Chevrolet Silverado 3500 (2002-2006) hot in run or start Wiring diagrams

ABS FUSE ABS IND PNK WIRE BLK WIRE BLK/WHT WIRE BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) BRAKE FLUID LEVEL SW IN BRAKE FLUID LEVEL SWITCH (ON LEFT SIDE OF BRAKE FLUID RESERVOIR) BRAKE FUSE BRAKE IND BRAKE INPUT SERIAL DATA BRN WIRE CLUTCH START SWITCH (TOP OF CLUTCH CLUTCH ASSY) CPP SW SIG DIESEL DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF INNER FRAME) ENGINE CONTROLS SYSTEM FRONT AXLE ACT/SW INPUT VSS INPUT LEFT FRONT SENSOR (+) RIGHT FRONT SENSOR (-) FRONT AXLE ACTUATOR/ SWITCH (ON AXLE HOUSING) GAS GROUND MOTOR, SOLENOID PWR GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START IGN 1 FUSE IGNITION LEFT FRONT SENSOR (-) RIGHT FRONT SENSOR (+) INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED SENSOR LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LOGIC LT BLU WIRE LT GRN/BLK WIRE M/T ONLY NCA WIRE OF TRANSFER CASE) PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (DLC) (BELOW STEERING COLUMN) PPL/ PPL/ PPL/ PPL/ PPL/WHT WIRE RED WIRE RIGHT FRONT WHEEL SPEED SENSOR SIDE OF TRANSMISSION) STOPLAMP SWITCH (ON TOP OF BRAKE PEDAL BRACKET) TAN WIRE TRANSFER CASE SHIFT CONTROL MODULE (LEFT SIDE OF DASH, BEHIND HEADLAMP SWITCH) TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VEHICLE SPEED SENSOR (VSS) VEHICLE SPEED SENSOR ADAPTER VSS HIGH VSS LOW VSS OUTPUT WHT WIRE YEL WIRE YEL/BLK WIRE

ABS FUSE ABS IND. BLK WIRE BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) BRAKE FLUID LEVEL SWITCH (ON LEFT SIDE OF BRAKE FLUID RESERVOIR) BRAKE FUSE BRAKE IN BRAKE IND BRN WIRE BRN/WHT WIRE DEL TORQUE DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF INNER FRAME) GAS DIESEL GROUND DISTRIBUTION SYSTEM GROUND MOTOR, SOLENOID PWR GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START IGN 1 FUSE IGNITION LEFT FRONT SENSOR (-) RIGHT FRONT SENSOR (+) DELIVERED TORQUE INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED SENSOR LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LOGIC LOW TRACTION INDICATOR ILLUM LAMP LT BLU WIRE LT GRN/BLK WIRE NCA WIRE OF TRANSFER CASE) ORG/BLK WIRE PNK PNK POWER DISTRIBUTION SYSTEM WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT OF ENGINE COMPT) PPL PPL 1122 832 PPL DATA LINK CONNECTOR (DLC) (BELOW STEERING COLUMN) PPL/WHT WIRE RED WIRE REQ TORQUE RIGHT FRONT WHEEL SPEED SENSOR SERVICE TRAC CNTL SIG SIDE OF TRANSMISSION) STOPLAMP SWITCH (ON TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TRACTION CONTROL SWITCH TRACTION OFF INDICATOR UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VEHICLE SPEED SENSOR (VSS) VEHICLE SPEED SENSOR ADAPTER VSS HIGH VSS LOW VSS OUT WHT WIRE YEL WIRE YEL/BLK 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 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)

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

AMBIENT LIGHT SENSOR (ON TOP CENTER OF DASH) BLK WIRE BLU WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) BRAKE SW SIG DRL RELAY BRN WIRE DAYTIME RUNNING LAMPS (DRL) RELAY DK BLU WIRE DK DK DK GRN/WHT WIRE DRL FUSE EXTERIOR LAMPS SYSTEM (PARK LAMP RELAY) FLASH TO PASS FOG LAMP RELAY FOG LAMP SWITCH FOG LP RELAY FTP IN HIGH BEAM FOG LP SW FTP IN AL SENS SIG AL SENS REF FOG LPS FUSE GASOLINE DIESEL GRN WIRE GRY WIRE HEAD HEADLAMP DIMMER SWITCH HEADLAMP RELAY HOT AT ALL TIMES HOT IN RUN OR START IGNE FUSE LEFT DAYTIME RUNNING LAMP RIGHT DAYTIME RUNNING LAMP LEFT FOG LAMP LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LT BLU WIRE LT GRN/BLK WIRE LT HDLP FUSE NCA WIRE ON INDICATOR ORG/ WIRE PARK AUTO PARK BRAKE SWITCH (PARK BRAKE ASSEMBLY) PICKUPS UTILITIES PPL PPL HIGH PPL PPL PPL/ PPL/ PPL/ RIGHT FOG LAMP RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP RT HDLP FUSE SPLICE TBC FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

