Chevrolet Cab & Chassis Silverado 3500 HD (2008-2011) nca Wiring diagrams

10 11 HIGH SPEED BUS (+) HIGH SPEED BUS (-) AUTOMATIC TRANSMISSION (6.6L) AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH BACKUP ALARM BACKUP LAMP (LEFT) BACKUP LAMP- RIGHT BCK/UP LAMP PCB RELAY BCK/UP RLY LOW SPEED SERIAL DATA BCK/UP SIG BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EXCEPT 6.6L 6.6L GMLAN SERIAL HI SPD GRD GRN WIRE GRY WIRE HIGH SPEED BUS + HIGH SPEED BUS - HIGH SPEED GMLAN SERIAL DATA BUS + INSIDE REARVIEW MIRROR (ISRVM) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LT GRN WIRE LT GRN/BLK WIRE MJR NCA WIRE ORG/ WIRE PARK/NEUTRAL POSITION (PNP) SWITCH (ON LEFT REAR SIDE OF TRANSMISSION) PNK WIRE POWER DISTRIBUTION SYSTEM REAR LAMPS JUNCTION BLOCK (INSIDE OF LEFT REAR FRAME RAIL) REAR VIEW CAMERA IMAGE DISPLAY MODULE (IF EQUIPPED) REARVIEW CAMERA (LEFT OF TAILGATE HANDLE) RED WIRE RED/BLK WIRE SW SIG 4 SW SIG A SW SIG B SW SIG C TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRAILER TOW CIRCUIT TRANS RANGE SIG A TRANS RANGE SIG B TRANS RANGE SIG C TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION CONTROL MODULE (TCM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) TRANSMISSION RANGE SWITCH SIGNAL A TRANSMISSION RANGE SWITCH SIGNAL B TRANSMISSION RANGE SWITCH SIGNAL C TRLR BCK/UP FUSE 10 FUSE 9 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEH BCK/UP FUSE 15 FUSE 14 W/ COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE W/ SPO REARVIEW CAMERA WHT WIRE YEL WIRE YEL/BLK WIRE

13 12 PPL BRAKE SW SIG 12 VOLT REF 16 15 19 HZ SW R TRN HZ SW L TRN HZ SW 24 2 1 5 RLY CTRL SPLY VOLT SPLY VOLT SPLY VOLT 6.0L 6.6L B+ B- BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE CHEVROLET DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER DOOR LOCK/WINDOW SWITCH DRIVER OUTSIDE REARVIEW MIRROR ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF FRAME ASSEMBLY) EXCEPT HYBRID HYBRID GMC GROUND DISTRIBUTION SYSTEM GRY WIRE HAZARD SWITCH HEADLAMP, PANEL DIMMER SWITCH AUTO OFF HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, LEFT TURN LOWER RIGHT PARK/ TURN SIGNAL LAMP LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT STOP TRN FUSE 6 MAJ MIN NCA WIRE ORG/BLK WIRE ORG/WHT WIRE PARK HEAD PARK LP SIG PASSENGER DOOR LOCK/WINDOW SWITCH PASSENGER OUTSIDE REARVIEW MIRROR PPL RED/WHT WIRE RF TRN SIG RIGHT FRONT SIDE MARKER LAMP RIGHT TURN RN/CRK RLY CTRL RT STOP TRN FUSE 8 SPLY VOLT TAN WIRE TCC BRK SIG TURN SIGNAL/ MULTI-FUNCTION SWITCH (ON LEFT SIDE OF STEERING COLUMN) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UPPER RIGHT PARK/ TURN SIGNAL LAMP W/ FOLDING MIRRORS W/O FOLDING MIRRORS W/ POWER FOLDING W/ MANUAL FOLDING WHT WIRE WHT/ DK BLU WIRE YEL WIRE

BLK WIRE BRN WIRE CHEVROLET DK GRN WIRE FENDER CLEARANCE LAMP FRONT MIDDLE ROOF CLEARANCE LAMP GMC GRD LEFT BACKUP LAMP LEFT FRONT OUTER ROOF CLEARANCE LAMP LEFT FRONT REAR FENDER CLEARANCE LAMP LEFT LICENSE LAMP LEFT REAR MARKER LAMP LEFT REAR MOST FENDER CLEARANCE LAMP LOWER LEFT TAIL/ STOP, TURN SIGNAL LAMP LOWER RIGHT TAIL/ STOP, TURN SIGNAL LAMP MJR MNR NCA WIRE POWER DISTRIBUTION SYSTEM REAR LAMPS JUNCTION BLOCK REAR LAMPS JUNCTION BLOCK (INSIDE OF LEFT REAR FRAME RAIL) RED/BLK WIRE RIGHT BACKUP LAMP RIGHT FRONT OUTER ROOF CLEARANCE LAMP RIGHT FRONT REAR FENDER CLEARANCE LAMP RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT LICENSE LAMP RIGHT REAR MOST RIGHT REAR SIDE MARKER LAMP TAILGATE MARKER LAMP UPPER LEFT TAIL/ STOP, TURN SIGNAL LAMP LEFT GMC BACKUP LAMP UPPER RIGHT TAIL/ STOP, TURN SIGNAL LAMP W/ DUAL WHEEL W/ ODOMETER SECURITY W/ TRAILER BRAKE YEL WIRE

4.8L, 5.3L, 6.0L, 6.2L AUXILIARY BATTERY RELAY (IF EQUIPPED) AUXILIARY BATTERY RUN RELAY (IF EQUIPPED) BLK WIRE CHEVROLET CHMSL BCK/UP PCB LAMP STRTR CRNK RELAY PCB RELAY RELAY RELAY COOLING FAN DIODE 1 (W/ 10 SERIES) FRONT WASHER DIODE DIESEL DIESEL W/ AUXILIARY W/ DUAL BATTERY BATTERY ELECTRONIC ENGINE COOLING FAN (DIESEL) EXCEPT HYBRID EXCEPT HYBRID, W/ 10 SERIES FRONT DRIVE AXLE ACTUATOR GAS GMC GMC/ CHEVROLET GRY WIRE HOOD AJAR SWITCH IGNITION COIL IGNITION IGNITION COIL COIL IGNITION IGNITION IGNITION IGNITION COIL COIL COIL COIL LEFT BATTERY LEFT ENGINE COOLING FAN RESISTOR LEFT FRONT SIDE MARKER LAMP LEFT UPPER LEFT HIGH BEAM PARK/TURN HEADLAMP SIGNAL LAMP LOWER LEFT PARK/TURN SIGNAL LAMP LOWER RIGHT PARK/TURN SIGNAL LAMP LT BLU WIRE NCA WIRE REAR DEFOG RELAY RIGHT BATTERY RIGHT FRONT SIDE MARKER LAMP RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP RUN/ TO AUXILIARY FUSE BLOCK (DIAGRAM 2 OF 6) TO GROUND UPPER LEFT PARK/TURN SIGNAL LAMP UPPER RIGHT PARK/TURN SIGNAL LAMP W/ KEYLESS ENTRY, PTO W/ PTO WHT WIRE WINDSHIELD WASHER FLUID LEFT LEVEL HORN SWITCH WINDSHIELD WIPER MOTOR WIPER CONTROL PCB RELAY

4.3L 6 SPEED A/T ALLISON TRANSMISSION 6 SPEED A/T AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP CONTROL MODULE BARE BARE BARE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE BODY CONTROL MODULE (BCM) DIESEL ENGINE CONTROL MODULE ENGINE CONTROL MODULE (ECM) ENGINE COOLANT LEVEL SWITCH EXCEPT 4.3L 4.3L EXCEPT DIESEL EXCEPT HYBRID EXHAUST GAS RECIRCULATION (EGR) VALVE SHIELD FAN HIGH RELAY RIGHT ENGINE COOLING FAN RESISTOR FROM FROM FROM RIGHT FROM BATTERY (DIAGRAM (DIAGRAM 1 OF 6) 1 OF 6) FRONT DOME/ READING LAMPS FUEL PRESSURE REGULATOR 1 SHIELD FUEL PRESSURE REGULATOR 2 SHIELD FUEL PRESSURE REGULATOR 2 SHIELD FUEL PRESSURE REGULATOR 1 SHIELD FUSE FUSE GLOW PLUG CONTROL MODULE (GPCM) GLOW PLUG FUEL FILTER CONTROL PRESSURE MODULE SWITCH (GPCM) GRY WIRE HYBRID PROPULSION IGNITION CONTROL MODULE (ICM) INTAKE AIR VALVE SHIELD EXHAUST GAS RECIRCULATION COOLER BYPASS SOLENOID VALVE MASS AIR FLOW (MAF)/ INTAKE AIR TEMPERATURE (IAT) SENSORS MOBILE RADIO FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) NCA WIRE PARK/ NEUTRAL POSITION SWITCH RELAY RIGHT ENGINE COOLING FAN ROOF ROOF BEACON BEACON RELAY SWITCH SHIELD BARE BARE SPEED A/T TRANSMISSION CONTROL MODULE (TCM) W/ HYBRID PROPULSION W/ ROOF MOUNTED LAMP W/ WRECKER EMERGENCY LAMP, BODY BUILDER EMERGENCY LAMP, ROOF MOUNTED LAMP WATER IN-FUEL SENSOR WHT WIRE

ACCESSORY DC POWER CONTROL MODULE AUTOMATIC A/C MANUAL A/C 15 10 BARE BLK WIRE BLOWER MOTOR CONTROL MODULE BREAKOUT) CENTER CONSOLE ACCESSORY POWER OUTLET CENTER CONSOLE COMPARTMENT ACCESSORY POWER OUTLET CENTER HIGH MOUNTED STOP LAMP (CHMSL) DATA LINK CONNECTOR (DLC) DRIVER INFORMATION CENTER (DIC) SWITCH ELECTRONIC ELECTRONIC ADJUSTABLE PEDALS PCB RELAY ELECTRONIC COMPASS MODULE EXTENDED CAB/CREW CAB FROM HORN SWITCH HVAC CONTROL MODULE INSIDE REARVIEW MIRROR (ISRVM) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT STEERING WHEEL CONTROL SWITCH MIDDLE LEFT FRONT ROOF FRONT CLEARANCE OUTER LAMP ROOF CLEARANCE LAMP NCA WIRE PARK ENABLE PCB RELAY PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER WINDOW SWITCH PASSENGER DOOR LOCK/ WINDOW SWITCH REAR DOME READING LAMPS RIGHT FRONT OUTER ROOF CLEARANCE LAMP RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT STEERING WHEEL CONTROL SWITCH RIGHT SUNSHADE (IF EQUIPPED) SUNROOF MODULE SUNROOF SWITCH TO SPLICE TRANSFER CASE SHIFT CONTROL SWITCH W/ ACCESSORY STEERING CONTROL W/ ACCESSORY STEERING CONTROL, W/ ODOMETER SECURITY WIRING PROVISIONS W/ BODY BUILDER EMERGENCY LAMP W/ COMFORT, DECOR LEVEL 3 W/ LUXURY EDITION W/ MANUAL FOLDING MIRROR, HEATED MIRROR W/ MANUAL FOLDING MIRROR, HEATED MIRROR (IN RIGHT FRONT DOOR HARNESS) W/ ROOF MARKER LAMP W/ ROOF MOUNTED LAMP PROVISIONS W/ STEERING WHEEL HEATER, ACCESSORY STEERING CONTROL, AUTOMATIC CRUISE CONTROL W/ STEERING WHEEL HEATER, AUTOMATIC CRUISE CONTROL W/ SUNROOF ROOF LAMP PROVISION W/ SUNROOF ROOF LAMP PROVISION W/O ROOF MARKER LAMP W/ SUNROOF SLIDING W/ WRECKER EMERGENCY LAMP W/O STEERING WHEEL HEATER W/O STEERING WHEEL HEATER, ACCESSORY STEERING CONTROL, AUTOMATIC CRUISE CONTROL WHT WIRE

AMBIENT LIGHT SENSOR AMBIENT LIGHT/ SUNLOAD SENSOR AUTOMATIC A/C AUTOMATIC A/C MANUAL A/C 8 3 AUTOMATIC TRANSMISSION SHIFT LEVER BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BRAKE FLUID LEVEL SWITCH DATA LINK CONNECTOR DOOR LOCK CONTROL DRIVER DOOR LATCH DRIVER DOOR LOCK SWITCH DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER WINDOW SWITCH EXCEPT HYBRID FRONT DOOR LOCK DIODE FRONT DOOR UNLOCK DIODE HEADLAMP, PANEL I/P DIMMER MULTI-FUNCTION SWITCH SWITCH HVAC CONTROL MODULE HYBRID, W/O NON BUCKET FRONT INDIVIDUAL SEAT I/P FUSE BLOCK (LEFT SIDE OF DASH, INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) MANUAL A/C NCA WIRE PASSENGER DOOR LATCH PASSENGER DOOR LOCK SWITCH PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT LUMBAR SWITCH POWER WINDOW REAR DOOR LOCK DIODE REAR DOOR UNLOCK DIODE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) THEFT DETERRENT MODULE TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ NON BUCKET FRONT INDIVIDUAL SEAT W/ POWER W/O W/O NON BUCKET, FRONT INDIVIDUAL SEAT, W/ COMFORT, DECOR LEVEL 3 W/O POWER DOOR LOCK CONTROL WHT WIRE WINDSHIELD WIPER MOTOR

1 2 PNK WIRE 22 23 24 25 PPL AXLE SW SIG BLK WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION (CMP) SENSOR (FRONT OF ENGINE, ABOVE CRANK PULLEY) CKP SENSOR SIG CRANKSHAFT POSITION (CKP) SENSOR (FRONT OF ENGINE, RIGHT OF CRANK PULLEY) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EGT SENSOR SIG ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) FRP SENSOR SIG GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE HOLDER (RIGHT SIDE OF FIREWALL) IGN 1 VOLT INJ 1 INJ 2 INTAKE AIR VALVE LOW REF LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE MEGA FUSE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 8 9 10 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE PTO ENG OFF SIG RED WIRE RED/BLK WIRE RED/WHT WIRE SENS 2 SPLY VOL SIG TAN WIRE TAN/WHT WIRE TCC BRAKE SIG TP SENSOR SIG TRANSMISSIONS SYSTEM WATER IN FUEL WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE DSL ECM FUSE 12 ECM BATT FUSE 11 ECM IGN FUSE 53 ECM/ THROT CONT FUSE 17 ENG FUSE 3 FUEL HTR FUSE 8 FUEL INJECTOR 1 (TOP OF RIGHT CYLINDER BANK) FUEL INJECTOR 2 (ABOVE CYLINDER 2) FUEL INJECTOR 3 (TOP OF RIGHT CYLINDER BANK) FUEL INJECTOR 4 (ABOVE CYLINDER 4) FUEL INJECTOR 5 (TOP OF RIGHT CYLINDER BANK) FUEL INJECTOR 6 (ABOVE CYLINDER 6) FUEL INJECTOR 7 (TOP OF RIGHT CYLINDER BANK) FUEL INJECTOR 8 (ABOVE CYLINDER 8) FUEL PMP RELAY FUEL PUMP FUSE 18 FUSE 6 GRY WIRE HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED LT BLU/BLK WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER TAKE OFF (PTO) MODULE (OUTSIDE OF RIGHT FRONT CHASSIS FRAME) POWER TAKE OFF (PTO) PROVISION (BLUNT CUT) PPL PPL 20 21 22 23 24 25 PWR/ TRN RELAY RED/WHT WIRE TAN WIRE TAN/WHT WIRE TRANS.) TRANSFER CASE) UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ AUXILIARY FUEL TANK 31 SERIES WHT DK GRN/ WIRE WHT RED/ WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

23 1786 STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM 2501 6399 COMPUTER DATA LINES SYSTEM TRANSMISSIONS SYSTEM 5985 2500 COMPUTER DATA LINES SYSTEM ACC WAKE SER DATA DATA BUS + AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DATA BUS - VSS SIG DK BLU WIRE DK COMPUTER DATA LINES SYSTEM DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY EGR MOTOR HIGH LOW REF A/C REFRIG SIG FUEL LEVEL SENSOR SIG ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) ENGINE OIL PRESSURE GAUGE ENGINE OIL PRESSURE IND EXHAUST GAS RECIRCULATION (EGR) TEMPERATURE SENSOR 2 (TOP RIGHT FRONT OF ENGINE) FUEL GAUGE FUEL PUMP LOW REF FUEL RAIL PRESSURE (FRP) SENSOR (TOP LEFT REAR OF ENGINE) FUEL RAIL TEMPERATURE (FRT) SENSOR (TOP LEFT REAR OF ENGINE) GENERATOR SIG PARK/NEUTRAL SIG GRN WIRE GRY WIRE IND INSTRUMENT PANEL CLUSTER (IPC) LOGIC LOW REF LOW REF MIL CONTROL A/C COMPRESS LT BLU WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP NCA WIRE ORG/BLK WIRE PNK PNK PNK 1 2 3 WIRE PNK WIRE POWERTRAIN RLY CTRL MOTOR CTRL 1 IGN 1 VOLT PPL PRIMARY FUEL LEVEL SENSOR (IN FRONT FUEL TANK) RED WIRE STARTING/ CHARGING SYSTEM TACHOMETER TAN WIRE TAN/BLK WIRE VEHICLE SPEED SIG WAIT TO WAIT TO START WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE