GMC Sierra 2500 HD (2002-2012) splice pack Wiring diagrams

40 12 17 MIL CONTROL SIGNAL HIGH - FRONT PTO STATUS 73 36 GROUND GROUND 9 18 15 2 1 GROUND IGNITION CLASS 2 SERIAL DATA CAN DATA LO CAN DATA HI ALLISON TRANSMISSION TCC PWM SOLENOID SOLENOID BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BELOW STEERING COLUMN) BRAKE FUSE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM CAN DATA LO DATA LINK CONNECTOR DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROLS SYSTEM (IN ENGINE HARNESS) EXCEPT SEO FUSE GRN DK WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) PCM B FUSE 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) PARK/NEUTRAL SIG PNK 1049 2362 2361 WIRE PNK 451 2522 420 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL PPL PPL/WHT WIRE PRESSURE SWITCH MANIFOLD VEHICLE SPEED SENSOR RED WIRE RED/BLK WIRE REV RUN WIRE SEO SIG HI-FRONT COMPUTER DATA LINES SYSTEM 2361 2470 CAN DATA HI CLASS 2 DATA SPLICE PACK STOPLAMP SWITCH (ON BRAKE PEDAL BRACKET) TAN WIRE TFT SENSOR TRIM SOLENOIDS TFT SIGNAL TOW/HAUL SWITCH (IF EQUIPPED) TRANS MIL REQUEST 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) VSS ADAPTER WHT WIRE YEL WIRE YEL/BLK WIRE

56 39 PNK IGNITION PARK/NEUTRAL SIG WIRE ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR DK BLU WIRE DK BLU/BLK WIRE DK GRN WIRE ENGINE CONTROLS SYSTEM EXCEPT SEO FUSE GRY WIRE HOT AT ALL TIMES INPUT SPEED SENSOR (IN TRANSMISSION) INSTRUMENT PANEL CLUSTER (IPC) INTERNAL MODE SWITCH IPC/DIC FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP OF TRANSMISSION) ORG/ WIRE ORG/BLK WIRE P/N PNK 10 11 12 WIRE PNK 7 8 9 WIRE PNK WIRE PNK/BLK WIRE PPL PPL PPL PPL PPL 1 2 PPL/BLK WIRE PPL/WHT WIRE PRESSURE SWITCH MANIFOLD PTO STATUS RED WIRE RED/BLK WIRE SEO SPLICE PACK TAN WIRE TAN/WHT WIRE TFT SENSOR TOW/HAUL SWITCH TRANSFER CASE) TURBINE SPEED SENSOR (IN TRANSMISSION) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) BATTERY) VEHICLE SPEED SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE

56 39 PNK IGNITION PARK/NEUTRAL SIG WIRE ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR DK BLU WIRE DK BLU/BLK WIRE DK GRN WIRE ENGINE CONTROLS SYSTEM EXCEPT SEO FUSE GRY WIRE HOT AT ALL TIMES INPUT SPEED SENSOR (IN TRANSMISSION) INSTRUMENT PANEL CLUSTER (IPC) INTERNAL MODE SWITCH IPC/DIC FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP OF TRANSMISSION) ORG/ WIRE ORG/BLK WIRE P/N PNK 10 11 12 WIRE PNK 7 8 9 WIRE PNK WIRE PNK/BLK WIRE PPL PPL PPL PPL PPL 1 2 PPL/BLK WIRE PPL/WHT WIRE PRESSURE SWITCH MANIFOLD PTO STATUS RED WIRE RED/BLK WIRE SEO SPLICE PACK TAN WIRE TAN/WHT WIRE TFT SENSOR TOW/HAUL SWITCH TRANSFER CASE) TURBINE SPEED SENSOR (IN TRANSMISSION) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) BATTERY) 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

ALLISON TRANSMISSION BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR DK BLU WIRE DK BLU/BLK WIRE DK GRN WIRE ENGINE CONTROLS SYSTEM EXCEPT SEO FUSE GRY WIRE HOT AT ALL TIMES INPUT SPEED SENSOR (IN TRANSMISSION) INSTRUMENT PANEL CLUSTER (IPC) INTERNAL MODE SWITCH IPC/DIC FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP OF TRANSMISSION) ORG/ WIRE ORG/BLK WIRE P/N PNK 12 13 14 WIRE PNK WIRE PNK/BLK WIRE PPL PPL PPL PPL PPL 1 2 PPL/BLK WIRE PPL/WHT WIRE PRESSURE SWITCH MANIFOLD RED WIRE RED/BLK WIRE SEO SPLICE PACK TAN/BLK WIRE TAN/WHT WIRE TFT SENSOR TOW/HAUL SWITCH TRANSFER CASE) TURBINE SPEED SENSOR (IN TRANSMISSION) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) BATTERY) VEHICLE SPEED SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE

1 8 13 B+ LOW REF LO SPD DATA BLK WIRE BLK/WHT WIRE BLU WIRE CHIME MODULE (EXCEPT W/RADIO) (CENTER OF DASH) COMPUTER DATA LINES SYSTEM DIESEL DK GRN WIRE DLIS FUSE 36 FUSE 34 DRIVER SEAT BELT SW SIG DRIVER'S INFO CENTER DRIVER'S SEAT BELT WARNING LED EXCEPT W/RADIO GAS DIESEL GMLAN LO-SPD SERIAL DATA GRY WIRE HOT AT ALL TIMES IGNITION SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER DRIVER'S SEAT) INSTRUMENT PANEL CLUSTER IPC FUSE 48 FUSE 46 JUNCTION BLOCK (LEFT I/P) (LOWER LEFT SIDE OF DASH) KEY-IN IGNITION SWITCH LOGIC LT BLU WIRE NCA WIRE PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) PARK/NEUTRAL POSITION SWITCH (ON LEFT REAR SIDE OF TRANSMISSION) PNK LOW REF WIRE PNK PNK SUPPLEMENTAL RESTRAINTS SYSTEM WIRE PNK WIRE RADIO (W/RADIO) (CENTER OF DASH) RANGE SW - C RANGE SW A RANGE SW B RANGE SW P RDO FUSE 43 FUSE 41 RED/WHT WIRE SEAT BELT BUCKLE (DRIVER) SEAT BELT SWITCH SOUND SYSTEM SPLICE PACK TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPARTMENT) W/RADIO WHT WIRE YEL WIRE

1 8 13 B+ LOW REF LO SPD DATA BLK WIRE BLK/WHT WIRE BLU WIRE CHIME MODULE (EXCEPT W/RADIO) (CENTER OF DASH) COMPUTER DATA LINES SYSTEM DIESEL DK GRN WIRE DLIS FUSE 36 FUSE 34 DRIVER SEAT BELT SW SIG DRIVER'S INFO CENTER DRIVER'S SEAT BELT WARNING LED EXCEPT W/RADIO GAS DIESEL GMLAN LO-SPD SERIAL DATA GRY WIRE HOT AT ALL TIMES IGNITION SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER DRIVER'S SEAT) INSTRUMENT PANEL CLUSTER IPC FUSE 48 FUSE 46 JUNCTION BLOCK (LEFT I/P) (LOWER LEFT SIDE OF DASH) KEY-IN IGNITION SWITCH LOGIC LT BLU WIRE NCA WIRE PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) PARK/NEUTRAL POSITION SWITCH (ON LEFT REAR SIDE OF TRANSMISSION) PNK LOW REF WIRE PNK PNK SUPPLEMENTAL RESTRAINTS SYSTEM WIRE PNK WIRE RADIO (W/RADIO) (CENTER OF DASH) RANGE SW - C RANGE SW A RANGE SW B RANGE SW P RDO FUSE 43 FUSE 41 RED/WHT WIRE SEAT BELT BUCKLE (DRIVER) SEAT BELT SWITCH SOUND SYSTEM SPLICE PACK TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPARTMENT) W/RADIO WHT WIRE YEL WIRE

B+ VOLT BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DOOR LOCKS SYSTEM DOWN DRIVER DOOR SWITCH (DDS) DRIVER WINDOW EXPRESS DOWN WINDOW DOWN FUSE BLOCK (I/P) (LEFT SIDE OF DASH) GROUND HOT AT ALL TIMES ILLUMINATION JUNCTION BLOCK (LEFT I/P) JUNCTION BLOCK (RIGHT I/P) LO SPD SERIAL DATA LO-SPEED SERIAL DATA LOGIC LOGIC B+ LOGIC PWR WND LOCKOUT LR SIGNAL LR WINDOW LT BLU/WHT WIRE LT DR CIRCUIT BREAKER LT GRN WIRE PASSENGER DOOR SWITCH (PDS) PPL PPL PWR WND SWITCH LR DOWN SIGNAL PWR WND LOCKOUT LR CTRL PWR WND LOCKOUT RR CTRL PWR WND LOCKOUT RR SIG PWR WND MOTOR LF DOWN CTRL PWR WND MOTOR LF UP CTRL PWR WND MOTOR LR DOWN CTRL PWR WND MOTOR RF DOWN CTRL PWR WND MOTOR RF UP CTRL PWR WND MOTOR RR UP CTRL PWR WND SW LR DOWN SIG PWR WND SW LR UP SIG PWR WND SW RR DOWN SIG PWR WND SW RR UP SIG PWR WND SWITCH LR UP SIGNAL PWR WND SWITCH RR DOWN SIGNAL PWR WND SWITCH RR UP SIGNAL RED/WHT WIRE RR WINDOW RT DOORS CIRCUIT BREAKER SPLICE PACK SWITCH POWER UP LEFT REAR WINDOW PWR WND MOTOR LR UP CTRL W/ POWER REAR SIDE WINDOWS WINDOW DOWN WINDOW LOCKOUT INDICATOR DOWN WINDOW LOCKOUT SWITCH WINDOW MOTOR (DRIVER) (INSIDE DRIVER'S DOOR) WINDOW MOTOR (LEFT REAR) (IN LEFT REAR DOOR) WINDOW MOTOR (PASSENGER) (INSIDE PASSENGER'S DOOR) WINDOW MOTOR (RIGHT REAR) (IN RIGHT REAR DOOR) WINDOW PASSENGER WINDOW SWITCH (LEFT REAR) (W/POWER REAR SIDE WINDOWS) WINDOW SWITCH (RIGHT REAR) (W/POWER REAR SIDE WINDOWS) WINDOW SWITCH PASSENGER WINDOW UP WINDOW UP EXPRESS DOWN WINDOW DOWN WINDOW UP RIGHT REAR WINDOW PWR WND MOTOR RR DOWN CTRL

1 2 3 4 5 6 7 8 9 10 11 12 13 14 B+ 1 8 13 B+ LOW REF LO SPD DATA BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE IND CHIME MODULE (CENTER OF DASH, BEHIND RADIO) DK GRN WIRE DLIS FUSE 35 FUSE 32 DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SW SIG DRIVER SEAT BELT SWITCH GAS DIESEL HOT AT ALL TIMES IGNITION SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER DRIVER'S SEAT) INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 46 FUSE 43 KEY-IN IGNITION SWITCH LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LO SPD GMLAN SERIAL DATA LOGIC LOW REF LOW TIRE PRESSURE IND LT BLU WIRE NCA WIRE PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) PNK LOW REF WIRE PNK PNK SUPPLEMENTAL RESTRAINTS SYSTEM WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RADIO RDO FUSE 42 FUSE 39 RED/WHT WIRE SEAT BELT IND SERIAL DATA SOUND SYSTEMS SPLICE PACK TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ LUXURY EDITION W/ RADIO PROVISIONS W/O RADIO PROVISIONS WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 B+ 1 8 13 B+ LOW REF LO SPD DATA BLK WIRE BLK/WHT WIRE BLU WIRE CHIME MODULE (CENTER OF DASH, BEHIND RADIO) DK BLU WIRE DK GRN WIRE DLIS FUSE 35 FUSE 32 DRIVER INFORMATION CENTER (DIC) DISPLAY DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SWITCH GASOLINE DIESEL HOT AT ALL TIMES IGNITION SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER DRIVER'S SEAT) INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 46 FUSE 43 KEY-IN IGNITION SWITCH LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT SEAT BELT SW LO SPD GMLAN SERIAL DATA LOGIC LOW ENGINE OIL PRESSURE IND LOW REF LOW TIRE PRESSURE IND LT BLU WIRE NCA WIRE OFF PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL RADIO RDO FUSE 42 FUSE 39 RED/WHT WIRE RUN WIRE SEAT BRAKE BELT IND IND SERIAL DATA SOUND SYSTEMS SPLICE PACK SUPPLEMENTAL RESTRAINTS SYSTEM TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ RADIO PROVISIONS W/O LUXURY EDITION W/O RADIO PROVISIONS WHT WIRE