GMC Sierra 2500 (2000-2004) lt blu Wiring diagrams

AUTO HEAD BASE EXCEPT CREW CAB 3 BULBS UPLEVEL, CREW CAB CLEARANCE LAMPS BLK WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) INSTRUMENT PANEL CLUSTER (IPC) BODY RELAY BLOCK BODY RELAY BLOCK (LEFT SIDE OF DASH, NEAR KICK PANEL) BODY RELAY RIGHT FRONT MARKER LAMP BLOCK (LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CENTER HIGH MOUNTED STOPLAMP (CHMSL) RIGHT FRONT PARK/ TURN LAMP CHMSL FUSE DK BLU WIRE DK DK DK GRN WIRE DRIVER OUTSIDE REAR- EMER- GENCY VEHICLE EMERGENCY VEHICLE ROOF LAMP RELAY (LEFT SIDE OF ENGINE COMPT) EXCEPT SIERRA EXT- ERIOR ILLUM- INATION LAMPS RELAY FRONT PASS- ENGER OUTSIDE REAR- VIEW MIRROR FUSE BLOCK (UNDER LEFT SIDE OF DASH) TURN FUSE GRN WIRE GRY WIRE HAZ LP FUSE HAZARD NORMAL HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN OR START INT PRK FUSE LEFT FRONT MARKER LAMP LEFT FRONT PARK/ TURN LAMP LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT TURN IND RIGHT TURN IND LEFT TURN IN PARK RLY CTRL EXT LMPS RLY LT (LEFT SIDE OF DASH) LEFT I/P FUSE BLOCK LT BLU WIRE LT DK LT LT LT PNK WIRE LT TURN FUSE FR PRK FUSE NCA WIRE ORG/ WIRE PARK PARK LAMP RELAY PARK LPS FUSE PNK WIRE PPL RED WIRE RIGHT I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) RIGHT LEFT RIGHT TURN IN INT PRK LMPS ROOF BEACON PROVISION (LEFT "B" PILLAR) ROOF BEACON RELAY (LEFT "B" PILLAR) ROOF MARKER LAMPS UNDER- HOOD FUSE BLOCK RR PRK FUSE RT TURN FUSE SEO 1 FUSE SEO 2 FUSE STARTER POWER SOLENOID DIST- RIBUTION STOP LAMP SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) STOP LPS FUSE TRAILER CIRCUIT TRAILER WIRING (BLUNT CUT) TURN SIGNAL/ MULTI-FUNCTION SWITCH TURN/HAZARD FLASHER UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT, NEAR BATTERY) VEH STOP FUSE LR PRK FUSE VIEW ROOF BEA- CON SWITCH MIRROR W/ ROOF BEACON PROVISIONS WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE LEFT LICENSE LAMP LEFT LICENSE LAMP RIGHT LICENSE LAMP LEFT MARKER LAMPS LEFT REAR PARK/ TURN SIGNAL LAMP LEFT REAR PARK/ TURN SIGNAL LAMP RIGHT REAR PARK/ TURN SIGNAL LAMP LEFT TAIL/ STOP LAMP LT BLU WIRE LT DK REAR LAMPS JUNCTION BLOCK (FRONT OF REAR BUMPER, ON CROSS- MEMBER) RIGHT LICENSE LAMP RIGHT MARKER LAMPS RIGHT REAR PARK/ TURN SIGNAL LAMP RIGHT TAIL/ STOP LAMP TAILGATE MARKER LAMP WHT WIRE

ASHTRAY LAMP BEZEL LAMP BIN LAMP) BLK WIRE BLU WIRE BLUNT CUT) BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) BRN WIRE CIGAR LIGHTER CONVENIENCE PACKAGE DIM IN DK GRN WIRE DRIVER HEATED SEAT SWITCH DRIVER POWER DOOR LOCK SWITCH DRIVER WINDOW/ DOOR LOCK SWITCH EXCEPT CONVENIENCE PACKAGE FRONT PASSENGER DOOR LOCK SWITCH FRONT PASSENGER DOOR LOCK SWITCH FRONT PASSENGER WINDOW SWITCH FRONT PASSENGER HEATED SEAT SWITCH GRY WIRE HEAD HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES PARK LPS FUSE I/P DIM INT PRK FUSE LEFT I/P FUSE BLOCK LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LEFT POWER DOOR LOCK SWITCH LEFT POWER WINDOW SWITCH LEFT REAR WINDOW SWITCH LT BLU WIRE ORG/ WIRE OUTSIDE REARVIEW MIRROR SWITCH PARK AUTO PARK LP RLY PARADE MODE PARK LP SIG PARKLAMP RELAY PPL/WHT WIRE RADIO REAR SEAT AUDIO CONTROLLER RIGHT I/P FUSE BLOCK RIGHT REAR WINDOW SWITCH UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE

A/T SHIFT LOCK 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 DRIVER SEAT SEAT FRONT HORIZONTAL VERTICAL POSITION MOTOR SENSOR DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT FRONT VERTICAL POSITION SENSOR DRIVER SEAT HORIZONTAL MOTOR DRIVER SEAT REAR VERTICAL MOTOR DRIVER SEAT REAR VERTICAL POSITION SENSOR DRIVER SEAT RECLINER MOTOR DRIVER SEAT RECLINER MOTOR POSITION SENSOR DRIVER WINDOW/ DOOR LOCK SWITCH FRONT VERT DN FRONT VERT UP FRT DN FRT UP FT VERT DN CTRL FT VERT POS SEN FT VERT UP CTRL GROUND GRY/BLK WIRE HALL EFFECT SENSOR HOR FWD HOR RWD HORIZ FWD HORIZ FWD CTRL HORIZ POS SEN HORIZ RWD HORIZ RWD CTRL HOT AT ALL TIMES HOT IN PARK IGN 3 FUSE IGN 3 VOLT LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) 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 SET SW MEMORY/HEATED SEAT SWITCH MIR/LOCK FUSE NCA WIRE NOT USED ORG/ WIRE PPL RCL 1 RCL 2 REAR DN REAR UP REAR VERT DN REAR VERT UP RECL FWD RECL RWD RECLINE FWD RECLINE FWD CTRL RECLINE POS SEN RECLINE RWD RECLINE RWD CTRL RED WIRE RR VERT DN CTRL RR VERT POS SEN RR VERT UP CTRL SEATS CIRCUIT BREAKER SENSOR GROUND SET- SHIFT INTERLOCK SYSTEM SUPPLY VOLT TAN WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPARTMENT, NEAR BATTERY) WHT WIRE YEL WIRE

BACK BLK WIRE DK BLU WIRE DK GRN WIRE FR DN FR UP FWD FRONT PASSENGER SEAT ADJUSTER SWITCH FRONT PASSENGER SEAT FRONT VERTICAL MOTOR FRONT PASSENGER SEAT HORIZONTAL MOTOR FRONT PASSENGER SEAT REAR RECLINER MOTOR FRONT PASSENGER SEAT REAR VERTICAL MOTOR HOT AT ALL TIMES I/P RELAY BLOCK LT BLU WIRE LT GRN WIRE ORG/ WIRE RED WIRE RR DN RR UP SEATS CIRCUIT BREAKER TAN WIRE YEL WIRE

ANTI-LOCK BRAKE SYSTEM B+ CLS 2 DATA CLS 2 DATA SENS GND REF LOW BLK WIRE BLK/WHT WIRE BODY CONTROL THEFT DETERRENT MODULE (BELOW CONTROL STEERING MODULE COLUMN) BRN WIRE BRN/RED WIRE COOLANT LEV DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ECMB FUSE ELECTRONIC SUSPENSION SYSTEM FUSE GND GND GRY WIRE HOT AT ALL TIMES HOT IN RUN, START HOT IN RUN, START LEFT I/P FUSE BLOCK IGN 0 FUSE INJA FUSE FUSE INJB FUSE INJECTORS KS SIGNAL KS SIGNAL CKP REQ TORQUE SERIAL DATA SERIAL DATA LIFT/DIVE SIG LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE OIL LEV ORG/ WIRE ORG/BLK WIRE PNK PNK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL PPL PPL SENS GND PPL/WHT WIRE PRND A BRK SW PRND P PPL PRND B CMP ECT SIG IGN RANGE B RANGE C IGN B+ REF LOW RED WIRE RED/BLK WIRE SENS GND SENS GND EGR INPUT SENS RTN TAN WIRE UNDER- HOOD FUSE BLOCK W/ REMOTE FUNCTION ACTUATOR W/O REMOTE FUNCTION ACTUATOR WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE COOLANT LEVEL SWITCH (IN COOLANT RESERVOIR) DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ECM-B FUSE ENGINE COOLANT TEMPERATURE SENSOR (LEFT FRONT OF CYLINDER HEAD) ENGINE OIL LEVEL SWITCH (RIGHT SIDE OF OIL PAN) FUEL PUMP RELAY GRY WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 1) (LEFT EXH PIPE, BEFORE CONVERTER) HEATED OXYGEN SENSOR (BANK 2 SENSOR 2) (RIGHT EXH PIPE, AFTER CONVERTER) HOT AT ALL TIMES KNOCK SENSOR (UNDER INTAKE MANIFOLD) LT BLU WIRE LT GRN WIRE NCA WIRE ORG/BLK WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK PNK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL PNK WIRE PPL PPL PPL/WHT WIRE PRIMARY FUEL PUMP, SENDER ASSEMBLY (IN FUEL TANK) RED WIRE SECONDARY FUEL PUMP RELAY SECONDARY FUEL PUMP, SENDER ASSEMBLY (IN FUEL TANK) TAN WIRE UNDER- HOOD FUSE BLOCK WHT WIRE WHT/ BLK WIRE YEL WIRE

1-2 SOL 2-3 SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLU WIRE BODY RELAY BLOCK BRAKE FUSE BRN WIRE BRN/RED WIRE CAMSHAFT POSITION SENSOR (TOP CENTER REAR OF ENGINE) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANISTER PURGE SOLENOID (TOP RIGHT REAR OF ENGINE) EVAP CANISTER VENT SOLENOID (RIGHT FRONT SIDE OF FUEL TANK) EXHAUST GAS RECIRCULATION VALVE (TOP RIGHT FRONT OF ENGINE) FUEL TANK PRESSURE SENSOR (IN FUEL TANK) GRY DK GRN WIRE GRY WIRE HOT IN RUN HOT IN RUN, START LEFT I/P FUSE BLOCK LT BLU WIRE LT BLU/WHT WIRE LT GRN GRY WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL PNK WIRE PPL/WHT WIRE RED WIRE RED/BLK WIRE REV STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) STOP LPS FUSE TAN WIRE TCC PWM SOL TFT SENSOR UNDER- HOOD FUSE BLOCK VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR ADAPTER WHT WIRE YEL WIRE YEL/BLK WIRE

ACT CNTRL APP SENS 1 APP SENS 2 APP SENS 3 BLK WIRE BLK/WHT WIRE BRN WIRE CRUISE CONTROL SYSTEM CRUISE REQ DATA DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECT FUSE FUSE GROUND GRY WIRE GRY/BLK WIRE HOT IN RUN OR START HOT IN RUN, START IAT SENSOR INTAKE AIR TEMPERATURE/ MASS AIRFLOW SENSOR (IN AIR INTAKE DUCT) IGN LEFT I/P FUSE BLOCK LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PPL PPL PNK PNK WIRE PPL/WHT WIRE R/A INPUT RED WIRE RED/BLK WIRE S/C INPUT SENS 1 GRD SENS 2 GRD SENS 3 GRD SENS GRD SIGNAL STP LP IN TAN WIRE THROTTLE POSITION SENSOR (W/ ELECTRONIC THROTTLE CONTROL) (ON THROTTLE BODY) TP SENS 1 TP SENS 2 UNDERHOOD FUSE BLOCK VEH STOP FUSE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 PNK PNK WIRE 29 30 31 PNK WIRE A/C CLU A/C REQ A/C SYSTEM A/C SYSTEM 1310 419 1223 1222 1827 ANTI-LOCK BRAKE SYSTEM ANTI-LOCK BRAKE SYSTEM (SPEED SIGNAL) AUTOMATIC TRANS- MISSION INPUT SHAFT SPEED SENSOR BLK WIRE BLK/ GRY WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE ENG CTRL DELIVERED TORQ PC SOL HI EGR CTRL PC SOL LO FUEL PMP RPM OUT RECIRC SW DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP VENT MIL CTRL 2-3 SS 1-2 SS VSS OUT VSS OUT TFT SENS SIG GEN F FUSE GEN L GRY WIRE GRY/BLK WIRE HOT IN RUN, START IAC COIL HI IAC COIL LO IAC COIL LO IAC COIL HI IDLE AIR CONTROL VALVE (TOP OF THROTTLE BODY) IGN IGN CTRL IGN CTRL IGN CTRL IGN CTRL IGN FEED GND EGR GND IGNITION COILS INSTRUMENT CLUSTER SYSTEMS (SPEED SIGNAL) INSTRUMENT PANEL CLUSTER MALFUNCTION INDICATOR LAMP LEFT I/P FUSE BLOCK LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAF SIG MAP SIG RECIRC DOOR EVAP CANP NCA WIRE PNK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL FUEL LEV CYC SW IN PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE REF LO REF LOW REF LOW PRND C TRANS RNG A FUEL SIG CTRL RPM OUT SEC FUEL LVL SENS GND SPARK PLUG SPARK SPARK PLUG PLUG STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TP SIG IAT SIG IGN CTRL IGN CTRL IGN CTRL IGN CTRL TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLIGHT SWITCH) UNDERHOOD FUSE BLOCK VSS LOW VSS HIGH WHT WIRE YEL WIRE YEL/BLK WIRE