Chevrolet Silverado 3500 (2002-2006) blk Wiring diagrams

A/T ISS SIG LOW VSS SIG LOW A/T SHIFT LEVER ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BRAKE FUSE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRNK FUSE DATA BUS H DATA BUS L DK BLU WIRE DK BLU/BLK WIRE DK GRN WIRE FLD PRESS SW SIG 4 TCC PCS LOW FLD PRESS SW SIG 2 TURB SPEED SW SIG GRD GRD B+ GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, ACC, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IGN 0 FUSE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAIN MALFUNC IND LAMP NCA WIRE ORG/ WIRE ORG/WHT WIRE PNK 10 11 12 WIRE PNK 7 8 9 WIRE PNK FLD PRESS SW SIG 1 VSS SIG HIGH WIRE PNK IGN 0 VOLT WIRE PNK PNK PNK WIRE PNK PPL WIRE PNK WIRE PPL PPL CRANK VOLT PPL PPL 1 2 PPL/WHT WIRE PRESS CONTROL SOLE 2 PTO SIG RANGE SW SIG A MAIN PRESS SOLENOID RED WIRE RED/BLK WIRE RUN WIRE SERIAL DATA DATA BUS L SHIFT SOLENOIDS SOLENOIDS STOPLAMP SWITCH (ON BRAKE PEDAL BRACKET) TAN WIRE TAN/WHT WIRE TCC PSC TR SW SIG B TFT SENSOR SIG TR SW SIG C TR SW SIG P TURB SPEED SW UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) TCM B FUSE WHT WIRE YEL WIRE YEL/BLK WIRE

56 39 PNK IGNITION PARK/NEUTRAL SIG WIRE ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR DK BLU WIRE DK BLU/BLK WIRE DK GRN WIRE ENGINE CONTROLS SYSTEM EXCEPT SEO FUSE GRY WIRE HOT AT ALL TIMES INPUT SPEED SENSOR (IN TRANSMISSION) INSTRUMENT PANEL CLUSTER (IPC) INTERNAL MODE SWITCH IPC/DIC FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP OF TRANSMISSION) ORG/ WIRE ORG/BLK WIRE P/N PNK 10 11 12 WIRE PNK 7 8 9 WIRE PNK WIRE PNK/BLK WIRE PPL PPL PPL PPL PPL 1 2 PPL/BLK WIRE PPL/WHT WIRE PRESSURE SWITCH MANIFOLD PTO STATUS RED WIRE RED/BLK WIRE SEO SPLICE PACK TAN WIRE TAN/WHT WIRE TFT SENSOR TOW/HAUL SWITCH TRANSFER CASE) TURBINE SPEED SENSOR (IN TRANSMISSION) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) BATTERY) VEHICLE SPEED SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE

A/T ISS SIG LOW VSS SIG LOW A/T SHIFT LEVER ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BRAKE FUSE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRNK FUSE DATA BUS H DATA BUS L DK BLU WIRE DK BLU/BLK WIRE DK GRN WIRE FLD PRESS SW SIG 4 TCC PCS LOW FLD PRESS SW SIG 2 TURB SPEED SW SIG GRD GRD B+ GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, ACC, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IGN 0 FUSE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAIN MALFUNC IND LAMP NCA WIRE ORG/ WIRE ORG/WHT WIRE PNK 10 11 12 WIRE PNK 7 8 9 WIRE PNK FLD PRESS SW SIG 1 VSS SIG HIGH WIRE PNK IGN 0 VOLT WIRE PNK PNK PNK WIRE PNK PPL WIRE PNK WIRE PPL PPL CRANK VOLT PPL PPL 1 2 PPL/WHT WIRE PRESS CONTROL SOLE 2 PTO SIG RANGE SW SIG A MAIN PRESS SOLENOID RED WIRE RED/BLK WIRE RUN WIRE SERIAL DATA DATA BUS L SHIFT SOLENOIDS SOLENOIDS STOPLAMP SWITCH (ON BRAKE PEDAL BRACKET) TAN WIRE TAN/WHT WIRE TCC PSC TR SW SIG B TFT SENSOR SIG TR SW SIG C TR SW SIG P TURB SPEED SW UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) TCM B FUSE WHT WIRE YEL WIRE YEL/BLK WIRE

AUXILIARY BATTERY RELAY (RIGHT REAR OF ENG COMPT) BATTERY BATTERY NOT CHARGING BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE INDICATOR CONTROL CLASS 2 SERIAL DATA COMPUTER DATA LINES DK GRN WIRE DRIVER INFO CENTER ENGINE CONTROL MODULE (ECM) (ON LEFT FRONT OF ENGINE COMPARTMENT) FUSIBLE LINK 1 (8 GA- FUSIBLE LINK 2 (8 GA- FUSIBLE LINK 5 (5 GA- FUSIBLE LINK 6 (5 GA- GENERATOR 2 GENERATOR FIELD DUTY CYCLE SIGNAL GROUND GRY WIRE HOT IN RUN, START I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN 1 VOLT IGN E FUSE INSTRUMENT PANEL CLUSTER LEFT BATTERY LEFT GENERATOR LOGIC MEGA FUSE PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RIGHT BATTERY RIGHT BATTERY (W/AUX BATTERY) RIGHT GENERATOR SEO IGN FUSE SERIAL DATA CLASS 2 STARTER UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT) VOLTS W/ SEO W/AUX BATTERY W/DUAL BATTERIES W/O SEO WRECKER OPTION

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)

ALLISON TRANSMISSION B/U LMP VLT BATTERY BLK WIRE BLUNT CUT (W/ CAMPER BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE COMPUTER DATA LINES SYSTEM DIESEL ENGINE CONTROL MODULE (AT LEFT FRONT OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) LEFT BACK-UP LAMP LT BACK-UP ALARM LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PRESS SW PRESSURE SWITCH MANIFOLD REAR LAMPS JUNCTION BLOCK REV SIG RIGHT BACK-UP LAMP SERIAL DATA TRAILER CONNECTOR TRAILER WIRING PROVISIONAL) TRANSMISSION CONTROL MODULE (AT LEFT FRONT OF ENGINE COMPT) TRLR B/U FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) YEL WIRE

B/U LMP VLT B/U LMPS SIG B/U LP FUSE BLK WIRE BLUNT CUT (W/ CAMPER BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) GRN WIRE GRY WIRE GRY/BLK WIRE HOT IN RUN OR START LEFT BACK-UP LAMP LT BACK-UP ALARM LT GRN WIRE PARK/NEUTRAL POSITION (PNP) SWITCH (LEFT SIDE OF TRANSMISSION) PNK A/T WIRE PNK M/T WIRE PNK WIRE REAR LAMPS JUNCTION BLOCK RIGHT BACK-UP LAMP TRAILER CONNECTOR TRAILER WIRING PROVISIONAL) TRLR B/U FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT)

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