GMC Sierra 3500 (2002-2006) brn/wht Wiring diagrams

A/T A/T M/T BLK WIRE BLK/WHT WIRE BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) BRAKE FUSE BRN WIRE BRN/WHT WIRE CLUTCH CRUISE CONTROL MODULE (LEFT REAR OF ENGINE COMPT, ON FIREWALL) CRUISE CONTROL ON/OFF SWITCH CRUISE ENGAGE IN CRUISE ENGAGE OUT SPEED SENSOR INPUT CRUISE FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN INSTRUMENT CLUSTER SYSTEM LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE M/T M/T A/T NCA WIRE OFF ORG/ WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE RESUME/ACCEL SET/COAST SOUND SYSTEMS SPEED SENSOR OUT STOP LPS FUSE STOPLAMP SWITCH (TOP OF BRAKE PEDAL) SWITCH (TOP OF CLUTCH PEDAL) UNDERHOOD FUSE BLOCK (NEAR BATTERY) VEH STOP FUSE VEHICLE SPEED SENSOR (VSS) VEHICLE SPEED SENSOR ADAPTER VSS HIGH VSS LOW WHT WIRE

A/T A/T M/T BLK WIRE BLK/WHT WIRE BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) BRAKE FUSE BRN WIRE BRN/WHT WIRE CLUTCH CRUISE CONTROL MODULE (LEFT REAR OF ENGINE COMPT, ON FIREWALL) CRUISE CONTROL ON/OFF SWITCH CRUISE ENGAGE IN CRUISE ENGAGE OUT SPEED SENSOR INPUT CRUISE FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN INSTRUMENT CLUSTER SYSTEM LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE M/T M/T A/T NCA WIRE OFF ORG/ WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE RESUME/ACCEL SET/COAST SOUND SYSTEMS SPEED SENSOR OUT STOP LPS FUSE STOPLAMP SWITCH (TOP OF BRAKE PEDAL) SWITCH (TOP OF CLUTCH PEDAL) UNDERHOOD FUSE BLOCK (NEAR BATTERY) VEH STOP FUSE VEHICLE SPEED SENSOR (VSS) VEHICLE SPEED SENSOR ADAPTER VSS HIGH VSS LOW WHT 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

A/C COMP CL RLY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C ON A/C RECIRC A/C REF PRE SENS SIG A/C REFRIGERANT PRESSURE SENSOR (IN HIGH SIDE PRESSURE LINE) AMBIENT AIR TEMPERATURE SENSOR (IN RIGHT FRONT BUMPER FILLER ASSEMBLY AUTO BLK WIRE BLK/WHT WIRE BLOWER FUSE BLOWER MOTOR (RIGHT SIDE OF DASH) BLOWER MOTOR CONTROL PROCESSOR (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CLASS 2 SER DATA CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FAN DN FAN UP FRT DEF GROUND GROUND TEMP SEN ASS CTRL BLOWER SPEED CTRL GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES A/C COMP FUSE HOT IN HOT IN RUN OR START IGN E FUSE HVAC 1 FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) HVAC/ ECAS FUSE I/P RELAY BLOCK (LEFT SIDE OF DASH) INSIDE AIR TEMPERATURE SENSOR ASSEMBLY (IN HEADLINER ABOVE DRIVER) INST LAMP DIM CTRL GROUND LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT TEMP CONTROL LO PRESS SENS SIG RT TEMP DOOR CTRL LT TEMP DOOR CTRL LOGIC LOW REF LOWER LEFT AIR TEMPERATURE SENSOR (LEFT END OF HVAC MODULE) LOWER RIGHT AIR TEMPERATURE SENSOR (BOTTOM OF HVAC MODULE) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE MODE DOOR CTRL MODE DOOR CTRL IGN 3 LOW REF B(+) OFF ORG/ WIRE POWERTRAIN CONTROL MODULE OR ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL/WHT WIRE RECIR RECIR DOOR CTRL RT TEMP DOOR CTRL LT TEMP DOOR CTRL RED WIRE RED/BLK WIRE RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) RIGHT TEMP CONTROL RUN WIRE SPEED CTRL B(+) GROUND TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UPPER LEFT AIR TEMPERATURE SENSOR (BELOW DASH TRIM PANEL) UPPER RIGHT AIR TEMPERATURE SENSOR (BELOW DASH TRIM PANEL) WHT WIRE WHT/BLK WIRE YEL WIRE

3 2 PPL BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) BRN/WHT WIRE CIGAR FUSE DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH, BELOW STEERING COLUMN) DIESEL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF INNER FRAME) GRY WIRE HOT AT ALL TIMES HVAC CONTROL MODULE (BEHIND CENTER OF DASH) INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE LT GRN WIRE MEMORY SEAT MODULE (UNDERSODE OF DRIVER SEAT) 15 14 13 12 11 10 9 8 7 6 NEAR KICK PANEL) ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT OF ENGINE COMPT) SPLICE PACK TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLAMP SWITCH) TRANSMISSION CONTROL MODULE (AT LEFT FRONT OF ENG COMPT) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VEHICLE INTERFACE UNIT (BEHIND RIGHT SIDE OF DASH) WHT WIRE YEL WIRE

A/C CLU A/C REQ A/C SYSTEM A/C SYSTEM 1310 419 1223 1222 1827 ANTI-LOCK BRAKE SYSTEM ANTI-LOCK BRAKE SYSTEM (SPEED SIGNAL) AUTOMATIC TRANS- MISSION INPUT SHAFT SPEED SENSOR BLK WIRE BLK/ GRY WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE ENG CTRL DELIVERED TORQ PC SOL HI EGR CTRL PC SOL LO FUEL PMP RPM OUT RECIRC SW DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP VENT MIL CTRL 2-3 SS 1-2 SS VSS OUT VSS OUT TFT SENS SIG GEN F FUSE GEN L GRY WIRE GRY/BLK WIRE HOT IN RUN, START IAC COIL HI IAC COIL LO IAC COIL LO IAC COIL HI IDLE AIR CONTROL VALVE (TOP OF THROTTLE BODY) IGN IGN CTRL IGN CTRL IGN CTRL IGN CTRL IGN FEED GND EGR GND IGNITION COILS INSTRUMENT CLUSTER SYSTEMS (SPEED SIGNAL) INSTRUMENT PANEL CLUSTER MALFUNCTION INDICATOR LAMP 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 MAF SIG MAP SIG RECIRC DOOR EVAP CANP NCA WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL FUEL LEV CYC SW IN PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE REF LO REF LOW REF LOW PRND C TRANS RNG A FUEL SIG CTRL RPM OUT SEC FUEL LVL SENS GND SPARK PLUG SPARK SPARK PLUG PLUG STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TP SIG IAT SIG IGN CTRL IGN CTRL IGN CTRL IGN CTRL TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLIGHT SWITCH) UNDERHOOD FUSE BLOCK VSS LOW VSS HIGH WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 PNK PNK WIRE 29 30 31 PNK WIRE A/C CLU A/C REQ A/C SYSTEM A/C SYSTEM 1310 419 1223 1222 1827 ANTI-LOCK BRAKE SYSTEM ANTI-LOCK BRAKE SYSTEM (SPEED SIGNAL) AUTOMATIC TRANS- MISSION INPUT SHAFT SPEED SENSOR BLK WIRE BLK/ GRY WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE ENG CTRL DELIVERED TORQ PC SOL HI EGR CTRL PC SOL LO FUEL PMP RPM OUT RECIRC SW DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP VENT MIL CTRL 2-3 SS 1-2 SS VSS OUT VSS OUT TFT SENS SIG GEN F FUSE GEN L GRY WIRE GRY/BLK WIRE HOT IN RUN, START IAC COIL HI IAC COIL LO IAC COIL LO IAC COIL HI IDLE AIR CONTROL VALVE (TOP OF THROTTLE BODY) IGN IGN CTRL IGN CTRL IGN CTRL IGN CTRL IGN FEED GND EGR GND IGNITION COILS INSTRUMENT CLUSTER SYSTEMS (SPEED SIGNAL) INSTRUMENT PANEL CLUSTER MALFUNCTION INDICATOR LAMP 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 MAF SIG MAP SIG RECIRC DOOR EVAP CANP NCA WIRE PNK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL FUEL LEV CYC SW IN PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE REF LO REF LOW REF LOW PRND C TRANS RNG A FUEL SIG CTRL RPM OUT SEC FUEL LVL SENS GND SPARK PLUG SPARK SPARK PLUG PLUG STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TP SIG IAT SIG IGN CTRL IGN CTRL IGN CTRL IGN CTRL TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLIGHT SWITCH) UNDERHOOD FUSE BLOCK VSS LOW VSS HIGH WHT WIRE YEL WIRE YEL/BLK WIRE

28 29 PPL 508 84 439 440 1868 87 CRUISE CONTROL SYSTEM BATTERY BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CAN-LOW CAN-HIGH CCP SW CKP SIGNAL CMP SIG ECT SIG OFF/RUN/CRK CRUISE CONTROL SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR (NEXT TO OIL FILLER TUBE) FUSE GEN 2 TO GROUND LOW REF GRY WIRE GRY/BLK WIRE HOT IN OFF, RUN, START LEFT I/P FUSE BLOCK IGN 0 FUSE HOT IN RUN, START IA HTR COOL LEV LOW REF LOW REF LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE OIL LEV SW ORG/ WIRE ORG/BLK WIRE PLUG SIG PNK WIRE PNK/BLK WIRE PPL PPL IA HTR FICM RELAY LOW REF PPL LOW REF LOW REF RED/BLK WIRE SPLICE PACK STARTING/ CHARGING SYSTEM TAN WIRE UNDER- HOOD FUSE BLOCK VACUUM SENSOR VACUUM SIG WATER IN FUEL SENSOR (ATTACHED TO FUEL FILTER) WATER IN FUEL SET/COAST IGN 1 BATT LOW REF RES/ACC WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

28 29 PPL 30 SERIES 20 SERIES ACCELERATOR PEDAL POSITION SENSOR (BEHIND ACCELERATOR PEDAL) BATTERY BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (FRONT OF ENGINE) DK BLU WIRE DK BLU/RED WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/RED WIRE DK GRN/WHT WIRE ECMB FUSE ECMPRV FUSE FUEL HEATER (TOP OF FUEL FILTER ELEMENT) FUEL PUMP (AUXILIARY TANK (LEFT SIDE FRAME RAIL) FUEL PUMP RELAY FUSE HOLDER GLOW PLUG CONTROLLER GLOW PLUGS GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES BATTERY FUSE HOT IN RUN, START UNDER- HOOD FUSE BLOCK FUEL HT FUSE IGN 1 IGN 1 RELAY INTAKE AIR HEATER (REAR OF ENGINE) INTAKE AIR HEATER RELAY (REAR OF ENGINE) INTAKE AIR TEMPERATURE/ MASS AIRFLOW SENSOR (IN AIR INDUCTION TUBE) LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PLUG 1 V+ PLUG 2 V+ PLUG 3 V+ PLUG 4 V+ PLUG 5 V+ PLUG 6 V+ PLUG 7 V+ PLUG 8 V+ PLUG SIG PNK WIRE PNK/BLK WIRE PPL RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RELAY CTRL TAN WIRE WHT/BLK WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 GROUND EGR SOL 12 V REDF GROUND LOW REF FUEL PRES REG 5 VOLT REF A/C SYSTEM A/C SYSTEM A/C SYSTEM ANTI-LOCK BRAKE SYSTEM BARO SENS MAF SENS BLK/WHT WIRE BLU WIRE BODY RELAY BLOCK BRN WIRE BRN/WHT WIRE CLUTCH PEDAL POSITION SWITCH (TOP OF PEDAL BRACKET) CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EGR EGR VALVE VALVE VENT THROTTLE SOLENOID SOLENOID EGR VALVE SOLENOID ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE SPEED FUEL PRES REG LOW REF F PMP RLY CTRL ENGINE SPD A/C HI PRES APP SENS 3 FUEL LEV SENS FUEL RAIL PRESSURE REGULATOR FUEL TEMPERATURE SENSOR (UNDER UPPER INTAKE SHIELD) FUSE GLOW PLUG RLY GRY WIRE GRY/BLK WIRE HOT IN RUN BRAKE FUSE HOT IN RUN, START IA HTR INSTRUMENT CLUSTER SYSTEM (FUEL LEVEL) INSTRUMENT PANEL CLUSTER LEFT I/P FUSE BLOCK LOW REF APP SENS 1 FUEL TEMP SIG LOW REF FP SENS TCC BRAKE LOW REF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/BLK WIRE PNK IGN 1 VOLT WIRE PNK PNK WIRE PNK WIRE PPL PPL/WHT WIRE RECIRC DOOR A/C CLU RLY RED WIRE SOUND SYSTEM STARTING SYSTEM STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TRANS. SYSTEM TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENG COMPT) VEHICLE SPEED SENSOR (LEFT SIDE OF TRANS) VEHICLE SPEED SENSOR ADAPTER WAIT TO RPM OUT WAIT TO START WHT WIRE YEL WIRE YEL/BLK WIRE