Chevrolet Silverado 3500 (2002-2006) blk Wiring diagrams

61 33 (DIESEL) (GAS) 46 49 ABS FUSE ANTI-LOCK IND BLK WIRE BLK/WHT WIRE BRAKE IND BRN WIRE BRN/WHT WIRE CLUTCH START SWITCH (M/T) (TOP OF CLUTCH CLUTCH ASSY) CPP SW SIG DEL TORQUE SIG DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF INNER FRAME) EXCEPT SEO GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) BRAKE FUSE IGN E FUSE IGNITION INSTRUMENT CLUSTER LEFT FRONT SENSOR (-) RIGHT FRONT SENSOR (+) BRAKE INPUT LEFT FRONT WHEEL SPEED SENSOR LOGIC LT BLU WIRE LT GRN/BLK WIRE NCA WIRE OF TRANSFER CASE) OF TRANSMISSION) ORG/BLK WIRE PNK WIRE POWERTRAIN OR ENGINE CONTROL MODULE (PCM OR ECM) (ON LEFT FRONT OF ENG COMPT) PPL PPL DATA LINK CONNECTOR (DLC) (BELOW STEERING COLUMN) PPL PPL PPL/WHT WIRE RED WIRE SEO SEO IGN FUSE STOPLAMP SWITCH (ON TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TCC BRAKE SW TRACTION CONTROL IND (IF EQUIPPED) TRACTION CONTROL SWITCH TRANSFER CASE SHIFT CONTROL MODULE TRANSMISSIONS SYSTEM TRANSMISSIONS SYSTEM (TRANSFER CASE CIRCUIT) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) VSS HIGH VSS LOW VSS OUTPUT YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 HALL A SIG HALL B SIG SENS GND POS 2 SIG 5 VOLT REF B+ VOLT B+ VOLT SERIAL DATA BASE BASE CASE GND GND B+ VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE CASE GROUND COMPUTER DATA LINES SYSTEM CRUISE FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUSE GRY WIRE HALL A SIG HALL B SIG SENS GND HALL C SIG HALL C SIG RLY VOLT SENS GND POS 1 SIG 5 VOLT REF HOT AT ALL TIMES HOT IN HOT IN RUN LEFT I/P FUSE BLOCK IGN 3 FUSE I/P RELAY BLOCK (LOWER LEFT SIDE OF DASH) INSTRUMENT CLUSTER SYSTEM LOW REF LT BLU WIRE LT GRN WIRE MEGA FUSE MODE IND CTRL LAT ACCEL SIG ORG/ WIRE PHASE A CTRL PHASE B CTRL PHASE C CTRL PNK PNK WIRE PNK WIRE POS A SIG POS B SIG POWER DISTRIBUTION SYSTEM PPL PULSE SIG REAR WHEEL POSITION SENSOR (LEFT REAR OF VEHICLE) REAR WHEEL STEERING CONTROL MODULE (NEAR SPARE TIRE BRACKET) REAR WHEEL STEERING MODE SELECT SWITCH RED WIRE RLY GND RUN WIRE SENS SIG STEERING GEAR MOTOR ASSEMBLY (NEAR SPARE TIRE BRACKET) STEERING WHEEL SPEED/ POSITION SENSOR (ON STEERING COLUMN) TAN WIRE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE HOLDER VSS IGN 3 VOLT YAW SENS SIG MODE SW SIG WHT WIRE YEL WIRE

BLK WIRE GROUND HOT IN RUN AND START I/P RELAY BLOCK I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INTERIOR LIGHTING SYSTEMS LEFT FRONT SHOCK ABSORBER SOLENOID (PART OF LEFT FRONT SHOCK) LEFT REAR SHOCK ABSORBER SOLENOID (PART OF LEFT REAR SHOCK) LOGIC NORMAL/ FIRM PNK WIRE PPL RIDE INDICATOR RIDE SIGNAL RIGHT FRONT SHOCK ABSORBER SOLENOID (PART OF RIGHT FRONT SHOCK) RIGHT REAR SHOCK ABSORBER SOLENOID (PART OF RIGHT REAR SHOCK) SELECTABLE RIDE SWITCH SEO IGN FUSE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE

ACCESSORY VOLTAGE BLK WIRE DK BLU WIRE GROUND LSD GRY WIRE HI LO OFF HOT AT ALL TIMES HOT IN RUN AND ACC LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LO PULSE MIST MIST WASH OFF ORG/ WIRE PNK WIRE RED WIRE TAN WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) W/S WASH FUSE W/S WASH RELAY W/S WIPER FUSE WINDSHIELD WASHER FLUID PUMP (ON WASHER FLUID RESERVOIR) WINDSHIELD WASHER RELAY CNTRL WINDSHIELD WIPER HIGH SIGNAL WINDSHIELD WIPER MOTOR MODULE (UNDER WINDSHIELD COWL) WINDSHIELD WIPER SUPPLY VOLTAGE WINDSHIELD WIPER SWITCH SIGNAL WINDSHIELD WIPER/ WASHER SWITCH YEL WIRE

2524 806 1786 STARTING SYSTEM 28 29 PPL 508 84 439 440 1868 87 CRUISE SYSTEM 632 1324 CRUISE CONTROL SYSTEM BATTERY CLASS 2 DATA CLASS 2 DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CAN-LOW CAN-HIGH CKP SIGNAL COOLANT LEVEL SWITCH (IN COOLANT RESERVOIR) CRANK FUSE CRUISE SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUSE GROUND LOW REF GRY WIRE GRY/BLK WIRE HOT IN HOT IN OFF, RUN, START LEFT I/P FUSE BLOCK IGN 0 FUSE HOT IN RUN, START IA HTR SPLY COOL LEV SIG IND CTRL SET/COAST SIG IGN 1 BATT LOW REF RES/ACC SIG INJ 1 CTRL INJ 4 CTRL INJ 8 CTRL INJ 3 CTRL LEV SW SIG PTO ENABLE LOW REF LOW REF LOW REF LOW REF SPLY VOLT LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE ORG/ WIRE ORG/BLK WIRE PARK/NEUTRAL POSITION SWITCH PLUG SIG PNK WIRE PNK/BLK WIRE PPL PPL LOW REF APP SENS SIG RED/BLK WIRE SPLICE PACK TAN WIRE TURN ON SIG CRANK VOLT P/N SIG CCP SW SIG INJ 2 CTRL INJ 5 CTRL PPL UNDER- HOOD FUSE BLOCK VACUUM SENSOR VACUUM SIG WATER IN FUEL SENSOR (ON FUEL FILTER ELEMENT) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

28 29 PPL 30 SERIES 20 SERIES APP 1 APP 3 APP 2 ACCELERATOR PEDAL POSITION SENSOR (BEHIND ACCELERATOR PEDAL) BATTERY BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (FRONT OF ENGINE) DK BLU WIRE DK BLU/RED WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/RED WIRE DK GRN/WHT WIRE ECMPRV FUSE EDU RELAY FUEL HEATER (TOP OF FUEL FILTER ELEMENT) FUEL PUMP (AUXILIARY TANK (LEFT SIDE FRAME RAIL) FUEL PUMP RELAY FUSE HOLDER FUSIBLE LINK GLOW PLUG CONTROLLER GLOW PLUGS GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES BATTERY FUSE HOT IN RUN, START UNDERHOOD FUSE BLOCK FUEL HT FUSE IGN 1 INTAKE AIR HEATER INTAKE AIR HEATER RELAY LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PCMB FUSE PLUG 1 V+ PLUG 2 V+ PLUG 3 V+ PLUG 4 V+ PLUG 5 V+ PLUG 6 V+ PLUG 7 V+ PLUG 8 V+ PLUG SIG PNK 18 19 WIRE PNK WIRE PNK/BLK WIRE PNK/YEL WIRE PPL RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RELAY CTRL TAN WIRE WHT/BLK WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE CAN HI CAN LOW DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE SPD FUEL INJECTOR CONTROL MODULE (UNDER AIR INTAKE DUCT) FUEL INJECTORS GROUND GRY WIRE HOT IN RUN, START IGN IGN 2,3,5,8 IGN POS INJ 1 CTRL INJ 2 CTRL INJ 3 CTRL INJ 4 CTRL INJ 5 CTRL INJ 6 CTRL INJ 7 CTRL INJ 8 CTRL 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 ORG/BLK WIRE ORG/WHT WIRE PNK PNK 11 12 13 WIRE PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE TAN WIRE UNDERHOOD FUSE BLOCK WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BARO SENSOR (LEFT SIDE OF ENGINE) BLK WIRE BLUNT CUT) BOOST SENSOR (RIGHT SIDE OF ENGINE) BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FOG LP FUSE FUEL PRESSURE SENSOR (TOP LEFT SIDE OF ENGINE) FUSE GRY WIRE GRY/BLK WIRE HOT IN RUN HOT IN RUN, START IND LOGIC INTAKE AIR TEMPERATURE (IAT)/ MASS AIRFLOW (MAF) SENSOR (IN AIR INDUCTION TUBE) LEFT I/P FUSE BLOCK LT BLU WIRE LT GRN WIRE OFF ON ORG/ WIRE ORG/BLK WIRE PNK PNK 11 12 13 WIRE PNK PNK 14 15 WIRE PNK WIRE POWER TAKE OFF RELAY (UNDERHOOD FUSE BLOCK BRACKET) POWER TAKE OFF SWITCH PPL RED WIRE SET- TAN WIRE TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLK WIRE YEL WIRE

2524 806 1786 STARTING SYSTEM 508 84 439 440 1868 87 CRUISE SYSTEM 632 1324 CRUISE CONTROL SYSTEM BATTERY CLASS 2 DATA CLASS 2 DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CAN-LOW CAN-HIGH CKP SIGNAL COOLANT LEVEL SWITCH (IN COOLANT RESERVOIR) CRANK FUSE CRUISE SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUSE GROUND LOW REF GRY WIRE GRY/BLK WIRE HOT IN HOT IN OFF, RUN, START LEFT I/P FUSE BLOCK IGN 0 FUSE HOT IN RUN, START IA HTR SPLY COOL LEV SIG IND CTRL SET/COAST SIG IGN 1 BATT LOW REF RES/ACC SIG INJ 1 CTRL INJ 4 CTRL INJ 8 CTRL INJ 3 CTRL LEV SW SIG PTO ENABLE LOW REF LOW REF LOW REF LOW REF SPLY VOLT LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE ORG/ WIRE ORG/BLK WIRE PARK/NEUTRAL POSITION SWITCH PLUG SIG PNK WIRE PNK/BLK WIRE PPL PPL 28 29 PPL LOW REF APP SENS SIG RED/BLK WIRE SPLICE PACK TAN WIRE TURN ON SIG CRANK VOLT P/N SIG CCP SW SIG INJ 2 CTRL INJ 5 CTRL PPL UNDER- HOOD FUSE BLOCK WATER IN FUEL SENSOR (ON FUEL FILTER ELEMENT) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

20 SERIES 30 SERIES APP 2 ACCELERATOR PEDAL POSITION SENSOR (BEHIND ACCELERATOR PEDAL) APP 3 APP 1 BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (FRONT OF ENGINE) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECMPRV FUSE EDU RELAY FUEL HEATER (TOP OF FUEL FILTER ELEMENT) 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 UNDERHOOD FUSE BLOCK FUEL HT FUSE INTAKE AIR HEATER INTAKE AIR HEATER RELAY LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PCMB FUSE PNK WIRE PNK/BLK WIRE PNK/YEL WIRE PPL PPL 28 29 RED WIRE RED/BLK WIRE TAN WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE