Chevrolet Silverado 3500 (2002-2006) left i/p fuse block Wiring diagrams

BLK WIRE BLU WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY JUNCTION BLOCK BODY RELAY (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) BODY RELAY BLOCK BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) CARGO LAMP CARGO LP SW DOME LP SW DOME LP DFT CARGO/ FOG LAMP SWITCH CONSOLE COURTESY LAMP (SIERRA DENALI) COURTESY LAMP RELAY CTSY LP FUSE CTSY LP RLY LAMP REQUEST DK BLU WIRE DK BLU/WHT WIRE DOME LAMP DEFEAT SWITCH DOME LAMP SWITCH DRIVER DOOR COURTESY LAMP GAS DIESEL GRY WIRE GRY/BLK WIRE HEADLAMP DIMMER SWITCH HOT AT ALL TIMES I/P COMPART- MENT LAMP I/P JUNCTION BLOCK (ON LOWER RIGHT SIDE OF DASH) INADVERT RLY INADVERTENT POWER RELAY LEFT I/P COURTESY LAMP LEFT I/P FUSE BLOCK LEFT REAR DOOR COURTESY LAMP (CREW CAB) LEFT VANITY MIRROR LAMP OFF ON ORG/ WIRE OVERHEAD CONSOLE PPL READING LAMPS RIGHT FRONT DOOR COURTESY LAMP RIGHT I/P COURTESY LAMP RIGHT I/P FUSE BLOCK RIGHT REAR DOOR COURTESY LAMP (CREW CAB) RIGHT VANITY MIRROR LAMP TO BODY RELAY BLOCK (DIAGRAM 2 OF 2) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UNDERHOOD LAMP WHT WIRE

BASE CREWCAB BLK WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) DK BLU WIRE DK BLU/WHT WIRE DRIVER DOOR LOCK SWITCH DRIVER MINI WEDGE SWITCH DRIVER SWITCH FRONT PASSENGER MINI WEDGE SWITCH LEFT I/P FUSE BLOCK LEFT REAR MINI WEDGE SWITCH ORG/ WIRE PASS SWITCH REAR SW RIGHT I/P FUSE BLOCK RIGHT I/P FUSE BLOCK (ON LOWER RIGHT SIDE OF DASH) RIGHT REAR MINI WEDGE SWITCH TAN WIRE UPLEVEL CREWCAB WHT WIRE

1 14 26 SUPPLY VOLTAGE SUPPLY VOLTAGE LOW REF BACK ONLY IND BACK ONLY INDICATOR BACK ONLY SELECT BACK, CUSHION SELECT BATT + BCK, CSH SELECT BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DDM FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK LT DRIVER BACK HEATED SEAT ELEMENT DRIVER CUSHION HEATED SEAT ELEMENT DRIVER DOOR MODULE FRONT PASSENGER BACK HEATED SEAT ELEMENT FRONT PASSENGER CUSHION HEATED SEAT ELEMENT FRONT PASSENGER DOOR MODULE GRN WIRE GROUND GRY WIRE HI HEAT IND HI HEAT INDICATOR HOT AT ALL TIMES I/P RELAY BLOCK LEFT I/P FUSE BLOCK LOW HEAT IND LOW HEAT INDICATOR LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE MED HEAT IND MED HEAT INDICATOR MEMORY SEAT MODULE (UNDERSIDE OF LEFT FRONT SEAT) MEMORY/HEATED SEAT SWITCH ORG/ WIRE PDM FUSE PNK WIRE PPL RED WIRE RED/WHT WIRE RIGHT I/P FUSE BLOCK RT DOORS CIRCUIT BREAKER SEATS CIRCUIT BREAKER SERIAL DATA SWITCH POWER TAN WIRE WHT WIRE WHT/BLK WIRE YEL 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/C FUSE A/C RELAY ABS FUSE ACCESSORY POWER OUTLET AIR FUSE AUDIO AMPLIFIER AUTOMATIC TRANSMISSION CONTROL MODULE (ALLISON) BATTERY CABLE JUNCTION BLOCK BLK WIRE BODY CONTROL MODULE BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) CIGAR LIGHTER CTSY LP FUSE DATA LINK CONNECTOR (DLC) DIESEL ONLY DK GRN WIRE DK USED DRL FUSE EARLY SIERRA PRO ECM-B FUSE ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) POWERTRAIN CONTROL MODULE (PCM) EXTERIOR ILLUM LAMPS RELAY FOG LPS FUSE FOGLAMP RELAY FROM AIR FUSE (DIAGRAM 1 OF 4) FROM FUSE BLOCK (DIAGRAM 4 OF 4) FROM RAP FUSE (DIAGRAM 1 OF 4) PARK LAMPS FUSE FRONT BLOWER MOTOR RESISTOR ASSEMBLY FRONT PASSENGER WINDOW/DOOR LOCK SWITCH FRT HVAC FUSE FUEL PUMP RELAY FUSIBLE LINK GRN WIRE HAZARD FUSE HEADLAMP DAYTIME RELAY RUNNING LAMP (DRL) RELAY HEADLAMP DIMMER SWITCH HEADLAMP ROOF SWITCH BEACON RELAY HEADLAMP SWITCH HORN RELAY HVAC CONTROL MODULE INADVERTENT POWER RELAY INSTRUMENT DRIVER PANEL INFOR- CLUSTER MATION (IPC) CENTER (DIC) INTERIOR LIGHT SUSTEM LATE LEFT BATTERY LEFT GENERATOR LEFT I/P FUSE BLOCK LUXURY NCA WIRE ORG/ WIRE PARKLAMP RELAY PASSENGER DRIVER SEAT SEAT PWR WDO CB POWER TAKEOFF (PTO) RELAY RADIO RADIO FUSE RAP 1 FUSE RAP 2 FUSE RAP 2 RELAY RDO AMP FUSE REAR DEFOGGER RELAY REAR WHEEL STEERING CONTROL MODULE RED WIRE REMOTE CONTROL DOOR LOCK RECEIVER RIGHT GENERATOR (W/ DUAL GENERATOR) RIGHT REAR WINDOW SWITCH ROOF THERMO BEACON CUPHOLDER SWITCH ASSEMBLY SEO 1 FUSE SEO 2 FUSE SIERRA DENALI STARTER SOLENOID STOP LPS FUSE ATC FUSE STOPLAMP TRANSFER SWITCH CASE SHIFT MODULE TBC FUSE TO ECM B FUSE (DIAGRAM 1 OF 4) TO FUSE BLOCK (MIR/LOCK FUSE) (DIAGRAM 4 OF 4) TO FUSIBLE LINK (DIAGRAM 3 OF 4) TO IGN 1 RELAY (DIAGRAM 3 OF 4) TO IGN A FUSE (DIAGRAM 2 OF 4) AUX PWR FUSE CIGAR FUSE TO PARK LAMPS FUSE (DIAGRAM 1 OF 4) TRANSFER CASE ENCODER MOTOR TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT)

BASE BATTERY SERIAL DATA GROUND BLK WIRE BLK/WHT WIRE BLU WIRE BODY RELAY BLOCK BODY RELAY BLOCK (LEFT SIDE OF DASH, NEAR KICK PANEL) BRN WIRE CRUISE FUSE DK BLU WIRE DK GRN WIRE DOOR JAMB SW IN DRIVER MINI WEDGE SWITCH DRIVER POWER WINDOW/ DOOR LOCK SWITCH EXTERIOR LIGHTS FUSE BLOCK GRY WIRE HDLMP RLY CNTRL PARK LIGHTS IN KEY IN IGN HEADLAMP SWITCH HOT AT ALL TIMES UNDERHOOD FUSE BLOCK TBC FUSE HOT IN RUN HOT IN RUN OR START HOT WITH PARK LIGHTS ON IGN 1 FUSE IGNITION KEY ALARM SWITCH INSTRUMENT CLUSTER INSTRUMENT PANEL CLUSTER (IPC) INT PRK FUSE LEFT I/P FUSE BLOCK LOGIC LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PARK BRAKE SWITCH PNK IGNITION 1 IGNITION 3 SEAT BELT INPUT PARK BRAKE SW WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE COMPARTMENT) RIGHT TURN INPUT LEFT TURN INPUT GROUND SEAT BELT IND SEAT BELT SWITCH (ON DRIVER'S SEAT BELT BUCKLE) TAN WIRE TURN SIGNAL/ MULITFUNCTION SWITCH UNDERHOOD FUSE BLOCK WHT 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

27 28 29 PPL BATTERY 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 10 CRANKSHAFT POSITION SENSOR CRUISE CONTROL SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE ENGINE COOLANT TEMPERATURE (ECT) SENSOR ENGINE OIL LEVEL SWITCH (LEFT REAR OF OIL PAN) ENGINE OIL PRESSURE SENSOR (ON TOP REAR OF ENGINE) FUSE GROUND LOW REF GRY WIRE GRY/BLK WIRE HOT IN HOT IN OFF, RUN, START HOT IN RUN, START IA HTR DIAG 1 COOL LEV SIG IGN 0 FUSE IND CTRL SET/COAST SIG IGN 1 BATT LOW REF RES/ACC SIG INJ 1 CTRL INJ 4 CTRL EOP SIG INJ 8 CTRL INJ 3 CTRL LEFT I/P FUSE BLOCK LEV SW SIG PTO ENABLE 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 NCA WIRE ORG/ WIRE ORG/BLK WIRE PLUG SIG PNK WIRE PNK/BLK WIRE PPL PPL 20 21 PPL LOW REF LOW REF PTO TAKE OFF SWITCH/RELAY RED/BLK WIRE STARTING/CHARGING SYSTEM TAN WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM 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 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 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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 GND TCC CTRL SEC FUEL PMP A/C CLU A/C REQ A/C SYSTEM A/C SYSTEM 1310 419 ANTI-LOCK BRAKE SYSTEM (SPEED SIGNAL) AUTOMATIC TRANSFER CASE CONTROL MODULE (ABOVE HEADLIGHT SWITCH) BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE ENG CTRL DELIVERED TORQ DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EGR CTRL EVAP VENT MIL CTRL FRONT AXLE SWITCH (RIGHT SIDE OF CENTER ON AXLE HOUSING) FRT AXLE SW VSS LOW FUEL PMP RPM OUT RECIRC SW FUEL SIG CTRL FUSE GEN F TRANS MIL FUEL LEV CYC SW IN GEN L GRY BLK/ WIRE GRY WIRE GRY/BLK WIRE HOT IN RUN, START IAT SIG IGN CTRL IGN CTRL IGN CTRL IGN CTRL PPL 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 NCA WIRE NCA WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE RED/WHT WIRE REF LO REF LOW REF LOW RPM OUT SEC FUEL LVL SENS GND SPARK PLUG SPARK SPARK PLUG PLUG STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TRANSFER CASE SWITCH (LEFT FRONT OF TRANSAXLE CASE) UNDER- HOOD JUNCTION BLOCK VSS OUT VSS OUT W/ ATC WHT WIRE YEL WIRE YEL/BLK WIRE