GMC Sierra 3500 (2002-2006) org/ Wiring diagrams

ABS FUSE AUDIO AMPLIFIER AUXILIARY BATTERY RELAY (RIGHT REAR OF ENGINE COMPT) BATTERY (LEFT) BATTERY (RIGHT) BATTERY (RIGHT) (W/AUX BATTERY) BATTERY CABLE JUNCTION BLOCK BLK WIRE BLK/WHT WIRE BLUNT CUT) BODY CONTROL MODULE BRN WIRE CIG LTR FUSE CIGAR LIGHTER DATA LINK CONNECTOR DIGITAL RADIO RECEIVER RADIO ELECTRONIC BRAKE CONTROL MODULE EMERGENCY VEHICLE ROOF LAMP RELAY EVAPORATIVE EMISSIONS CANISTER VENT SOLENOID EXCEPT LUXURY FUSE FUSIBLE LINK 1 FUSIBLE LINK 2 FUSIBLE LINK 3 (8 GA- FUSIBLE LINK 4 FUSIBLE LINK 5 GENERATOR (LEFT) GENERATOR (RIGHT) GLOW PLUG CONTROL MODULE (GPCM) GLOW PLUG FUSE HD TRAILERING EQUIPMENT PROVISION (BLUNT CUT) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH) I/P RELAY BLOCK (LEFT OF STEERING COLUMN) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN A FUSE STUD 2 FUSE IGN B FUSE INTAKE AIR HEATER (IAH) MODULE INTAKE AIR HEATER FUSE LUXURY MEGA FUSE MOBILE RADIO FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) NCA WIRE NOT USED NOT USED ORG/ WIRE RADIO AMP FUSE RADIO FUSE REAR SEAT AUDIO (RSA) CONTROLLER REAR SEAT AUDIO (RSA) CONTROLLER DIGITAL RADIO RECEIVER RADIO RED WIRE RELAY RELAY/ FUSE RTD FUSE S/ROOF FUSE RR WIPER FUSE EAP FUSE STARTER STARTER RELAY STUD 1 FUSE SUNROOF CONTROL MODULE TBC BATT FUSE TO IGNITION SWITCH (DIAGRAM 4 OF 5) TO IGNITION SWITCH (DIAGRAM 5 OF 5) TRAILER CONNECTOR (7 WAY) VSES/ ECAS FUSE FUSE W/ AUX BATTERY W/ WRECKER EMERGENCY LAMP WHEEL TRAILER WIRING PROVISION (BLUNT CUT) WRECKER RELAY

AUTO A/C AUX PWR FUSE AUXILIARY POWER OUTLET (BIN) AUXILIARY POWER OUTLET (CONSOLE) AUXILIARY POWER OUTLET (FRONT) BLK WIRE BLOWER FUSE BLOWER MOTOR CONTROL MODULE BLOWER MOTOR RESISTOR ASSEMBLY BREAKOUT) DEFOG RELAY ENGINE CONTROL MODULE (ECM) EXCEPT LUXURY F/PMP RELAY FROM RADIO FUSE (DIAGRAM 1 OF 5) FUSE GARAGE DOOR OPENER HVAC CONTROL MODULE HVAC/ECAS FUSE I/P JUNCTION BLOCK (RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INFO FUSE INSTRUMENT PANEL CLUSTER IPC/DIC FUSE LH HID FUSE RH HID FUSE LUXURY MANUAL A/C NCA WIRE NOT USED NOT USED ORG/ WIRE OVERHEAD CONSOLE PCM B FUSE REAR SEAT ENTERTAINMENT ASSEMBLY RED WIRE REMOTE PLAYBACK DEVICE (CD PLAYER) REAR SEAT ENTERTAINMENT ASSEMBLY ROOF BEACON RELAY ROOF BEACON SWITCH RR DEFOG FUSE RR HVAC FUSE STOP LP FUSE STOPLAMP SWITCH TCM B FUSE TO ECM RELAY (DIAGRAM 3 OF 5) TO LBEC 1 FUSE (DIAGRAM 3 OF 5) TRANSFER CASE ENCODER MOTOR TRANSFER CASE SHIFT CONTROL MODULE TRANSMISSION CONTROL MODULE (TCM) TREC FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE COMMUNICATION INTERFACE MODULE

A/C COMP FUSE A/C COMP RELAY ACTUATOR FUSE BLK WIRE BODY CONTROL MODULE DDM FUSE DRIVER DOOR UNLOCK RELAY DRL FUSE DRL RELAY ECC/ TPM FUSE AUX PWR 2 FUSE ECM FUSE ECM RELAY ENGINE CONTROL MODULE EXC BASE FLASH FUSE FOG LP FUSE FOG LP RELAY FROM PCM B FUSE (DIAGRAM 2 OF 5) FUSE FUSE FUSE HDLP LOW RELAY HDLP-HI RELAY HORN RELAY I/P JUNCTION BLOCK (RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) LBEC 1 FUSE LBEC 2 FUSE LOCK RELAY LT DOOR CIRCUIT BREAKER LUMBAR BOLSTER SWITCH (FRONT PASSENGER) MBEC 1 FUSE NON BUCKET BUCKET NOT USED NOT USED ORG/ WIRE PARK LP RELAY PASSENGER DOOR MODULE PDM FUSE LOCKS FUSE PNK PNK WIRE PNK WIRE POWER TAKE OFF RELAY RED WIRE RT DOORS CIRCUIT BREAKER SEAT ADJUSTER SWITCH (DRIVER) MEMORY SEAT MODULE (DRIVER) SEAT ADJUSTER SWITCH (FRONT PASSENGER) SEATS CIRCUIT BREAKER TIRE PRESSURE MONITOR (TPM) MODULE TURN SIGNAL/ HAZARD FLASHER MODULE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UNLOCK RELAY W/S WASH FUSE W/S WASH RELAY WINDOW SWITCH (LEFT REAR) (CREW CAB) DRIVER DOOR MODULE WINDOW SWITCH (RIGHT REAR)

2 3 BATTERY GROUND 22 14 CLASS 2 SERIAL DATA BATTERY 4 2 GROUND BATTERY 5 10 11 PNK MEM 2 SW SIG MEM 1 SW SIG SPLY VOLTAGE WIRE 8 7 4 3 PNK LOW REF MIR SIGNAL MIR SENS LOW REF MIR HTR LOW REF WIRE BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DDM FUSE DK BLU WIRE DK GRN WIRE DRIVER DOOR MODULE (IN DRIVER'S DOOR) DRIVER OUTSIDE REARVIEW MIRROR ELECTRO- CHROMIC EXIT FOLDING MOTOR FRONT PASSENGER DOOR MODULE (IN PASSENGER'S DOOR) GRY WIRE HEATING ELEMENT HOT AT ALL TIMES HOT AT ALL TIMES I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) LEFT UP HORIZONTAL LEFT UP HORIZONTAL VERTICAL LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE MEM 1 MEM 2 MEMORY/ HEATED SEAT SWITCH ORG/ WIRE PASSENGER OUTSIDE REARVIEW MIRROR PDM FUSE PNK WIRE PPL PPL/WHT WIRE RED WIRE RED/WHT WIRE RT DOOR CIRCUIT BREAKER TAN WIRE VERTICAL WHT WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 BATT (+) 1150 (OR 1250) GND 1257 1258 TORSO BOLSTER IN CTRL TORSO BOLSTER OUT CTRL PPL 1523 1521 1520 HORIZ RWD SW SIG REAR VERT DN SW SIG FRT VERT DN SW SIG 2407 5701 1269 LUM MTR FWD CTRL TORSO BLSTR IN SW SIG RECLINE FWD SW SIG 2408 5702 LUM MTR RWD CTRL TORSO BLSTR OUT SW SIG RECLINE RWD SW SIG 2425 1048 SEATS SYSTEM HEATED SEAT TEMP SIG CLASS 2 SERIAL DATA 610 610 PNK PNK WIRE 940 1985 2432 5 VOLT REF 5 VOLT REF HTD SEAT BACK PWR BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER'S SEAT ADJUSTER SWITCH FRT UP GRY/BLK WIRE GRY/RED WIRE HOT AT ALL TIMES I/P RELAY BLOCK (NEAR LEFT KICK PANEL) SEAT CIRCUIT BREAKER LT BLU WIRE LT GRN WIRE LUM MTR FWD CTRL LUM MTR RWD CTRL LUM MTR RWD CTRL MEMORY SEAT MODULE (UNDER LEFT FRONT SEAT) NOT USED NOT USED ORG/ WIRE PNK WIRE PNK/ SEATS SYSTEM WIRE PPL PPL TRSO BLSTR POS SENS SIG REC FWD REC RWD RECLINE MTR POS SEN SIG RED/WHT WIRE RR DWN RR UP FRT DWN RWD FWD SEATS SYSTEM SEATS SYSTEM HEATED SEAT TEMP SIG SEATS SYSTEM HTD SEAT BACK PWR TAN WIRE TAN/BLK WIRE WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE

11 10 5 SPLY VOLTAGE MEM 1 SW SIG MEM 2 SW SIG BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER DOOR MODULE (IN DRIVER'S DOOR) DRIVER SEAT BOLSTER MOTOR POSITION SENSOR DRIVER SEAT BOLSTER/ LUMBAR SWITCH DRIVER SEAT FRONT VERTICAL MOTOR DRIVER SEAT FRONT VERTICAL POSITION SENSOR DRIVER SEAT HORIZ- ONTAL MOTOR DRIVER SEAT HORIZ- ONTAL POSITION SENSOR DRIVER SEAT LUMBAR MOTOR POSITION SENSOR DRIVER SEAT REAR VERTICAL MOTOR DRIVER SEAT REAR VERTICAL POSITION SENSOR DRIVER SEAT RECLINER MOTOR DRIVER SEAT RECLINER MOTOR POSITION SENSOR EXIT GRY/RED WIRE IN OUT LT BLU WIRE LT GRN WIRE MEM 1 MEM 2 MEMORY/ HEATED SEAT SWITCH ORG/ WIRE OUT PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED WIRE TAN WIRE TAN/WHT WIRE WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE

2 3 4 5 6 7 8 PNK WIRE 9 10 11 12 13 PNK WIRE AXLE SW SIG BACKUP VOLT BLK WIRE BLK/WHT WIRE BLUNT CUT) BODY RELAY BLOCK BRN WIRE CKP SENSOR SIG CLUTCH PEDAL POSITION SWITCH (TOP OF PEDAL BRACKET) DK BLU WIRE DK BLU/WHT WIRE ECM FUSE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FRP SENSOR SIG FUEL PRESSURE REGULATOR GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ACC, RUN, START HOT IN RUN BRAKE FUSE HOT IN RUN, START I/P FUSE BLOCK I/P FUSE BLOCK IGN 0 FUSE IGN 1 INJ 1 INJ 2 INTAKE AIR HEATER FUSE INTAKE AIR TEMPERATURE (IAT) SENSOR 2 INTAKE AIR TEMPERATURE (IAT)/ MASS AIRFLOW (MAF) SENSOR (IN AIR INDUCTION TUBE) LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 1 2 WIRE PNK 23 24 25 26 27 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 28 29 30 31 PPL/WHT WIRE RED WIRE RED/BLK WIRE STOPLAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TRANSMISSION SYSTEM TUR VAN POS UNDER- HOOD FUSE BLOCK WATER IN FUEL WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

12 13 14 PNK WIRE 2 3 4 5 6 7 8 PNK WIRE 20 21 PPL 9 10 11 12 13 PNK WIRE ACTUATOR FUSE BLK WIRE BLK/WHT WIRE BRN WIRE CLOSED BELOW 8 DEG C (46 DEG F) DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ECM RELAY ECM-B FUSE ECU FUSE F/ PUMP RELAY FUEL HEATER (TOP OF FUEL FILTER ELEMENT) FUEL HTR FUSE FUEL INJECTORS FUEL RAIL PRESSURE SENSOR (UNDER INTAKE MANIFOLD SHIELD, ON FUEL RAIL) GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN, START LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 23 24 25 26 27 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL 28 29 30 31 PPL/WHT WIRE RED/BLK WIRE TAN WIRE TAN/WHT WIRE UNDER- HOOD FUSE BLOCK WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLUNT CUT) BRN WIRE BRN/WHT WIRE CRANKSHAFT POSITION SENSOR (RIGHT SIDE OF ENGINE) CRUISE CONTROL SYSTEM CRUISE FUSE DK BLU WIRE DK GRN/WHT WIRE FOG LP FUSE FUEL PUMP (AUXILIARY TANK (LEFT SIDE FRAME RAIL) GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK IND LOGIC LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR NCA WIRE OFF ON ORG/ WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE POWER TAKE OFF RELAY (NEAR UNDERHOOD FUSE BLOCK) POWER TAKE OFF SWITCH PPL PPL/WHT WIRE SET- TAN WIRE TURBOCHARGER VANE POSITION SENSOR UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLK WIRE YEL WIRE

1827 121 1020 2500 822 ANTI-LOCK BRAKES SYSTEM 23 1786 420 STARTING/ CHARGING SYSTEM 3 4 PNK WIRE 439 1320 25 2524 EXTERIOR LIGHTS SYSTEM STARTING/ CHARGING SYSTEM 5764 470 380 1589 INSTRUMENT CLUSTER SYSTEM 6-SPEED M/T 5-SPEED A/T A/C SYSTEM A/C SYSTEM INSTRUMENT CLUSTER SYSTEM ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CLASS 2 SERIAL COMPUTER DATA LINES SYSTEM DATA BUS - VSS SIG DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EGR MOTOR HIGH LOW REF A/C REFRIG SIG FUEL LEVEL SENSOR SIG ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) EXC SEO FUEL PUMP LOW REF FUEL RAIL TEMPERATURE (FRT) SENSOR FUSE GENERATOR SIG PARK/NEUTRAL SIG TCC BRAKE SIG GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IND INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL CLUSTER INTERNAL MODE SWITCH IPC/DIC FUSE LOW REF MIL CONTROL A/C COMPRESS LT BLU WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP ORG/ WIRE ORG/BLK WIRE PNK IGN 1 + CHMSL + CHARGE IND GENERATOR 2 SIG WIRE PNK PNK WIRE PNK WIRE PPL PPL 5 6 7 8 PPL PTO CONTROL ECM RELAY PPL/BLK WIRE PPL/WHT WIRE RED/BLK WIRE RPM OUT SEO TAN WIRE TAN/WHT WIRE TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) UNDERHOOD FUSE BLOCK VEHICLE SPEED SENSOR (LEFT REAR SIDE OF TRANS) VEHICLE SPEED SIG VEHICLE SPEED SIG ENG SPEED SIG IGN 0 + DATA BUS + VSS LOW SIG WAIT TO WAIT TO START WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE