GMC Cab & Chassis Sierra 3500 (2004-2007) blk/wht Wiring diagrams

4.3L, 8.1L 4.3L: 10 GA- 4.8L, 5.3L, 6.0L ABS FUSE TBC BATT FUSE AUDIO AMPLIFIER AUXILIARY BATTERY RELAY (RIGHT REAR OF ENGINE COMPT) BATTERY (LEFT) BATTERY (RIGHT) BATTERY CABLE JUNCTION BLOCK BLK WIRE BLK/WHT WIRE BLUNT CUT) BRN WIRE CIG LTR FUSE CIGAR LIGHTER COOL FAN FUSE COOL/FAN RELAY 1 COOL/FAN RELAY 2 COOL/FAN RELAY 3 DATA LINK CONNECTOR DIGITAL RADIO RECEIVER DIGITAL RADIO RECEIVER REAR SEAT AUDIO (RSA) CONTROLLER ELECTRONIC BRAKE CONTROL MODULE BODY CONTROL MODULE EMERGENCY VEHICLE ROOF LAMP RELAY EVAPORATIVE EMISSION CANISTER VENT SOLENOID EXCEPT 4.3L EXCEPT LUXURY FUSE FUSIBLE LINK 1 FUSIBLE LINK 4 FUSIBLE LINK 5 FUSIBLE LINK 6 GENERATOR (4.3L, 8.1L) GENERATOR (4.8L, 5.3L, 6.0L) HD TRAILERING EQUIPMENT PROVISIONAL (BLUNT CUT) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN A FUSE STUD 2 FUSE IGN B FUSE STUD 1 FUSE LUXURY MEGA FUSE MOBILE RADIO FUSE BLOCK (RIGHT SIDE OF DASH) NCA WIRE NOT USED NOT USED ORG/ WIRE RADIO AMP FUSE RADIO FUSE REAR SEAT AUDIO (RSA) CONTROLLER RADIO RADIO RED WIRE RED/BLK WIRE RELAY RELAY/ FUSE RTD FUSE S/ROOF FUSE RR WPR FUSE EAP FUSE STARTER STARTER RELAY SUNROOF CONTROL MODULE (BEHIND RIGHT SIDE OF DASH, NEAR "A" PILLAR) TO IGNITION SWITCH (DIAGRAM 5 OF 6) TO IGNITION SWITCH (DIAGRAM 6 OF 6) TO IPC/DIC FUSE (DIAGRAM 2 OF 6) TRAILER CONNECTOR (7 WAY) UNDERHOOD COOLING FAN FUSE BLOCK (LEFT SIDE OF ENG COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VSES/ ECAS FUSE FUSE W/ AUX BATTERY W/ WRECKER EMERGENCY LAMP WHEEL TRAILER WIRING PROVISIONAL (BLUNT CUT) WRECKER RELAY

ABS FUSE AUDIO AMPLIFIER AUXILIARY BATTERY RELAY (RIGHT REAR OF ENGINE COMPT) BATTERY (LEFT) BATTERY (RIGHT) BATTERY CABLE JUNCTION BLOCK BLK WIRE BLK/WHT WIRE BLUNT CUT) BODY CONTROL MODULE BRN WIRE CIG LTR FUSE CIGAR LIGHTER DATA LINK CONNECTOR DIGITAL RADIO RECEIVER RADIO ELECTRONIC BRAKE CONTROL MODULE EMERGENCY VEHICLE ROOF LAMP RELAY EVAPORATIVE EMISSION CANISTER VENT SOLENOID EXCEPT LUXURY FUSE FUSIBLE LINK 1 FUSIBLE LINK 2 FUSIBLE LINK 3 (8 GA- FUSIBLE LINK 4 FUSIBLE LINK 5 FUSIBLE LINK 6 GENERATOR (LEFT) GENERATOR (RIGHT) GLOW PLUG CONTROL MODULE (GPCM) HD TRAILERING EQUIPMENT PROVISIONAL (BLUNT CUT) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN A FUSE IGN B FUSE STARTER RELAY INTAKE AIR HEATER (IAH) MODULE INTAKE AIR HEATER FUSE LUXURY MEGA FUSE MOBILE RADIO FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) NOT USED NOT USED ORG/ WIRE RADIO AMP FUSE RADIO FUSE REAR SEAT AUDIO (RSA) CONTROLLER REAR SEAT AUDIO (RSA) CONTROLLER DIGITAL RADIO RECEIVER RADIO RED WIRE RELAY RELAY/ FUSE RTD FUSE S/ROOF FUSE RR WPR FUSE EAP FUSE STARTER STUD 1 FUSE (OR STUD 2 FUSE SUNROOF CONTROL MODULE TBC BATT FUSE TO IGNITION SWITCH (DIAGRAM 5 OF 5) TO IGNITION SWITCH (DIAGRAM 4 OF 5) TRAILER CONNECTOR (7 WAY) VSES/ ECAS FUSE FUSE W/ AUX BATTERY W/ WRECKER EMERGENCY LAMP WHEEL TRAILER WIRING PROVISIONAL (BLUNT CUT) WRECKER RELAY

1-2 SOL 2-3 SOL 3-2 SOL 32 33 34 PNK WIRE A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLK/WHT WIRE BLU WIRE BRK FUSE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (TOP CENTER REAR OF ENGINE) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE OIL PRESSURE (EOP) SENSOR (TOP REAR OF ENGINE) FUEL TANK PRESSURE SENSOR (ON FUEL TANK, INTEGRAL TO FUEL PUMP, SENDER ASSEMBLY) GRY DK GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LT BLU WIRE LT BLU/WHT WIRE LT GRN GRY WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENG, ON INTAKE MANIFOLD) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE REV STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) STOP LPS FUSE TAN (OR BLK) WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL TCC SOL TFT SENSOR UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) VEHICLE SPEED SENSOR (REAR OF TRANSMISSION/ TRANSFER CASE) WHT WIRE YEL WIRE YEL/BLK WIRE

32 33 34 PNK WIRE 9 10 PNK WIRE ACT CNTRL APP SENS 1 APP SENS 2 AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR 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 HOT IN RUN, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IAT SENSOR IGN LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PPL PPL/WHT WIRE R/A INPUT RED WIRE RED/BLK WIRE RED/WHT WIRE REF LOW S/C INPUT SIGNAL STP LP IN TAC CTRL TAN WIRE TAN/BLK 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 ENG COMPT) VEH STOP FUSE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

32 33 34 PNK WIRE A/C SYSTEM A/C SYSTEM STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COOLING FANS SYSTEM CRANK FUSE CSS SIG AXLE SW SIG VSS LOW SIG VSS HIGH SIG AT ISS HIGH SIG AT ISS LOW SIG CTRL CYCLE SIG DELIVERED TORQ PC SOL HI CTRL DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP VENT CTRL MIL CTRL 2-3 SS CTRL 1-2 SS CTRL VSS OUT VSS OUT TFT SENS SIG EXC SEO FUEL LEV SENS FUEL LEV SIG FUSE 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 LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAF SIG MAP SIG CFAN HI RLY EVAP CANP CTRL MALFUNCTION INDICATOR LAMP NCA WIRE ORG/ WIRE PC SOL LO CTRL PMP RLY CTRL RPM OUT PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE PRESS SENS SIG IND CTRL PPL RED WIRE RED/BLK WIRE RED/WHT WIRE REF LO REF LOW RPM OUT SEO SPARK PLUG SPARK PLUG SPARK PLUG STARTING/CHARGING SYSTEM STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC SOL CTRL CLU RLY CTRL UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) WHT WIRE YEL WIRE YEL/BLK WIRE

1694 1478 TRANSMISSION SYSTEM 2755 2530 5425 LOW REF FUEL PRESS VOLT INJ + GROUP 4 INJ 6 INJ 3 2931 6265 LOW REF CMP SENSOR SIG 492 432 MAF SENSOR SIG TURBOCHARGER SIG TUR VANE POS SIG APP SENSOR 2 SIG BLK WIRE BLK/WHT WIRE BLUNT CUT) BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (FRONT OF ENGINE, NEAR COOLING FAN PULLEY) COOLANT LEVEL SIG COOLANT LEVEL SWITCH (IN COOLANT RESERVOIR) CRUISE CONTROL SYSTEM CRUISE CONTROL SYSTEM CRUISE SET SW SIG DK BLU WIRE DK BLU/WHT WIRE EGR VAL POS SIG ECT SENSOR SIG ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR (TOP OF ENGINE, NEAR OIL FILTER TUBE) ENGINE OIL LEVEL SWITCH (LEFT REAR OF OIL PAN) GRN WIRE GRY WIRE GRY/BLK WIRE IAT SENSOR 2 SIG IAT SENSOR SIG LOW REF LOW REF ENG SHUTOFF SIG CPP SW SIG LOW REF TUR VANE POS INJ + GROUP 3 INJ 5 INJ 4 5930 5423 PPL 845 844 LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE OIL PRESS SIG ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE PTO ON SW SIG CRUISE ON SW SIG LOW REF LOW REF 397 552 CRUISE CONTROL SYSTEM RED/BLK WIRE STARTING/ CHARGING SYSTEM STARTER ENABLE FUEL PRESS INJ + GROUP 2 2834 5422 TAN WIRE TAN/WHT WIRE TURBOCHARGER VANE POSITION CONTROL SOLENOID VALVE WATER IN FUEL SENSOR (ON FUEL FILTER ELEMENT) WHT WIRE YEL WIRE YEL/BLK WIRE

