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

1 2 6 8 16 GND TCC PWM PC SOL HI PC SOL LO 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID A/T FLUID PRESSURE MANUAL MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (IN TRANSMISSION) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BELOW STEERING COLUMN) BRAKE FUSE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE SENSOR (FRONT OF LEFT CYLINDER HEAD) EXCEPT SEO FLUID TEMP SENSOR FUSE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, ACC, START HOT IN RUN, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) INSTRUMENT PANEL CLUSTER (IPC) IPC/DIC FUSE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP OF TRANSMISSION) ORG/ WIRE ORG/BLK WIRE P/N PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PCM B FUSE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (BELOW STEERING COLUMN) PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV RUN WIRE SEO SPLICE PACK STOPLIGHT SWITCH (TOP OF BRAKE PEDAL BRACKET) TCC PWM SOLENOID TOW/HAUL SWITCH TRANSFER CASE) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) PCM 1 FUSE VEHICLE SPEED SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE

2467 1694 TRQ RESPONSE ALLISON TRANSMISSION TCC PWM SOLENOID SOLENOID BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BELOW STEERING COLUMN) BRAKE FUSE BRN WIRE BRN/WHT WIRE CLASS 2 DATA DATA LINK CONNECTOR DELIVD TORQUE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROLS SYSTEM (POWER TAKE OFF SWITCH) (IN ENGINE HARNESS) EXCEPT SEO FUSE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, ACC, START I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN 0 FUSE INSTRUMENT PANEL CLUSTER (IPC) IPC/DIC FUSE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAIN LINE PRES 12 VOLT REF TCC SOL MALFUNCTION INDICATOR LAMP MIL SIGNAL OF TRANSMISSION) ON/OFF SOLENOIDS ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE P/N PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK 451 2522 420 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL PPL PPL/WHT WIRE PRESSURE SWITCH MANIFOLD RED WIRE RED/BLK WIRE REQST TORQUE REV TFT SENSOR TRIM SOLENOIDS RUN WIRE SEO SIG HI-FRONT SPLICE PACK STOPLAMP SWITCH (ON BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TFT SIGNAL TOW/HAUL SWITCH TRANSFER CASE) TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) TURBINE SPEED SENSOR (IN TRANSMISSION) INPUT SPEED SENSOR (IN TRANSMISSION) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) BATTERY) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) PCM B FUSE VEHICLE SPEED SENSOR VSS ADAPTER WHT WIRE YEL WIRE YEL/BLK WIRE

AUTOMATIC TRANSMISSION BODY CONTROL MODULE BRAKE FUSE BRN WIRE CRUISE CONTROL ON/OFF SWITCH CRUISE FUSE CRUISE POWER TAKEOFF CONTROL MODULE (PTO) SWITCH CRUISE PTO ELECTRONIC BRAKE CONTROL MODULE FROM AUXILIARY TRANSFER BATTERY CASE SHIFT RELAY CONTROL (DIAGRAM SWITCH 1 OF 6) FROM IGN A FUSE (DIAGRAM 1 OF 6) FRONT AXLE ACTUATOR FUSE HTR/AC FUSE HVAC 1 FUSE HVAC CONTROL MODULE I/P FUSE BLOCK (LEFT SIDE OF DASH, I/P JUNCTION BLOCK (BEHIND RIGHT SIDE OF DASH) IGN 0 FUSE IGN 3 FUSE IGNITION SWITCH LOCK OFF MAN A/C ORG/ WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE PPL PNK WIRE REAR WHEEL STEERING CONTROL MODULE RED WIRE RUN WIRE STEERING WHEEL SPEED/POSITION SENSOR STOPLAMP CLUTCH SWITCH SWITCH TBC IGN 0 FUSE TRACTION CONTROL SWITCH TRANSMISSION TRANSMISSION CONTROL MODULE TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) CRANK FUSE WHT WIRE YEL WIRE

A/C COMP RELAY A/T M/T AIRBAG FUSE B/U LP FUSE BODY CONTROL MODULE BRN WIRE CLUTCH DEFOG RELAY EXC 8.1L W/O CALIFORNIA LEV FROM IGN 1 RELAY (DIAGRAM 3 OF 6) FROM IGN B FUSE (DIAGRAM 1 OF 6) FUSE HEATED HEATED OXYGEN OXYGEN SENSOR SENSOR BANK 1 BANK 2 SENSOR 2 SENSOR 2 HEATED OXYGEN SENSOR BANK 1 SENSOR 1 HEATED OXYGEN SENSOR BANK 2 SENSOR 1 I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN E FUSE IGNITION SWITCH INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INSTRUMENT INSTRUMENT TURN SIGNAL/ PANEL MULTIFUNCTION CLUSTER SWITCH LOCK OFF MOBILE RADIO FUSE BLOCK (UPFITTER OPTION) NCA WIRE PARK/NEUTRAL BACKUP POSITION LAMP SWITCH SWITCH (A/T) PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE RED WIRE RELAY RELAY RR WPR FUSE RUN WIRE SELECTABLE PANEL RIDE SWITCH CLUSTER SEO ACCY FUSE SEO IGN FUSE SWITCH (M/T) TBC ACCY FUSE TBC IGN 1 FUSE TURN SIGNAL/ MULTIFUNCTION SWITCH WINDSHIELD WIPER MOTOR MODULE WS WPR FUSE YEL WIRE

80 13 45 27 14 35 43 31 58 9 (GASOLINE) (DIESEL) A/C COMP CL RLY CTRL A/C COMP FUSE A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C IND 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 (ON HIGH PRESSURE HOSE) AIR TEMPERATURE SENSOR (LOWER LEFT) (LOWER LEFT FLOOR DUCT ASSEMBLY) AIR TEMPERATURE SENSOR (LOWER RIGHT) (BOTTOM OF HVAC MODULE) AIR TEMPERATURE SENSOR (UPPER LEFT) (BELOW DASH TRIM PANEL) AIR TEMPERATURE SENSOR (UPPER RIGHT) (BELOW DASH TRIM PANEL) AMBIENT AIR TEMPERATURE SENSOR (IN RIGHT FRONT BUMPER FILLER ASSEMBLY AUTO BLK WIRE BLK/WHT WIRE BLOWER MOTOR (RIGHT SIDE OF DASH) BLOWER MOTOR CONTROL PROCESSOR (BEHIND RIGHT SIDE OF DASH) BLWR FUSE 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 ASSY CTRL BLOWER SPEED CTRL GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN OR START HVAC 1 FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) HVAC/ ECAS FUSE I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN E FUSE INSIDE AIR TEMPERATURE SENSOR ASSEMBLY (IN HEADLINER ABOVE DRIVER) INST LAMP DIM CTRL GROUND LEFT TEMP CONTROL LO PRESS SENS SIG RT TEMP DOOR CTRL LT TEMP DOOR CTRL LOGIC LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE MODE DOOR CTRL IGN 3 LOW REF B(+) MODE DOOR PO SIG OFF ORG/ WIRE PPL PPL/WHT WIRE RECIR RECIR DOOR CTRL RT TMP DOOR PO SIG LT TMP DOOR PO SIG 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) WHT WIRE WHT/BLK WIRE YEL WIRE

11 12 PPL AIR TEMPERATURE ACTUATOR (LEFT) (BOTTOM OF HVAC MODULE) AIR TEMPERATURE ACTUATOR (RIGHT) (TOP OF HVAC MODULE) AMBIENT LIGHT SENS LO REF AMBIENT LIGHT SENS SIG PASS SUNLOAD SENSOR SIG DRVR SUNLOAD SENSOR SIG AMBIENT LIGHT SENSOR AMBIENT LIGHT/SUNLOAD SENSOR ASSEMBLY (TOP CENTER OF DASH) BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE CLASS 2 SERIAL DATA DK BLU WIRE DK GRN WIRE GRY WIRE I/P JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MODE ACTUATOR (LEFT SIDE OF HVAC MODULE) PPL RECIRCULATION ACTUATOR (TOP CENTER OF HVAC MODULE) SUNLOAD SENSOR LEFT SUNLOAD SENSOR RIGHT TAN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

6 7 8 9 10 11 12 13 14 15 16 PPL AUDIO AMPLIFIER BARE BARE DRAIN WIRE R SPK OUT- L SPK OUT- B+ BLK WIRE BLK/WHT WIRE BLUNT CUT) BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE GROUND L SPK OUT+ R SPK OUT+ GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) LEFT FRONT TWEETER SPEAKER LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK BARE WIRE PNK WIRE RADIO AMP FUSE RADIO FUSE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER SUBWOOFER SPEAKER TAN WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPARTMENT) YEL WIRE

4 5 BARE AUDIO AMPLIFIER BARE BARE 7 8 9 10 11 12 13 14 15 16 17 18 BARE DRAIN WIRE R SPK OUT- L SPK OUT- B+ BLK WIRE BLK/WHT WIRE BLUNT CUT) BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE GROUND L SPK OUT+ R SPK OUT+ GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) LEFT FRONT TWEETER SPEAKER LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK BARE WIRE PNK WIRE PPL RADIO AMP FUSE RADIO FUSE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER SUBWOOFER SPEAKER TAN WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPARTMENT) YEL 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

35 39 (DIESEL) (GASOLINE) A/T BLK WIRE CLUTCH CLUTCH START SWITCH SIGN CRANK FUSE CRANK SIGN DK GRN WIRE GASOLINE ONLY GRN WIRE IGN A FUSE IGN B FUSE IGN E FUSE IGNITION SWITCH LEFT BATTERY LOCK OFF M/T PARK/NEUTRAL POSITION SWITCH (A/T) (ON LEFT SIDE OF TRANSMISSION) PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED WIRE RUN WIRE STARTER MOTOR STARTER RELAY STARTER SOLENOID SWITCH (M/T) (ON TOP OF CLUTCH PEDAL ASSEMBLY) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENG COMPT) UNDERHOOD JUNCTION BLOCK (AT LEFT SIDE OF ENG COMPT) YEL WIRE YEL/BLK WIRE