GMC Cab & Chassis Sierra 3500 (2004-2007) tan Wiring diagrams

22 20 5 8 19 CLASS 2 DATA LOW REF DOOR AJAR SIG CTSY LAMP POWER CTSY LAMP CTRL 22 3 18 13 4 CLASS 2 DATA LOW REF DOOR AJAR SIG CTSY LAMP POWER CTSY LAMP CTRL BATTERY B+ CTSY LAMP SUPPLY BATTERY B+ INADVERTENT PWR SUPPLY BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE CLASS 2 SERIAL DATA CONVENIENCE PACKAGE COMFORT, DECOR LEVEL #3 CTSY LAMP ON SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DOME LAMP SWITCH DOOR LATCH ASSEMBLY (LR) (CREW CAB) DOOR LATCH ASSEMBLY (PASSENGER) DOOR LATCH ASSEMBLY (RR) (CREW CAB) DOOR LATCH ASSEMBLY- DRIVER DRIVER DOOR MODULE (DDM) (IN LEFT FRONT DOOR) FRONT DOOR COURTESY LAMP (LEFT) FRONT DOOR COURTESY LAMP (RIGHT) FRONT PASSENGER DOOR MODULE (FPDM) (IN RIGHT FRONT DOOR) FUSE FUSE GRY/BLK WIRE HEADLAMP SWITCH HOT AT ALL TIMES I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INTERIOR LAMP DEFEAT SWITCH JUNCTION I/P BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) LF DOOR AJAR SIG CARGO LAMP LOW CTRL RF DOOR AJAR SIG LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MERCHANDISED PACKAGE LUXURY EDITION ORG/ WIRE PPL PPL INT LAMP DEFEAT SIG RR DOOR AJAR SIG LR DOOR AJAR SIG TAN WIRE WHT WIRE

AUDIO AMPLIFIER BACK-UP ALARM BACKUP LAMP (LEFT) BACKUP LAMP- RIGHT BLK WIRE BLK/WHT WIRE CAMPER/ CHEVY GMC CHEVY GMC CLEARANCE LAMPS CRUISE CONTROL MODULE DATA LINK CONNECTOR EXCEPT DUAL WHEELS DUAL WHEELS (IN STEERING WHEEL CONTROLS HARNESS) EXCEPT LUXURY FROM I/P RELAY BLOCK (DIAGRAM 3 OF 4) HAZARD LAMPS SWITCH HEADLAMP DIMMER SWITCH HEADLAMP SWITCH I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) TO I/P RELAY BLOCK (DIAGRAM 3 OF 4) IGNITION KEY ALARM SWITCH TOW/HAUL SWITCH INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSTRUMENT PANEL CLUSTER TIRE PRESSURE MONITOR MODULE LEFT FRONT RIGHT REAR LEFT REAR LEFT REAR TURN SIGNAL LAMP LICENSE LAMP (RIGHT) LICENSE LAMP- LEFT LUXURY (IN CONSOLE HARNESS) MULTI- FUNCTION ACCESSORY SWITCH TRACTION CONTROL SWITCH NCA WIRE RADIO TURN SIGNAL/ HAZARD FLASHER MODULE REAR LAMPS JUNCTION BLOCK (INSIDE OF LEFT REAR FRAME RAIL) REAR SEAT AUDIO CONTROLLER REAR SEAT AUDIO CONTROLLER AUDIO AMPLIFIER REMOTE PLAYBACK DEVICE (CD PLAYER) (EXCEPT LUXURY) DIGITAL RADIO RECEIVER RIGHT FRONT RIGHT REAR TURN SIGNAL LAMP TAIL/STOP LAMP (LEFT) TAIL/STOP LAMP-RIGHT) TAILGATE MARKER LAMP TAN WIRE TRAILER WIRING PROVISION TRANSFER CASE SHIFT CONTROL MODULE TURN SIGNAL/ MULTIFUNCTION SWITCH VEHICLE COMMUNICATION INTERFACE MODULE REAR SEAT ENTERTAINMENT ASSEMBLY W/ DUAL WHEELS WHT WIRE WINDOW/ DOOR LOCK SWITCH (PASSENGER) WIPER SWITCH

2061 2062 1732 2 1 8 VOICE LOW REF VOICE SIGNAL DRAIN WIRE 4 5 BARE 511 1947 1946 546 1851 LF SPK OUT+ LF SPK OUT- RR AUD SIG+ RR AUD SIG- GROUND 599 1547 1546 512 LR SPK OUT + LR SPK OUT - RF SPK OUT - RF SPK OUT + ANTENNA BARE BARE 7 8 9 10 11 12 13 14 15 16 17 18 BARE DRAIN WIRE BCM CLASS 2 SERIAL DATA BLK WIRE BLK/WHT WIRE BLUNT CUT) BODY CONTROL MODULE (BELOW STEERING COLUMN) BRN WIRE BRN/WHT WIRE COAX COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GRN WIRE GROUND GRY/BLK WIRE I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSTRUMENT CLUSTER SYSTEM VSS SIGNAL LR AUD SIG+ LT BLU WIRE LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PNK RADIO ON SIG WIRE PNK WIRE PNK/BLK WIRE PPL PPL ENABLE SIG PROG VOICE RADIO RADIO MUTE REAR SEAT AUDIO CONTROLLER REMOTE RADIO CONTROL SIGNAL REMOTE RADIO CONTROL SUPPLY VOLTAGE RR AUD SIG+ SEEK UP SEEK DN SERIAL DATA SOURCE DN SOURCE UP TAN WIRE UPPER LEFT STEERING WHEEL CONTROL SWITCH ASSEMBLY UPPER RIGHT STEERING WHEEL CONTROL SWITCH ASSEMBLY VEHICLE COMMUNICATION INTERFACE MODULE (BEHIND PASSENGER AIR BAG MODULE) VOL UP VOL DN WHT WIRE

BACK BLK WIRE DK BLU WIRE DK GRN WIRE FR DN FR UP FWD FRONT PASSENGER SEAT ADJUSTER SWITCH FRONT PASSENGER SEAT FRONT VERTICAL MOTOR FRONT PASSENGER SEAT HORIZONTAL MOTOR FRONT PASSENGER SEAT REAR RECLINER MOTOR FRONT PASSENGER SEAT REAR VERTICAL MOTOR HOT AT ALL TIMES I/P RELAY BLOCK LT BLU WIRE LT GRN WIRE ORG/ WIRE RED WIRE RR DN RR UP SEATS CIRCUIT BREAKER TAN WIRE YEL WIRE

1 2 3 4 5 6 7 8 LOW REF B+ SUNROOF MTR OPEN SUNROOF MTR CLOSE GRD BLK WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE DK BLU WIRE DK GRN WIRE GRY WIRE HOT AT ALL TIMES I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) LT GRN WIRE OPEN CLOSE ORG/ WIRE RAP SUPPLY SUNROOF CONTROL MODULE SUNROOF FUSE SUNROOF MOTOR SUNROOF SWITCH TAN WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPARTMENT) YEL/BLK WIRE

A/C SYSTEM ANTI-LOCK BRAKES SYS B+ CLS 2 DATA BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CMP SIG ECT SIG IGN INJ 5 CTRL INJ 8 CTRL PTO ENGAGE CRANKSHAFT POSITION (CKP) SENSOR (BEHIND LEFT VALVE COVER) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE FUSE FUSE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACCY, RUN, START HOT IN RUN, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IGN 0 FUSE INJ 7 CTRL INJ 4 CTRL INJECTORS KS SIGNAL CKP SIG REQ TORQ SIG SERIAL DATA SERIAL DATA KS SIGNAL PTO STATUS LEV SW SIG LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE M/T OIL LEV SW SIG PTO ENG KILL ORG/ WIRE ORG/BLK WIRE PCMB FUSE PNK IGN B+ REF LOW PTO ENABLE SW REF LOW GND WIRE PNK PNK 2 3 WIRE PNK PNK 27 28 WIRE PNK PNK 4 5 6 7 8 9 10 11 12 13 WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE COMPT) PPL PPL BRK SW SIG P/N SIG CPP SW SIG INJ 1 CTRL INJ 6 CTRL PPL PPL PPL PPL 31 32 33 34 35 36 37 PPL/WHT WIRE RED/BLK WIRE REF LOW REF LOW GND RLY CTRL GND STARTING/ CHARGING SYSTEM TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 PNK WIRE ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COOLANT LEVEL SWITCH (IN COOLANT RESERVOIR) DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE SENSOR (MIDDLE OF RIGHT CYLINDER HEAD) ENGINE OIL LEVEL SWITCH (RIGHT SIDE OF OIL PAN) F/ PUMP RELAY FUEL PUMP RELAY (SECONDARY) (DUAL TANKS) (ON UNDERHOOD FUSE BLOCK BRACKET) FUEL PUMP, SENDER ASSEMBLY (PRIMARY) (IN PRIMARY FUEL TANK) GRY WIRE HOT AT ALL TIMES HOT IN RUN, START SBA FUSE INTERNAL MODE SWITCH KNOCK SENSOR (BANK 1) (LEFT SIDE OF ENGINE) KNOCK SENSOR BANK 2 (ON RIGHT SIDE OF ENGINE, FORWARD OF STARTER) LT BLU WIRE LT GRN WIRE NCA WIRE ORG/BLK WIRE PCM B FUSE PNK PNK 2 3 WIRE PNK PNK 27 28 WIRE PNK PNK 4 5 6 7 8 9 10 11 12 13 WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL PPL 31 32 33 34 35 36 37 PPL/BLK WIRE PPL/WHT WIRE RED/WHT WIRE TAN WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) WHT WIRE YEL WIRE

1 2 PNK WIRE BLK WIRE BLK/WHT WIRE BLUNT CUT BLUNT CUT BLUNT CUT) BRK FUSE CRUISE FUSE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (LEFT SIDE OF TIMING COVER) CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN GRY WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE OIL PRESSURE (EOP) SENSOR (TOP REAR OF ENGINE) FOG LP FUSE FUEL TANK PRESSURE SENSOR (ON FUEL TANK, INTEGRAL TO FUEL PUMP, SENDER ASSEMBLY) GRY LT GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IND LOGIC LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE, ON INTAKE MANIFOLD) OFF ON SET ORG/ WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER TAKE OFF RELAY (NEAR UNDERHOOD FUSE BLOCK) POWER TAKE OFF SWITCH PPL PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE RED/WHT WIRE STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) STOP LP FUSE TAN WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION/ TRANSFER CASE) WHT WIRE YEL WIRE

ACT CNTRL APP SENS 1 APP SENS 2 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/ECM FUSE FUSE GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IGN LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PPL PPL PNK PNK WIRE PPL/WHT WIRE R/A INPUT RED WIRE RED/WHT WIRE REF LOW S/C INPUT SIGNAL STP LP IN TAC CTRL TAN WIRE TAN/WHT WIRE THROTTLE ACTUATOR CONTROL MODULE (LEFT REAR OF ENGINE COMPT) TP SENS 1 TP SENS 2 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEH STOP FUSE WHT WIRE WHT/BLK WIRE YEL WIRE

400 (OR 821) A/C SYSTEM A/C SYSTEM STARTING/CHARGING SYSTEM A/T ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLU RLY CTRL CLUTCH SW AXLE SW SIG VSS LOW SIG VSS HIGH SIG CRANK FUSE CTRL DELIVERED TORQ DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANP CTRL EVAP VENT CTRL MIL CTRL EXC SEO FUEL LEV SENS FUEL PRESS SIG FUSE GEN GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN, START HOT IN START IAT SIG IGN CTRL IGN CTRL IGN CTRL IGN CTRL PPL IGN IGN CTRL IGN CTRL IGN CTRL IGN CTRL IGN FEED GND IGNITION COILS INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL CLUSTER IPC/DIC FUSE LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE M/T MAF SIG MAP SIG MIL REQUEST NCA WIRE ORG/ WIRE ORG/BLK WIRE PMP RLY CTRL RPM OUT PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE COMPT) PPL PPL FUEL LEV SIG PPL PNK PNK WIRE PPL/WHT WIRE PRESS SENS SIG IND CTRL RED WIRE RED/BLK WIRE RED/WHT WIRE REF LO REF LOW REF LOW PRESS SENS SIG CRANK VOLT REF LOW REF LOW RPM OUT SEO SPARK PLUG SPARK PLUG SPARK PLUG STARTING SYSTEM STARTING SYSTEM TRANSMISSIONS SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANS- MISSION CONTROL MODULE (LEFT FRONT OF ENG COMPT) UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) VSS OUT VSS OUT WHT WIRE YEL (OR PPL/WHT) WIRE YEL WIRE YEL/BLK WIRE