A/T ACCELERATOR PEDAL POSITION SENSOR BLK WIRE BLK/WHT WIRE BRN WIRE BUS - COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE FUSIBLE LINK 3 GLOW PLUG 1 GLOW PLUG 2 GLOW PLUG 3 GLOW PLUG 4 GLOW PLUG 5 GLOW PLUG 6 GLOW PLUG 7 GLOW PLUG 8 GLOW PLUG CONTROL MODULE (GPM) GLOW PLUG FUSE GLOW PLUGS GRD GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IAH COMM 1 IAH COMM 2 IAH CURRENT SIG IAH SIG IAH TEMP SIG IAH VOLT SIG IGN 0 IGN 1 INTAKE AIR HEATER (IAH) MODULE LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE M/T NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL 28 29 PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/LT GRN WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

2 3 4 5 6 7 8 PNK WIRE 9 10 11 12 13 PNK WIRE AXLE SW SIG BACKUP VOLT BLK WIRE BLK/WHT WIRE BLUNT CUT) BODY RELAY BLOCK BRN WIRE CKP SENSOR SIG CLUTCH PEDAL POSITION SWITCH DK BLU WIRE DK BLU/WHT WIRE ECM 1 FUSE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FRP SENSOR SIG FUEL PRESSURE REGULATOR GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ACC, RUN, START HOT IN RUN BRK FUSE HOT IN RUN, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IGN 0 FUSE IGN 1 INJ 1 INJ 2 INTAKE AIR HEATER FUSE INTAKE AIR TEMPERATURE (IAT) SENSOR 2 (IN AIR INDUCTION TUBE) LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 1 2 WIRE PNK 23 24 25 26 27 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 28 29 30 31 PPL/WHT WIRE RED WIRE RED/BLK WIRE STOPLAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TRANSMISSION SYSTEM TUR VAN POS UNDER- HOOD FUSE BLOCK (LEFT SIDE ENG COMPT) WATER IN FUEL WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

12 13 14 PNK WIRE 2 3 4 5 6 7 8 PNK WIRE 20 21 PPL 9 10 11 12 13 PNK WIRE ACTUATOR FUSE BLK WIRE BLK/WHT WIRE BRN WIRE CLOSED BELOW 8 DEG C (46 DEG F) DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ECM FUSE ECM RELAY ECM-B FUSE F/ PMP RELAY FUEL HEATER (TOP OF FUEL FILTER ELEMENT) FUEL HTR FUSE FUEL INJECTORS FUEL RAIL PRESSURE SENSOR (UNDER INTAKE MANIFOLD SHIELD, ON FUEL RAIL) GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN, START LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 23 24 25 26 27 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL 28 29 30 31 PPL/WHT WIRE RED/BLK WIRE TAN WIRE TAN/WHT WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE BLOCK) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1827 121 1020 2500 822 ANTI-LOCK BRAKES SYSTEM 23 1786 420 STARTING/ CHARGING SYSTEM 3 4 PNK WIRE 439 1320 25 2524 EXTERIOR LIGHTS SYSTEM STARTING/ CHARGING SYSTEM 5764 470 380 1589 INSTRUMENT CLUSTER SYSTEM 6-SPEED M/T 5-SPEED A/T A/C SYSTEM A/C SYSTEM INSTRUMENT CLUSTER SYSTEM ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CLASS 2 SERIAL COMPUTER DATA LINES SYSTEM DATA BUS - VSS SIG DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EGR MOTOR HIGH LOW REF A/C REFRIG SIG FUEL LEVEL SENSOR SIG ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FUEL PUMP LOW REF FUSE GENERATOR SIG PARK/NEUTRAL SIG TCC BRAKE SIG GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IND INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL CLUSTER INTERNAL MODE SWITCH IPC/DIC FUSE LOW REF MIL CONTROL A/C COMPRESS LT BLU WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP ORG/ WIRE ORG/BLK WIRE PNK IGN 1 + CHMSL + CHARGE IND GENERATOR 2 SIG WIRE PNK PNK WIRE PNK WIRE PPL PPL 5 6 7 8 PPL PTO CONTROL ECM RELAY PPL/BLK WIRE PPL/WHT WIRE RED/BLK WIRE RPM OUT TAN WIRE TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (LEFT REAR SIDE OF TRANS) VEHICLE SPEED SIG VEHICLE SPEED SIG ENG SPEED SIG IGN 0 + DATA BUS + VSS LOW SIG WAIT TO WAIT TO START WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE