Chevrolet Cab & Chassis Silverado 3500 HD (2008-2011) tan/blk Wiring diagrams

ABS PUMP MOTOR ABS-1 FUSE 61 FUSE 56 ABS-2 FUSE 9 FUSE 8 AGLE SNS A BLK WIRE BLK/WHT WIRE BRK SNS VEH SPD SIG LOW REF BRN WIRE CAN H GND CAN L B+ GMLAN + GMLAN + LOW REF AGLE SNS B AGLE SNS C RR WHL SNS COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF FRAME ASSEMBLY) GMLAN - GMLAN - PWR BRK H GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT FRONT WHEEL SPEED SENSOR (WSS) (ON LEFT FRONT STEERING KNUCKLE) LEFT REAR WHEEL SPEED SENSOR (WSS) (ON LEFT REAR BRAKE BACKING PLATE) LF WHL SNS COMM DATA LOGIC LR WHL SNS LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PPL/WHT WIRE PWR BRK L ANGLE SNS RADIO RED WIRE RED/BLK WIRE RF WHL SNS RIGHT REAR WHEEL SPEED SENSOR (WSS) (ON RIGHT REAR BRAKE BACKING PLATE) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ LUXURY EDITION W/O LUXURY EDITION EXCEPT 6.6L YEL WIRE YEL/BLK WIRE

12 13 PPL BRK SIG 16 17 19 GMLAN + GMLAN - COMM DATA ABS INDICATOR BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE BOOSTER VACUUM SENSOR (LEFT REAR OF ENGINE COMPT) BRAKE FLUID LEVEL SWITCH (ON MASTER CYLINDER) BRAKE INDICATOR COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE EXCEPT 4.3L, 5.3L (VIN O), 5.3L (VIN 3), 6.0L (VIN K) GRY WIRE GRY/WHT WIRE I/P MULTI-FUNCTION SWITCH INSTRUMENT PANEL CLUSTER (IPC) LOGIC LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) POWER BRAKE BOOSTER (LEFT REAR OF ENGINE COMPT) PPL PPL/WHT WIRE PRK BRK SW RIGHT FRONT WHEEL SPEED SENSOR (WSS) (ON RIGHT FRONT STEERING KNUCKLE) STEERING ANGLE SENSOR (ON STEERING COLUMN) STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) TAN WIRE TAN/BLK WIRE TRACTION SW YEL WIRE YEL/BLK WIRE

12 13 PPL BRK SIG 16 17 19 GMLAN + GMLAN - COMM DATA 6.0L ABS INDICATOR ABS PUMP MOTOR ABS-1 FUSE 61 FUSE 56 B+ GMLAN + GMLAN + BRK SNS BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE FLUID LEVEL SWITCH BRAKE INDICATOR COMM DATA VEH SPD SIG COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF FRAME ASSEMBLY) ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) EXCEPT 6.0L (VIN K) FUEL SYSTEM CONTROL MODULE (FSCM) (UNDER REAR OF VEHICLE) GRY WIRE GRY/WHT WIRE HEAVY DUTY ABS FUSE 59 FUSE 55 HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) INSTRUMENT PANEL CLUSTER (IPC) LEFT FRONT WHEEL SPEED SENSOR (WSS) (ON LEFT FRONT STEERING KNUCKLE) LF WHL SNS LOGIC LOW REF GND GMLAN - GMLAN - VEH SPD SIG LT BLU WIRE NCA WIRE ORG/ WIRE ORG/WHT WIRE PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) POWER TAKE OFF (PTO) MODULE (OUTSIDE OF RIGHT FRONT CHASSIS FRAME) PPL PRK BRK SW RADIO RED WIRE RED/BLK WIRE RF WHL SNS RIGHT FRONT WHEEL SPEED SENSOR (WSS) (ON RIGHT FRONT STEERING KNUCKLE) STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) TAN WIRE TAN/BLK WIRE W/ LUXURY EDITION W/O LUXURY EDITION EXCEPT 6.6L 6.6L YEL WIRE YEL/BLK WIRE

19 14 69 71 RLY SPD SIG 22 21 4 58 40 24 30 46 LOW REF ECT SENS SIG 4.8L, 5.3L, 6.2L 4.3L 6.0L 6.6L A/C CMPRSR FUSE 17 (EXCEPT 6.6L) FUSE 16 (6.6L) A/C CMPRSR RELAY BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLING FAN (FRONT CENTER OF ENGINE COMPT) EXCEPT 6.6L 6.6L GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HVAC BATT FUSE 39 HVAC BLWR FUSE 70 HVAC IGN FUSE 55 (EXCEPT 6.6L) FUSE 52 (6.6L) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE ORG/BLK WIRE PNK WIRE PPL RED/BLK WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RLY CTRL RUN/ CRNK RELAY SENS SIG PWRTRN RLY CTRL FAN RLY CTRL FAN RLY CTRL SPD SIG LOW REF SYSTEM TAN WIRE TAN/BLK WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

AMBIENT LT SENS SIG HEADLAMP SW HEADLAMP ON SIG ANTI-LOCK BRAKES SYSTEM POWER DISTRIBUTION SYSTEM BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COURTESY LAMPS CTRL CRUISE CONTROL SYSTEM DIM FUSE 7 DK BLU/WHT WIRE DK GRN WIRE GRY WIRE HEADLAMP SW HEADLAMP OFF SIG COURTESY LAMP SUPPLY VOLT HEADLAMP SW PARK LAMP SIG HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM INTERIOR LIGHTS SYSTEM HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, IG 3 VOLT CRUISE CTRL SW SIG 5 VOLT REF WIPER SW HI SIG STEER WHL CTRL SW SIG IGNITION SWITCH KEY-IN IGNITION SWITCH LOW REF WIPER SW LOW SIG LT BLU WIRE LT GRN WIRE OFF ORG/ WIRE PNK WIRE PNK/BLK WIRE PPL PPL INTERIOR LAMP DEFEAT SW SIG RED/WHT WIRE RUN WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRACTION CTRL SW SIG ACCESSORY VOLT WHT WIRE WIPER/WASHER SYSTEM SOUND SYSTEMS WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM YEL WIRE YEL/BLK WIRE

ACCESSORY WAKEUP SERIAL DATA ANTI-LOCK BRAKES ANTI-THEFT SYSTEM BATTERY BCM FUSE 15 BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE SW SIG COMPUTER DATA LINES SYSTEM CRUISE CONTROL, SEATS SYSTEMS CRUISE CTRL IND DIM SIG CTSY FUSE 5 DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRL RELAY CTRL EXHAUST BRK SW SIG EXTERIOR LIGHTS SYSTEMS FOG LAMP RELAY CTRL FRONT FOG LAMP SW SIG/ENABLE GAS DIESEL GROUND GRY WIRE HEADLAMP HI BEAM RELAY CTRL HEADLIGHTS SYSTEM HI SPD GMLAN SERIAL DATA BUS + HOOD AJAR SW SIG HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, I/P LAMP DIMMER SW SIG INDICATOR DIM CTRL INSTRUMENT CLUSTER SYSTEM INTERIOR LIGHTS, EXTERIOR LIGHTS SYSTEMS IPC FUSE 46 FUSE 43 IS LPS FUSE 17 LED BACKLIGHT DIM CTRL LINER INTERCONNECT BUS LO SPD SERIAL DATA LT BLU WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT STOP TRN FUSE 6 LT TRLR TURN SIG LAMP ORG/ WIRE ORG/WHT WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RED WIRE RED/WHT WIRE RF TURN SIG LAMP SUPPLY RT STOP TRN FUSE 8 RT TRLR TURN SIG LAMP RUN/CRANK RELAY CTRL SECURITY IND CTRL SERIAL DATA COMM ENABLE STOP LAMPS FUSE 12 TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK WASHER RELAY CTRL WHT WIRE WIPER MOTOR PARK SW SIG WIPER/WASHER SYSTEM YEL WIRE

1 5 B(+) GMLAN L 2501 2500 COMPUTER DATA LINES SYSTEM 3340 5060 COMPUTER DATA LINES SYSTEM 4.3L 6.6L EXCEPT 4.3L, 6.6L 4.3L A/C CMPRSR FUSE 17 (EXCEPT 6.6L) FUSE 16 (6.6L) A/C CMPRSR RELAY A/C IND A/C ON A/C REFRIGERANT PRESSURE SENSOR (NEAR COMPRESSOR, ON A/C HIGH PRESSURE HOSE) BLK WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) GROUND GRY WIRE HOT AT ALL TIMES HVAC BATT FUSE 39 (EXCEPT 6.6L) FUSE 36 (6.6L) HVAC CONTROL MODULE LOGIC MANUAL A/C AUTOMATIC A/C ORG/BLK WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT)

