GMC Sierra 1500 HD (2001-2006) brn Wiring diagrams

BLK WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY JUNCTION BLOCK (UNDER LEFT SIDE OF DASH, NEAR LEFT KICK PANEL) BRN WIRE CARGO LAMP CARGO LAMP SWITCH CARGO LP SW DOME LP SW RT DR JAMB LT DOOR JAMB DOME LP DFT COURTESY LAMP RELAY CTSY LP FUSE CTSY LP RLY LAMP REQUEST DK BLU WIRE DK BLU/WHT WIRE DOME LAMP DOME LAMP DEFEAT SWITCH DOME LAMP SWITCH FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) GRY WIRE GRY/BLK WIRE HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES INADVERT RLY INADVERTANT POWER RELAY LEFT I/P COURTESY LAMP LEFT MINI WEDGE (DOOR JAMB SWITCH) ORG/ WIRE PPL RIGHT I/P COURTESY LAMP RIGHT MINI WEDGE (DOOR JAMB SWITCH) TAN WIRE UNDERHOOD JUNCTION BLOCK (ON LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UNDERHOOD LAMP ASSEMBLY OFF ON WHT WIRE

A/T SHIFT LOCK BACK BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE BTSI FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER WINDOW/ DOOR LOCK SWITCH DRIVER' SEAT ADJUSTMENT SWITCH FRONT VERT DN FRONT VERT UP FRT DN FRT UP FT VERT DN CTRL FT VERT POS SEN FT VERT UP CTRL FUSE BLOCK (LOWER LEFT SIDE OF DASH) GROUND GRY/BLK WIRE HALL EFFECT SENSOR HORIZ FWD HORIZ FWD CTRL HORIZ POS SEN HORIZ RWD HORIZ RWD CTRL HOT AT ALL TIMES HOT IN RUN IGN 3 FUSE IGN 3 VOLT LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MEMORY 1 SW PPL MEMORY 2 SW MEMORY SEAT MODULE (UNDERSIDE OF DRIVER'S SEAT) MEMORY SEAT SWITCH MEMORY SET SW MIR/LOCK FUSE NCA WIRE NOT USED ORG/ WIRE PPL RCL 1 RCL 2 RCL BACK RCL FWD REAR DN REAR UP REAR VERT DN REAR VERT UP RECLINE FWD RECLINE FWD CTRL RECLINE POS SEN RECLINE RWD RECLINE RWD CTRL RECLINER MOTOR (UNDER DRIVER'S SEAT) RED WIRE RR VERT DN CTRL RR VERT POS SEN RR VERT UP CTRL SEAT FRONT VERTICLE MOTOR (UNDER DRIVER'S SEAT) SEAT HORIZONAL MOTOR (UNDER DRIVER'S SEAT) SEAT REAR VERTICAL MOTOR (UNDER DRIVER'S SEAT) SEATS CIRCUIT BREAKER SET- SHIFT INTERLOCK SYSTEM SUPPLY VOLT TAN WIRE UNDERHOOD JUNCTION BLOCK (AT LEFT SIDE OF ENGINE COMPARTMENT, NEAR BATTERY) WHT WIRE YEL WIRE

AUTO HEAD BLK WIRE BLU WIRE BODY JUNCTION BLOCK (LEFT SIDE OF DASH) BODY JUNCTION BLOCK (LEFT SIDE OF DASH) RIGHT FRONT MARKER LAMP BRN WIRE CENTER HIGH MOUNT STOP LAMP/ CARGO LAMP DK CLEAR- ANCE LAMPS 3 BULBS ROOF MARKER LAMPS CRUISE CONTROL SYSTEM DK BLU WIRE FUSE BLOCK (LOWER LEFT SIDE OF DASH) FUSE BLOCK (UNDER LEFT SIDE OF DASH) TURN FUSE GRN WIRE GRY WIRE HAZ LP FUSE HAZARD NORMAL HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES HOT IN RUN OR START I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) INSTRUMENT CLUSTER BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) LT INT PRK FUSE LEFT FRONT MARKER LAMP LEFT FRONT PARK/ TURN LAMP LEFT LICENSE LAMP LEFT TAIL/ STOP- LAMP RIGHT TAIL/ STOP- LAMP LEFT OUTSIDE POWER MIRROR LEFT TURN IN LEFT TURN IND RIGHT TURN IND LT BLU WIRE LT DK LT DK TRAILER WIRING PROVISION LT LT LT LT DK DK LT PNK WIRE LT TURN FUSE FR PRK FUSE NCA WIRE ORG/ WIRE PARK PARK LAMP RELAY PARK LPS FUSE PNK WIRE PPL PUDDLE LAMP RELAY REAR LAMPS JUNCTION BLOCK (FRONT OF REAR BUMPER, ON CROSS- MEMBER) RIGHT FRONT PARK/ TURN LAMP RIGHT LEFT RIGHT LICENSE LAMP RIGHT OUTSIDE POWER MIRROR RIGHT REAR TURN LAMP LEFT REAR TURN LAMP RIGHT TURN IN PARK RLY CTRL PUDDLE RLY CTRL ROOF BEACON PROVISION ROOF BEACON RELAY (LEFT "B" PILLAR) ROOF BEACON SWITCH RR PRK FUSE RT TURN FUSE CHMSL FUSE SEO 1 FUSE SEO 2 FUSE STOP LAMP SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) STOP LPS FUSE SEO 1 FUSE THROTTLE ACTUATOR CONTROL MODULE TRAILER CIRCUIT TURN/ HAZARD SWITCH TURN/HAZARD FLASHER UNDERHOOD JUNCTION BLOCK (LEFT SIDE OF ENG COMPT, NEAR BATTERY) UPLEVEL BASE VEH STOP FUSE LR PRK FUSE WHT WIRE YEL WIRE

1382 39 INTERIOR LIGHTS SYSTEM ABS IND. AIR BAG IND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE BODY RELAY BLOCK BODY RELAY BLOCK (UNDER LEFT SIDE) BODY WIRING RELAY BLOCK BRAKE IND BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL MODULE CRUISE FUSE CRUISE IND DATA LINES DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER ENG SPD SERIAL IGN 1 ENGINE OIL PRESSURE SENSOR EXTERIOR LIGHTS SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM (DIESEL) FUEL GAUGE GAS GND VSS OIL PRESS GRY WIRE HIGH BEAM IND HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) RADIO FUSE HOT IN HOT IN OFF, RUN OR START HOT IN RUN AND START IGN IGN 1 FUSE IGN O FUSE IGNITON 1 OFF/RUN/ ILLUM PWR ILLUMINATION INSTRUMENT CLUSTER LED DIM LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LEFT TURN IND LO WASHER FLUID LOGIC LOW WASH LT BLU WIRE MESSAGE CENTER NCA WIRE NOT USED NOT USED OIL GAUGE ORG/ WIRE PARK SW PARK SWITCH (PART OF THE PARK BRAKE ASSEMBLY) PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT OF ENGINE COMPT) PPL/WHT WIRE RADIO RIGHT TURN IND RUN WIRE SEAT BELT IND SERVICE ENGINE SOON IND SHIFT IND SPARE SPEEDOMETER TACH OUT TACHOMETER TAN/WHT WIRE TEMP GAUGE TRANS TEMP GAUGE TRIP ODOMETER HOUR METER UNDERHOOD FUSE BLOCK VOLTS GAUGE VSS OUT WAIT TO START WASHER FLUID LEVEL SWITCH (IN WASHER FLUID RESERVOIR) WHT WIRE

ASHTRAY LAMP BASE BLK WIRE BLUNT CUT) BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY JUNCTION BLOCK (UNDER LEFT SIDE OF DASH, NEAR LEFT KICK PANEL) BRN WIRE DIM IN DK GRN WIRE DRIVER HEATED SEAT SWITCH FOG/ CARGO LAMP SWITCH FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) ILLUM FUSE GRN WIRE GRY WIRE HEAD HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES PARK LPS FUSE HVAC CONTROL MODULE I/P DIM I/P JUNCTION BLOCK (ON LOWER RIGHT SIDE OF DASH) INFLATABLE RESTRAINT I/P MODULE SWITCH INSTRUMENT CLUSTER INT PRK FUSE LEFT POWER DOOR LOCK SWITCH LEFT POWER WINDOW SWITCH LEFT POWER WINDOW/ DOOR LOCK SWITCH LT BLU WIRE NCA WIRE ORG/ WIRE PARK AUTO PARK LP RLY PARADE MODE PARK LP SIG PARKLAMP RELAY POWER MIRROR SWITCH PPL PPL/WHT WIRE RADIO PPL/ ROOF BEACON SWITCH SELECT- ABLE RIDE SWITCH TRACTION ASSIST SWITCH TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD JUNCTION BLOCK (ON LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UP LEVEL BASE WHT WIRE

A/C DRL RELAY RELAY AIR BAG FUSE SEO IGN FUSE AUTOMATIC TRANSMISSION (W/O ALLISON) TRANSMISSION CONTROL MODULE (W/ ALLISON) AUXILARY POWER OUTLET B/U LP FUSE IGN E FUSE BLK WIRE BODY CONTROL MODULE BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) BRN WIRE BULB TEST CAMSHAFT PARK/ POSITION NEUTRAL (CMP) POSITION SENSOR SWITCH (A/T) (4.3L) CRANK FUSE IGN O FUSE CRUISE CONTROL ON/OFF SWITCH EVAPORATIVE EMISSION (EVAP) CANISTER PURGE SOLENOID EXT LPS FUSE FROM CIGAR FUSE (DIAGRAM 1 OF 4) FUEL HEATER HEATED (DIESEL) OXYGEN SENSOR GAS ONLY GLOW PLUG CONTROLLER (DIESEL) GRN WIRE I/P LEFT FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) IGN A FUSE IGN B FUSE IGN C FUSE IGNITION SWITCH INSIDE INSTRUMENT REARVIEW PANEL MIRROR CLUSTER (IPC) INSIDE TEMPERATURE SENSOR PNK ASSEMBLY WIRE INSTRUMENT INSTRUMENT PANEL PANEL CLUSTER CLUSTER (IPC) (IPC) LT GRN WIRE LT PNK WIRE NCA WIRE OFF OFF BULB TEST ORG/ WIRE PNK PNK (CANADA BUILT) (OTHERS) WIRE PNK PNK PNK (CANADA BUILT) (OTHERS) (CANADA BUILT) (OTHERS) WIRE PNK PNK PNK PNK WIRE PNK PNK PNK WIRE PNK PNK PPL/ PNK (GAS) (DIESEL) WIRE PNK PNK WIRE PNK WIRE PRO REAR DEFOG RELAY RED WIRE RED/WHT WIRE RR HVAC FUSE RR WPR FUSE RTD FUSE RUN WIRE SELECTABLE BATTERY RIDE MONITOR SWITCH SIERRA SPLICE PACK PNK WIRE STARTER RELAY STUD 1 FUSE STUD 1 STUD 2 STUD 2 FUSE SWITCH (M/T) TO HTR/ A/C FUSE (DIAGRAM 3 OF 4) TO IGN 1 RELAY (DIAGRAM 3 OF 4) TO IGN 1 RELAY (DIAGRAM 3 OF 4) ENG 1 FUSE TO RETAINED ACCESSORY POWER RELAY (DIAGRAM 4 OF 4) RR WIPER FUSE TRACTION DRIVER ASSIST INFORMATION SWITCH CENTER (DIC) TRAILER TRAILER CONNECTOR WIRING TRANS CONTROL MODULE TRANSFER CASE SHIFT CONTROL SWITCH TURN FUSE IGN 1 FUSE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) W/ ALLISON WHT WIRE WINDSHIELD CRUISE WIPER CONTROL MOTOR MODULE MODULE WINDSHIELD WASHER SWITCH WS WIPER FUSE SEO ACCY FUSE CRUISE FUSE YEL WIRE

44 19 (DIESEL) (GAS) AIR TEMPERATURE ACTUATOR ALL OTHER GAS 4.3L ALL OTHER GAS 4.3L FUEL INJECTOR PNK PNK CONTROL MODULE WIRE AUXILIARY BATTERY RELAY BASE BLK WIRE BRAKE FUSE BRN WIRE DIESEL DIESEL GAS DIESEL GAS BLOWER MOTOR SWITCH (MANUAL) ECM PRV FUSE (DIESEL) ENGINE CONTROL MODULE (ECM)/ PNK PNK POWERTRAIN CONTROL MODULE (PCM) WIRE ETC FUSE FROM CRUISE FUSE (DIAGRAM 2 OF 4) FROM ENG 1 FUSE (DIAGRAM 2 OF 4) FROM ECM B FUSE (DIAGRAM 1 OF 4) FROM FUSE LINK (DIAGRAM 1 OF 4) FROM IGN C FUSE (DIAGRAM 2 OF 4) FRONT AXLE ACTUATOR FRONT PASSENGER HEATED SEAT SWITCH FUEL FUEL FUEL INJECTOR 4 INJECTOR 2 INJECTOR 8 FUEL INJECTOR 1 FUEL INJECTOR 3 FUEL INJECTOR 5 FUEL INJECTOR 6 FUEL INJECTOR 7 FUSE GAS HTR A/C FUSE HVAC 1 FUSE HVAC CONTROL MODULE IGN 1 RELAY IGN 3 FUSE IGNITION COIL 1 IGNITION COIL 3 IGNITION COIL 5 IGNITION IGNITION COIL 2 COIL 4 IGNITION IGNITION COIL COIL 7 IGNITION IGNITION IGNITION COIL 8 COIL 6 COIL MODULE INJ A FUSE INJ B FUSE MEGA FUSE MEMORY DRIVER SEAT HEATED MODULE SEAT SWITCH UPLEVEL MODE ACTUATOR NCA WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE REAR REAR WHEEL WHEEL STEERING STEERING SWITCH CONTROL MODULE RECIRCULATION ACTUATOR RECIRCULATION AIR MODE ACTUATOR TEMPERATURE ACTUATOR ACTUATOR RED WIRE RIGHT BATTERY RIGHT BATTERY FUSIBLE LINK RIGHT I/P FUSE BLOCK (ON LOWER RIGHT SIDE OF DASH) STOPLAMP ELECTRONIC SWITCH BRAKE CONTROL MODULE (EBCM) THROTTLE ACTUATOR CONTROL MODULE TRANSFER CASE SHIFT CONTROL MODULE UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT)

BLK WIRE BRN WIRE DEFOGGER SYSTEM DOWN DRIVER OUTSIDE REARVIEW MIRROR DRIVER POWER WINDOW/ DOOR LOCK SWITCH FUSE BLOCK GRN WIRE HEATING ELEMENT HOT AT ALL TIMES MIR/ LOCK FUSE LEFT LEFT RIGHT LEFT/ RIGHT MOTOR LT GRN WIRE MEMORY SYSTEMS NCA WIRE ORG/ WIRE OUTSIDE REARVIEW MIRROR SWITCH PASSENGER OUTSIDE REARVIEW MIRROR PPL PPL/WHT WIRE RED WIRE RIGHT UP/ DOWN MOTOR WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BODY CONTROL MODULE BODY RELAY BLOCK (LEFT SIDE OF DASH) BRN WIRE CAMPER EXTENSION CAMPER IN-LINE CONNECTOR CAMPER WIRING (PICKUP ONLY) CHMSL FUSE DK HOT WITH PARKLAMP RELAY ENERGIZED DK LT DK GRN WIRE HEAVY DUTY TRAILER WIRING HOT IN REVERSE (UTILITIES) HOT AT RUN AND START (PICKUP) HOT WITH BACK-UP LAMP SWITCH CLOSED HOT WITH PARKLAMP RELAY ENERGIZED HOT WITH STOPLAMP HOT AT SWITCH ALL TIMES DEPRESSED HOT WITH STOPLAMP SWITCH DEPRESSED INT PRK FUSE LIGHT DUTY TRAILER WIRING (PICKUP ONLY) LT DK LT DK LT DK LT GRN WIRE LT PICKUP ONLY NCA WIRE RED WIRE SPLICE PACK 203 STUD 1 STUD 1 MAXI FUSE CHMSL FUSE STUD 2 TRAILER IN-LINE CONNECTOR TRAILER WIRING (BLUNT CUT) TRL L TRN FUSE TRL PRK FUSE TRL R TRN FUSE TRL R TRN FUSE TRL PRK FUSE TRLR B/U FUSE TURN/ HAZARD SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT, NEAR BATTERY) UTILITIES ONLY VEH B/U FUSE WHT WIRE YEL WIRE

33 34 35 PNK WIRE A/C SYSTEM A/C SYSTEM STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRANK FUSE CSS SIG AXLE SW SIG VSS LOW SIG VSS HIGH SIG AT ISS HIGH SIG AT ISS LOW SIG CTRL CYCLE SIG DELIVERED TORQ PC SOL HI CTRL DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANP CTRL EVAP VENT CTRL MIL CTRL 2-3 SS CTRL 1-2 SS CTRL VSS OUT VSS OUT TFT SENS SIG EXC SEO FUEL LEV SENS FUSE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN, START HOT IN START IAT SIG IGN CTRL IGN CTRL IGN CTRL IGN CTRL PPL IGN IGN CTRL IGN CTRL IGN CTRL IGN CTRL IGN FEED GND IGNITION COILS INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL CLUSTER IPC/DIC FUSE LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAF SIG MAP SIG MALFUNCTION INDICATOR LAMP NCA WIRE ORG/ WIRE PC SOL LO CTRL PMP RLY CTRL RPM OUT PNK 11 12 13 14 15 16 17 WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL FUEL LEV SIG PPL PNK PNK WIRE PPL/WHT WIRE PRESS SENS SIG IND CTRL RED WIRE RED/BLK WIRE RED/WHT WIRE REF LO REF LOW RPM OUT SEO SPARK PLUG SPARK SPARK PLUG PLUG STARTING/CHARGING SYSTEM STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC SOL CTRL CLU RLY CTRL UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE