Chevrolet Silverado 3500 (2002-2006) blk Wiring diagrams

AUTO PARK BACK-UP LAMPS CIRCUIT BLK WIRE BLK/WHT WIRE BLU WIRE BLUNT CUT (W/ CAMPER BLUNT CUT) BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK LT EMERGENCY VEHICLE ROOF LAMP RELAY FRT PARK FUSE GRN WIRE GRY WIRE GRY/BLK WIRE HARN, NEAR TRAILER CONNECTOR BREAKOUT) HAZARD SWITCH HEAD HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN AND START I/P RELAY BLOCK IGN E FUSE LEFT FRONT MARKER LAMP LEFT FRONT PARK/ TURN SIGNAL LAMP LEFT RIGHT LT BLU WIRE LT GRN WIRE OFF PARK LAMP RELAY PNK WIRE PRK LMP ON RED WIRE RIGHT FRONT MARKER LAMP RIGHT FRONT PARK/ TURN SIGNAL LAMP SERIAL DATA PRK LMP RLY STUD 1 FUSE STUD 2 FUSE TO TRL PARK FUSE TRAILER CONNECTOR TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHEEL TRAILER WIRING PROVI- SIONAL) WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DK NOT USED FROM FRT PARK FUSE (DIAGRAM FUSE FUSIBLE LINK HOT AT ALL TIMES I/P RELAY BLOCK INT PARK FUSE LEFT FRONT CLEAR- ANCE LAMP LEFT REAR CLEAR- ANCE LAMP LEFT LICENSE LAMP LEFT REAR TURN SIGNAL LEFT TAIL/ STOP LAMP LT (NOT USED) LT BLU WIRE LT GRN WIRE LT LEFT REAR MARKER LAMP ORG/ WIRE REAR LAMPS JUNCTION BLOCK RED WIRE RIGHT FRONT CLEAR- ANCE LAMP RIGHT I/P FUSE BLOCK RIGHT LICENSE LAMP RIGHT REAR CLEAR- ANCE LAMP RIGHT REAR TURN SIGNAL RIGHT TAIL/ STOP LAMP ROOF BEACON RELAY (AT LOWER LEFT "B" PILLAR ROOF BEACON SWITCH RR PARK FUSE LR PARK FUSE STOP LAMP SWITCH STOP LP FUSE TAILGATE MARKER LAMP TRL PARK FUSE UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) W/ EMERGENCY VEHICLE ROOF LAMP LIGHTING W/ PTO W/ ROOF BEACON LIGHTING W/ WRECKER LIGHTING W/DUAL REAR AXLE W/O DUAL DK REAR AXLE RIGHT REAR MARKER LAMP W/O DUAL REAR AXLE WHT WIRE WRECKER RELAY YEL WIRE

1 2 6 9 GROUND LT TURN SIG VOLT LT DOOR LMP PWR LT DOOR LMP GND 22 11 SERIAL DATA LT TURN SIG VOLT 22 26 SERIAL DATA RT TURN SIG 4.3L 5 9 RT DOOR LMP PWR RT DOOR LMP GND BATTERY BLK WIRE BLK/WHT WIRE BLU WIRE BLUNT CUT (W/ CAMPER BRN WIRE BRN/WHT WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) CLEARANCE LAMPS COMPUTER DATA LINES SYSTEM CRUISE CONTROL MODULE DK BLU WIRE DK GRN WIRE DRIVER DOOR MODULE (DDM) (IN DRIVER'S DOOR) DRIVER OUTSIDE REARVIEW MIRROR EXT- ERIOR ILLUM LAMP FRONT PASSENGER DOOR MODULE (FPDM) (IN RIGHT FRONT DOOR) GROUND GRY/BLK WIRE HAZARD FUSE HAZARD SW HOT AT ALL TIMES I/P RELAY BLOCK I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LEFT ROOF MARKER LAMP LEFT TURN IND LOGIC LR LAMP VOLT LT BLU WIRE LT GRN WIRE LT TRLR ST/TURN FUSE LT TURN FUSE LT TURN SIG ORG/BLK WIRE PASSENGER OUTSIDE REARVIEW MIRROR RED WIRE RIGHT I/P FUSE BLOCK RIGHT ROOF MARKER LAMP RIGHT TURN IND RR LAMP VOLT RT TRLR ST/TURN FUSE RT TURN FUSE RT TURN SIG RT TURN SIG VOLT STOPLAMP SW TAN WIRE THROTTLE ACTUATOR CONTROL MODULE TRAILER WIRING (BLUNT CUT) TRAILER WIRING PROVISIONAL) TURN IND TURN SIGNAL/FLASHER MODULE UNDER- HOOD FUSE BLOCK RIGHT I/P FUSE BLOCK VEH CHMSL FUSE VEH STOP FUSE WHT WIRE YEL WIRE

20 SERIES 23 24 PNK WIRE 27 28 29 PPL 30 SERIES ACCELERATOR PEDAL POSITION SENSOR (BEHIND ACCELERATOR PEDAL) BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECMRPV FUSE EDU RELAY FUEL HEATER FUEL PUMP (AUXILIARY TANK (LEFT SIDE FRAME RAIL) FUEL PUMP RELAY FUSE HOLDER GLOW PLUG RELAY GLOW PLUG/ INTAKE HEATER RELAY ASSEMBLY GLOW PLUGS GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES BATTERY FUSE HOT IN RUN, START UNDER- HOOD FUSE BLOCK FUEL HT FUSE INTAKE AIR HEATER INTAKE AIR HEATER RELAY INTAKE AIR TEMPERATURE (IAT)/ MASS AIRFLOW (MAF) SENSOR (IN AIR INDUCTION TUBE) LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PCMB FUSE PNK WIRE PNK/BLK WIRE PNK/YEL WIRE PPL PPL 20 21 RED WIRE RED/BLK WIRE TAN WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

23 24 PNK WIRE BARO SENSOR BLK WIRE BLK/WHT WIRE BOOST SENSOR CAN HI CAN LOW DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE SPD FUEL INJECTOR CONTROL MODULE FUEL INJECTORS FUEL PRESSURE SENSOR FUSE GROUND GRY WIRE GRY/BLK WIRE HOT IN RUN, START IGN IGN 2,3,5,8 IGN POS INJB FUSE LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/GRN WIRE LT GRN/ORG WIRE LT GRN/PPL WIRE LT GRN/RED WIRE LT GRN/WHT WIRE NCA WIRE ORG/BLK WIRE ORG/WHT WIRE PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE TAN WIRE UNDER- HOOD FUSE BLOCK WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

A/C SYSTEM ANTI-LOCK BRAKES SYS B+ CLS 2 DATA BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CMP SIG ECT SIG IGN INJ 5 CTRL INJ 8 CTRL PTO ENGAGE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE FUSE FUSE FUSE GRY WIRE HOT AT ALL TIMES HOT IN ACCY, RUN, START HOT IN RUN, START I/P FUSE BLOCK IGN 0 FUSE INJ 7 CTRL INJ 4 CTRL INJECTORS KS SIGNAL CKP SIG REQ TORQ SIG SERIAL DATA SERIAL DATA KS SIGNAL PTO STATUS LEV SW SIG LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE OIL LEV SW SIG PTO ENG KILL ORG/ WIRE ORG/BLK WIRE PCMB FUSE PNK IGN B+ REF LOW PTO ENABLE SW REF LOW GND WIRE PNK PNK 2 3 WIRE PNK PNK 27 28 WIRE PNK PNK 4 5 6 7 8 9 10 11 12 13 WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE COMPT) PPL PPL BRK SW SIG P/N SIG CPP SW SIG INJ 1 CTRL INJ 6 CTRL PPL PPL PPL PPL 31 32 33 34 35 36 37 PPL/WHT WIRE RED/BLK WIRE REF LOW REF LOW GND RLY CTRL GND STARTING/ CHARGING SYSTEM TAN WIRE TAN/WHT WIRE UNDER- HOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 PNK WIRE ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COOLANT LEVEL SWITCH (IN COOLANT RESERVOIR) DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE SENSOR (MIDDLE OF RIGHT CYLINDER HEAD) ENGINE OIL LEVEL SWITCH (RIGHT SIDE OF OIL PAN) FUEL PUMP RELAY FUEL PUMP RELAY (SECONDARY) (DUAL TANKS) (ON UNDERHOOD FUSE BLOCK BRACKET) FUEL PUMP, SENDER ASSEMBLY (PRIMARY) (IN FUEL TANK) GRY WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 1) (LEFT EXH PIPE, BEFORE CONVERTER) HEATED OXYGEN SENSOR (BANK 1 SENSOR 2) (LEFT EXH PIPE, AFTER CONVERTER) HEATED OXYGEN SENSOR (BANK 2 SENSOR 1) (RIGHT EXH PIPE, BEFORE CONVERTER) HEATED OXYGEN SENSOR (BANK 2 SENSOR 2) (RIGHT EXH PIPE, AFTER CONVERTER) HOT AT ALL TIMES HOT IN RUN, START INTERNAL MODE SWITCH KNOCK SENSOR (BANK 1) (LEFT SIDE OF ENGINE) KNOCK SENSOR (BANK 2) (ON RIGHT SIDE OF ENGINE) LT BLU WIRE LT GRN WIRE NCA WIRE ORG/BLK WIRE PCM B FUSE PNK PNK 2 3 WIRE PNK PNK 27 28 WIRE PNK PNK 4 5 6 7 8 9 10 11 12 13 WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL PPL 31 32 33 34 35 36 37 PPL/BLK WIRE PPL/WHT WIRE RED/WHT WIRE SBA FUSE TAN WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE

1 2 PNK WIRE BLK WIRE BLK/WHT WIRE BLUNT CUT BLUNT CUT BLUNT CUT) BRAKE FUSE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (LEFT SIDE OF TIMING COVER) CRUISE CONTROL SYSTEM CRUISE FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN GRY WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE OIL PRESSURE (EOP) SENSOR (LEFT REAR OF ENGINE) EVAPORATIVE EMISSIONS CANISTER VENT SOLENOID (RIGHT FRONT SIDE OF FUEL TANK) FOG LP FUSE FUEL TANK PRESSURE SENSOR (ON FUEL TANK) GRY LT GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK IND LOGIC LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) OFF ON SET ORG/ WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER TAKE OFF RELAY (NEAR UNDERHOOD FUSE BLOCK) POWER TAKE OFF SWITCH PPL PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE RED/WHT WIRE STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) STOP LPS FUSE TAN WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM UNDER- HOOD FUSE BLOCK UNDERHOOD FUSE BLOCK VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION/ TRANSFER CASE) WHT WIRE YEL WIRE

ACT CNTRL APP SENS 1 APP SENS 2 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/ECM FUSE FUSE GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK IGN LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PPL PPL PNK PNK WIRE PPL/WHT WIRE R/A INPUT RED WIRE RED/WHT WIRE REF LOW S/C INPUT SIGNAL STP LP IN TAC CTRL TAN WIRE TAN/WHT WIRE THROTTLE ACTUATOR CONTROL MODULE (LEFT REAR OF ENGINE COMPT) TP SENS 1 TP SENS 2 UNDERHOOD FUSE BLOCK VEH STOP FUSE WHT WIRE WHT/BLK WIRE YEL WIRE

400 (OR 821) A/C SYSTEM A/C SYSTEM STARTING/CHARGING SYSTEM A/T ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLU RLY CTRL CLUTCH SW AXLE SW SIG VSS LOW SIG VSS HIGH SIG CRANK FUSE CTRL DELIVERED TORQ DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANP CTRL EVAP VENT CTRL MIL CTRL EXC SEO FUEL LEV SENS FUEL PRESS SIG FUSE GEN 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 M/T MAF SIG MAP SIG MIL REQUEST NCA WIRE ORG/ WIRE ORG/BLK WIRE PMP RLY CTRL RPM OUT PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (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 REF LOW PRESS SENS SIG CRANK VOLT REF LOW REF LOW RPM OUT SEO SPARK PLUG SPARK PLUG SPARK PLUG STARTING SYSTEM STARTING SYSTEM TRANSMISSIONS SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANS- MISSION CONTROL MODULE UNDER- HOOD FUSE BLOCK VSS OUT VSS OUT WHT WIRE YEL (OR PPL/WHT) WIRE YEL WIRE YEL/BLK WIRE