2 OR MORE OF W/ ONSTAR, AUDIO AMPLIFIER (IF EQUIPPED) (UNDER REAR OF CENTER CONSOLE) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) CHIME MODULE (CENTER OF DASH, BEHIND RADIO) DATA LINK CONNECTOR (DLC) (LOWER LEFT SIDE OF DASH) DIGITAL RADIO RECEIVER (BEHIND RIGHT END OF DASH) DIGITAL RADIO RECEIVER (IF EQUIPPED) (BEHIND RIGHT END OF DASH) DIGITAL RADIO, REAR SEAT, DK GRN WIRE DRIVER DOOR LOCK/WINDOW SWITCH DRIVER'S SEAT EARPHONE JACKS RADIO CONTROL GROUND DISTRIBUTION SYSTEM HEATED SEAT CONTROL MODULE (W/ SPO HEATED SEATS) HOT AT ALL TIMES HVAC CONTROL MODULE I/P FUSE BLOCK (LEFT SIDE OF DASH, INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOW SPD GMLAN SER DATA LOW SPEED GMLAN SERIAL DATA LOW SPEED SERIAL DATA LTR FUSE 53 (EXCEPT 6.6L) FUSE 50 (6.6L) MEMORY SEAT MODULE (W/ INDIVIDUAL FRONT SEAT) (UNDER FRONT OF NOT USED NOT USED PASSENGER DOOR LOCK/WINDOW SWITCH POWER DISTRIBUTION SYSTEM RADIO REAR OBJECT SENSOR CONTROL MODULE (AT REAR CARGO AREA, BEHIND TRIM PANEL) REAR SEAT AUDIO (RSA) CONTROL REAR SEAT AUDIO (RSA) CONTROL (IF EQUIPPED) RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (TOP REAR OF PASSENGER COMPT) RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) TAN WIRE TAN/BLK WIRE THEFT DETERRENT CONTROL MODULE (TDM) (ON RIGHT SIDE OF STEERING COLUMN) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (BEHIND CENTER OF DASH) W/ DIGITAL RADIO W/ DIGITAL RADIO, REAR SEAT, ONSTAR, EARPHONE JACKS RADIO CONTROL W/ FRONT SEAT, REMOTE CONTROL W/ INDIVIDUAL FRONT SEAT W/ LUXURY EDITION W/ ONSTAR W/ RADIO PROVISIONS W/ REAR SEAT, EARPHONE JACKS RADIO CONTROL W/ REMOTE KEYLESS ENTRY W/O INDIVIDUAL FRONT SEAT W/O LUXURY EDITION W/O RADIO PROVISIONS WHT WIRE

4 58 22 21 30 46 LOW REF ECT SENS SIG 6.0L 6.6L 4.8L, 5.3L,, 6.2L 4.3L AIR TEMPERATURE ACTUATOR (TOP MIDDLE OF HVAC MODULE) BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) ENGINE COOLING FAN (FRONT CENTER OF ENGINE COMPT) EXCEPT 6.6L 6.6L FAN FUSE 68 FAN RLY RELAY GRY WIRE HEAD HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) LOGIC LOGIC B+ GND LT BLU/BLK WIRE LT GRN WIRE MODE ACTUATOR (LEFT END OF HVAC MODULE) LOGIC ORG/BLK WIRE RECIRCULATION ACTUATOR (FRONT A/C) (TOP RIGHT SIDE OF HVAC MODULE) SENS SIG FAN RLY CTRL PWRTRN RLY CTRL FAN RLY CTRL RLY SPD SIG LOW REF SPD SIG SERIAL DATA TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

2501 2500 7631 944 COMPUTER DATA LINES SYSTEM 2501 2500 COMPUTER DATA LINES SYSTEM B+ RLY ENABLE BLK RED/ WIRE BLK WIRE BRN WIRE CAMPER TRAILER PROVISION (BLUNT CUT) (ON LEFT REAR BODY MOUNT) COMM DATA COMPUTER DATA LINES SYSTEM DK BLU WIRE EXCEPT 10 SERIES EXCEPT 10 SERIES 10 SERIES EXCEPT 6.6L 6.6L W/O 10 SERIES FSEM FUSE 21 GMLAN - GMLAN + GMLAN - GMLAN + LOW REF RLY FEEDBACK HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) ITBC FUSE 6 FUSE 19 LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MISC IGN FUSE 43 FUSE 40 PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/WHT WIRE STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) STUD 2 FUSE 63 FUSE 58 TAN WIRE TAN/BLK WIRE TCC BRK SIG TRAILER BRAKE (BLUNT CUT) TRAILER BRAKE CONTROL SWITCH TRAILER CONNECTOR (AT REAR OF VEHICLE) TRAILER) TRL BRK RLY IGN 1 VOLT PNK WIRE TRL BRK SIG TRL BRK SIG RLY FEEDBACK W/ HEAVY DUTY TRAILER WHEEL HARNESS TRAILER WHEEL TRAILER WHT WIRE YEL WIRE YEL/BLK WIRE