) INTAKE AIR VALVE IPC FUSE 43 LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT STEERING WHEEL CONTROL SWITCH ASSEMBLY LOGIC LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RED/WHT WIRE RES+ SER DATA SET- SOUND SYSTEMS TAN WIRE TAN/BLK WIRE TP SENS SIG LOW REF TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (REAR OF TRANSMISSION) VSS HI SIG VSS LO SIG W/ TWO SPEED PUSH BUTTON, ELECTRIC SHIFT CONTROL TRANSFER CASE W/O TWO SPEED PUSH BUTTON, ELECTRIC SHIFT CONTROL TRANSFER CASE WHT WIRE WHT/BLK WIRE YEL WIRE

7 3 SUPPLY VOLT LOW REF BATT POS VOLT BLK WIRE COMPUTER DATA LINES SYSTEM DDM FUSE 4 DK GRN WIRE DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER OUTSIDE REARVIEW MIRROR GRN WIRE GROUND GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES HVAC CONTROL MODULE I/P FUSE BLOCK (LEFT SIDE OF DASH, LOGIC LOW REF ORG/ WIRE PASSENGER DOOR LOCK/WINDOW SWITCH PASSENGER OUTSIDE REARVIEW MIRROR PDM FUSE 9 POWER DISTRIBUTION SYSTEM REAR DEFOGGER IND REAR DEFOGGER SWITCH RED WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) SERIAL DATA SUPPLY VOLT WHT WIRE

AUX HVAC-IGN FUSE 48 BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE FRONT FUEL PUMP, SENDER ASSEMBLY (IN FRONT FUEL TANK) FUEL TANK PRESSURE (FTP) SENSOR (ON FUEL PUMP, SENDER ASSEMBLY) GND IGN GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED IGN B+ INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 46 LO BUS LOGIC LOW OIL PRESSURE IND LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE REAR FUEL PUMP, SENDER ASSEMBLY (W/ DUAL FUEL TANK) (IN REAR FUEL TANK) RED/WHT WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/O STEERING WHEEL HEATER

5 4 VOL SPLY SIG SNSR 5 VOLT REF 3 5-VOLT REF 1 BLK WIRE BRAKE PEDAL POSITION SENSOR BREAKOUT) BRN WIRE BRN/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SENS SIG ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) EVAP CTRL FUEL TANK SIG GENERATOR SIG GRY WIRE GRY/WHT WIRE LOW REF LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAP SENS SIG NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PLUG SPARK PMRY SEN SIG PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPL PPL/WHT WIRE RED WIRE SECONDARY SIG SIG SNSR STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TOS SIG TRANSMISSIONS SYSTEM VOL SPLY VSS HI SIG VSS LOW SIG W/ TWO SPEED TRANFER CASE W/O TWO SPEED TRANFER CASE WHT WIRE YEL WIRE

BANK 1 SENSOR 2 (DOWNSTREAM OF LEFT CATALYTIC CONVERTER) BANK 2 SENSOR 2 (DOWNSTREAM OF RIGHT CATALYTIC CONVERTER) BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION (CMP) SENSOR (FRONT OF ENGINE, ABOVE CRANK PULLEY) CRANKSHAFT POSITION (CKP) SENSOR (RIGHT REAR OF ENGINE) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE (ECT) SENSOR (ON TOP OF ENGINE) FROM ECM/THROT CONT FUSE 5 (DIAGRAM 2 OF 6) GRY WIRE GRY/WHT WIRE HEATED OXYGEN INJ-A FUSE 24 INJ-B FUSE 13 LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR (ON TOP OF INTAKE MANIFOLD) NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPL PPL/WHT WIRE SNSR FUSE 18 SNSR FUSE 8 TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE YEL/BLK WIRE

5-VOLT REF 1 5-VOLT REF 1 5-VOLT REF 4 LOW REF BANK 1 SENSOR 1 (UPSTREAM OF LEFT CATALYTIC CONVERTER) BANK 2 SENSOR 1 (UPSTREAM OF RIGHT CATALYTIC CONVERTER) BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CMP SENS SIG PRESS SENS SIG 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) ENGINE OIL PRESSURE (EOP) SENSOR (TOP REAR OF ENGINE) GRY WIRE GRY/WHT WIRE HEATED OXYGEN IC 2 CTRL IC 6 CTRL IC 3 CTRL CKP SENS SIG IC 7 CTRL IC 5 CTRL LOW REF 5-VOLT REF 2 IGNITION 1 VOLT LOW REF KNOCK SENSOR (KS) 1 (LOWER LEFT SIDE OF ENGINE) KNOCK SENSOR (KS) 2 (LOWER RIGHT SIDE OF ENGINE) KS 1 SIG KS 2 SIG LOW REF LOW 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 WIRE PNK/BLK WIRE PPL PPL CAMSHAFT CTRL PPL TP SENS 2 SIG PPL/WHT WIRE TAC MTR CTRL 1 TAC MTR CTRL 2 IC 8 CTRL IC 4 CTRL LOW REF LOW REF TAN WIRE TAN/WHT WIRE TP SENS 1 SIG YEL WIRE YEL/BLK WIRE

1786 5985 TRANSMISSIONS SYSTEM COMPUTER DATA LINES SYSTEM 6049 3108 2365 2931 6288 419 2927 2366 507 COOLING FANS SYSTEM 7493 2500 440 5991 2364 23 6141 6399 1439 COMPUTER DATA LINES SYSTEM AIR CONDITIONING SYSTEM APP SIG 1 5 VOLT REF 5 VOLT REF BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM 439 492 25 1272 COOLING FANS SYSTEM CRUISE/ETC/TCC BRK SIG FWD LOCK IND FWD LOCK SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) EXHAUST DIFFERENTIAL SENSOR (ON FRAME RAIL ABOVE CATALYTIC CONVERTER) EXHAUST TEMPERATURE SENSOR 2 (IN EXHAUST, DOWNSTREAM OF CATALYTIC CONVERTER) EXHAUST TEMPERATURE SENSOR 3 (IN EXHAUST, MIDDLE OF DIESEL PARTICULATE FILTER) EXTERIOR LIGHTS SYSTEM 1695 1694 TRANSMISSIONS SYSTEM TRANSMISSIONS SYSTEM GRY WIRE GRY/BLK WIRE INJ HIGH CTRL A/C CLUTCH RLY CTRL LOW REF LOW REF LOW REF LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR NCA WIRE NEAR FAN SHROUD) ORG/BLK WIRE PNK IGN 1 VOLT AIR FLOW SENS SIG GENERATOR TURN ON SIG LOW REF WIRE PNK WIRE PPL PPL PNK WIRE RED/WHT WIRE STARTER ENABLE RLY CTRL DEF VALVE HIGH CTRL LOW REF STARTING/CHARGING SYSTEM STARTING/CHARGING SYSTEM 3101 6783 TAN WIRE TAN/BLK WIRE TAN/WHT WIRE WHT/ DK BLU WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL) BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/ WHT WIRE GRY WIRE GRY/WHT WIRE HI SPD GMLAN SER DATA - IGN VOLT IND INSTRUMENT PANEL CLUSTER (IPC) LOGIC IND CTRL LOW ENGINE OIL PRESSURE IND LT BLU WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP NITROGEN NITROGEN OXIDES SENSOR 2 (IN EXHAUST, MIDDLE OF DIESEL PARTICULATE FILTER) ORG/WHT WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK WIRE PPL/WHT WIRE RED WIRE RED/WHT WIRE REDUCTANT FLUID RESERVOIR ASSEMBLY REDUCTANT FLUID RESERVOIR ASSEMBLY REDUCTANT TANK HEATER REDUCTANT SENSOR MODULE (ABOVE REDUCTANT TANK) SENS 1 GND SENS 1 SPLY VOLT SENS 2 GND SER MIL DATA CTRL TAN WIRE TAN/BLK WIRE W/ DUAL FUEL TANK W/O 2 SPEED TRANSFER CASE WAIT TO WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE AIR COOLER INLET TEMPERATURE SENSOR (INTAKE MANIFOLD) CHARGE AIR COOLER OUTLET TEMPERATURE SENSOR (TOP RIGHT FRONT OF ENGINE) COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GLOW PLUGS (2, 4, 6, 8: ABOVE RESPECTIVE CYLINDERS) GRY WIRE GRY/WHT WIRE HI SPD GMLAN SER DATA - HOT AT ALL TIMES HTR CTRL IAH COMM 1 IAH COMM 2 IAH CURRENT SIG IAH DIG SIG IAH FDBK SIG IAH HEART BEAT SIG IAH SW ON/OFF SIG IAH TEMP SIG IAH VOLT FEEDBACK SIG IAH VOLT SIG IGN 1 VOLT INTAKE AIR HEATER (IAH) (LEFT FRONT OF ENGINE ) LINE HTR CTRL LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE NCA WIRE ORG/BLK WIRE ORG/WHT WIRE PLUG 1 CTRL PLUG 2 CTRL PLUG 3 CTRL PLUG 4 CTRL PLUG 5 CTRL PLUG 6 CTRL PLUG 7 CTRL PLUG 8 CTRL PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE PUMP HTR CTRL RED WIRE RED/BLK WIRE RED/WHT WIRE SENS 1 GND SENS 1 SPLY VOLT SENS 2 GND SENS 2 SPLY VOLT TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE HOLDER (RIGHT SIDE OF FIREWALL) WAKEUP SER DATA YEL WIRE

5 VOLT REF ACT CTRL CLOSE ACT CTRL OPEN BLK WIRE BLK/WHT WIRE BRAKE PEDAL POSITION SENSOR (BPP) BRN WIRE BRN/GRY WIRE BRN/WHT WIRE CAC TEMP SENS SIG CKP SENS SIG CMP SENS SIG CTRL CYL 2 CTRL CYL 3 CTRL CYL 5 CTRL CYL 8 DK BLU WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SENS SIG EGR VALVE SENS SIG EGRT SENS 1 SPLY VOLT EGRT SENS 2 SPLY VOLT EGRV MTR HIGH SIG EGRV MTR LOW SIG EGT SENS 1 SIG ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT, NEAR FAN SHROUD) FUEL LEVEL SENS SIG FUEL TEMP 1 SIG FUEL TEMP SIG GRY WIRE GRY/BLK WIRE GRY/WHT WIRE INTAKE AIR VALVE LEVEL SENSOR LOW REF LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MTR CLOSE CTRL MTR OPEN CTRL NCA WIRE OIL PRESSURE SENS SIG ORG/BLK WIRE PNK WIRE PNK/BLK WIRE POS SENS SIG PPL/WHT WIRE PRESSURE SENS RTN PRESSURE SENS SIG PRESSURE SW SIG RED/WHT WIRE SHUTDOWN SIG SNSR SIG TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TEMP 1 RTN TEMP SENS RTN TEMP SENS SIG TRANSMI- SSIONS SYSTEM VOL SPLY W/O 2 SPEED TRANSFER CASE WATER IN FUEL SENS SIG WHT WIRE WHT/BLK WIRE YEL WIRE