A/C COMP RELAY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C FUSE A/C HIGH PRESSURE RECIRCULATION SWITCH (IN A/C MUFFLER HOSE) A/C HIGH PRESSURE SWITCH (REAR OF COMPRESSOR) A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C REQUEST A/C SWITCH AIR TEMPERATURE ACTUATOR (BOTTOM CENTER OF BLK WIRE BLOWER MOTOR (UNDER RIGHT SIDE OF DASH) BLOWER MOTOR RELAY ASSEMBLY (ON HVAC MODULE, NEAR BLOWER MOTOR) BLOWER RELAY BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) BRN WIRE CTRL RECIRC DOOR DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FRT HVAC FUSE GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HTR A/C FUSE HVAC 1 FUSE HVAC CONTROL ASSEMBLY HVAC CONTROL MODULE (BEHIND CENTER OF DASH) IGN E FUSE LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOW OFF LT BLU WIRE MODE ACTUATOR (LEFT SIDE OF HVAC MODULE) ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE OF ENGINE COMPT) PPL PRESS SW A/C HIGH REAR DEFOG RLY IGN 3 VOL A/C REQUEST ACT POS SIG RECIRCULATION ACTUATOR (TOP OF HVAC MODULE) RED WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE YEL WIRE

11 11 17 17 (GASOLINE) (DIESEL) A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C FUSE A/C HIGH PRESS SW A/C HIGH PRESSURE RECIRCULATING SWITCH (IN A/C MUFFLER HOSE) A/C HIGH PRESSURE SWITCH (REAR OF COMPRESSOR) A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C REQUEST A/C SWITCH AIR TEMPERATURE ACTUATOR (BOTTOM CENTER OF BLK WIRE BLOWER MOTOR (UNDER RIGHT SIDE OF DASH) BLOWER MOTOR RESISTOR ASSEMBLY (ON HVAC MODULE, NEAR BLOWER MOTOR) BLOWER RELAY BRN WIRE DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FRT HVAC FUSE GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HTR A/C FUSE HVAC 1 FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) HVAC MODULE IGN E FUSE LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LO OFF LT BLU WIRE MODE ACTUATOR (LEFT SIDE OF HVAC MODULE) ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE COMPT) PPL REAR DEFOG RLY IGN 3 VOL A/C REQUEST ACT POS SIG RECIRC DOOR CTRL RECIRCULATION ACTUATOR (TOP OF HVAC MODULE) RED WIRE RELAY CTRL A/C COMP RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE YEL 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

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

ACCELERATOR PEDAL POSITION SENSOR ACT CNTRL APP SENS APP SENS 1 APP SENS 2 APP SENS 3 APP SENSE 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 ETC FUSE GROUND GRY WIRE GRY/BLK WIRE HOT IN RUN OR START IAT SENSOR IGN LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MASS AIRFLOW SENSOR (IN AIR INTAKE DUCT) ORG/BLK WIRE PNK PNK WIRE PNK WIRE PPL PPL PNK PNK WIRE PPL/WHT WIRE R/A INPUT RED WIRE RED/WHT WIRE S/C INPUT SENS 1 GRD SENS 1 RT SENS 2 GRD SENS 2 RT SENS 3 GRD SENS 3 RT SENS GRD SIGNAL STP LP IN TAN WIRE TAN/BLK WIRE THROTTLE ACTUATOR CONTROL (TAC) MODULE (RIGHT REAR OF ENGINE COMPT) THROTTLE ACTUATOR CONTROL MOTOR (NEAR FRONT OF ENGINE COMPT) THROTTLE POSITION SENSOR (DUAL TRACK) (NEAR FRONT OF ENG COMPT) TP SENS 1 TP SENS 2 UNDER- HOOD JUNCTION BLOCK VEH STOP FUSE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE