GMC Sierra 2500 HD (2002-2012) tan/blk Wiring diagrams

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

1 5 B(+) GMLAN L 2501 2500 COMPUTER DATA LINES SYSTEM 3340 5060 COMPUTER DATA LINES SYSTEM 4.3L 6.6L EXCEPT 4.3L, 6.6L 4.3L A/C CMPRSR FUSE 17 (EXCEPT 6.6L) FUSE 16 (6.6L) A/C CMPRSR RELAY A/C IND A/C ON A/C REFRIGERANT PRESSURE SENSOR (NEAR COMPRESSOR, ON A/C HIGH PRESSURE HOSE) BLK WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) GROUND GRY WIRE HOT AT ALL TIMES HVAC BATT FUSE 39 (EXCEPT 6.6L) FUSE 36 (6.6L) HVAC CONTROL MODULE LOGIC MANUAL A/C AUTOMATIC A/C ORG/BLK WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT)

2 HI 4 HI 4 LO 6 12 13 14 1563 1566 1565 1561 2 HI 4 HI 4 LO AWD AUTO (IF EQUIPPED) PNK WIRE BLK WIRE BRN/WHT WIRE CREW CAB DRIVER DOOR LOCK SWITCH DRIVER WINDOW SWITCH EXTENDED CAB GARAGE DOOR OPENER (GDO) (IF EQUIPPED) SLIDING REAR WINDOW SWITCH (IF EQUIPPED) LEFT REAR WINDOW SWITCH LOGIC LT GRN/BLK WIRE OUTSIDE REARVIEW MIRROR SWITCH PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW SWITCH PNK WIRE PPL/WHT WIRE RIGHT REAR WINDOW SWITCH SUNROOF SWITCH (IF EQUIPPED) TAN/BLK WIRE TRANSFER CASE SHIFT CONTROL MODULE (LOWER LEFT SIDE OF DASH) TRANSFER CASE SHIFT CONTROL SWITCH (ON TOP LEFT OF TRANSFER CASE) W/ ELECTRIC DOOR LOCK CONTROL W/ POWER WINDOWS

1 2 3 4 BATTERY SRL DATA 1140 194 BATTERY DR UNLK RLY DR LK RLY SERIAL DATA ALL TIMES UNDERHOOD JUNCTION BLOCK (ON LEFT SIDE OF ENGINE COMPT) TBC FUSE BLK WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK (NEAR LEFT KICK PANEL) DK GRN/WHT WIRE DOOR LOCK RELAY DOOR UNLOCK RELAY DR LOCK FUSE DRIVER DOOR LOCK ACTUATOR DRIVER DOOR LOCK SWITCH GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGN KEY SIG IGNITION KEY ALARM SWITCH (PART OF STEERING COLUMN ASSEMBLY) INSTRUMENT PANEL CLUSTER VSS SIGNAL LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LOCK LOCK FUSE LT BLU WIRE LT GRN WIRE MIR/ LOCK FUSE NCA WIRE ORG/ WIRE PASSENGER DOOR LOCK ACTUATOR PASSENGER DOOR LOCK SWITCH POWERTRAIN CONTROL MODULE (LEFT FRONT INSIDE OF ENGINE COMPARTMENT) VSS SIGNAL REMOTE CONTROL DOOR LOCK RECEIVER (BEHIND TOP CENTER OF DASH) SPLICE PACK 203 SPLICE PACK 203 (UPPER LEFT KICK PANEL) TAN WIRE TAN/BLK WIRE UNLOCK UNLOCK FUSE UNLOCK JMPR FUSE VSS DRV DR UNLK RLY WHT WIRE

1 2 3 4 BATTERY SRL DATA 1140 194 BATTERY UNLOCK IN LOCK IN SERIAL DATA 80 817 IGN KEY SWITCH VSS LF DR UNLK IN BLK WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK (NEAR LEFT KICK PANEL) DK GRN/WHT WIRE DOOR LOCK RELAY DOOR UNLOCK RELAY DR LOCK FUSE DRIVER DOOR LOCK ACTUATOR DRIVER DOOR UNLOCK RELAY DRIVER WINDOW/DOOR LOCK SWITCH GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGNITION KEY ALARM SWITCH (PART OF STEERING COLUMN ASSEMBLY) INSTRUMENT PANEL CLUSTER VSS SIGNAL LEFT I/P BLOCK (ON LOWER LEFT SIDE OF DASH) LOCK LOCK FUSE LT BLU WIRE LT GRN WIRE MIR/LOCK FUSE NCA WIRE ORG/ WIRE PASSENGER DOOR LOCK ACTUATOR PASSENGER WINDOW/DOOR LOCK SWITCH POWERTRAIN CONTROL MODULE (LEFT FRONT INSIDE OF ENGINE COMPARTMENT) VSS SIGNAL REMOTE CONTROL DOOR LOCK RECEIVER (BEHIND TOP CENTER OF DASH) RIGHT I/P FUSE BLOCK (ON LOWER RIGHT SIDE OF I/P) SPLICE PACK 203 SPLICE PACK 203 (UPPER LEFT KICK PANEL) TAN WIRE TAN/BLK WIRE UNLOCK UNLOCK FUSE WHT WIRE

4.3L EXCEPT 4.3L 6.6L 6 SPEED A/T ALLISON TRANSMISSION 6 SPEED A/T AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) BATTERY BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - ENGINE CONTROL MODULE (ECM) (EXCEPT HYBRID: LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) (HYBRID: LEFT FRONT OF ENGINE COMPT) HEAD IGN IGNITION SWITCH LOCK MEGA FUSE ORG/ WIRE ORG/BLK WIRE PARK/ NEUTRAL POSITION (PNP) SWITCH (ON LEFT REAR SIDE OF TRANSMISSION) PARK/NEUTRAL SIGNAL PNK WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY PPL RED WIRE RUN WIRE STARTER MOTOR STRT RLY CTRL STRTR FUSE 62 (EXCEPT 6.6L) FUSE 57 (6.6L) TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION CONTROL MODULE (TCM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) STRTR RELAY WHT WIRE YEL WIRE YEL/BLK WIRE

AIR BAG FUSE AIR BAG INDICATOR BLK WIRE BLK/WHT WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) GROUND GRY WIRE HIGH CONTROL CLASS 2 SERIAL DATA HOT IN RUN, START IGN 1 FUSE IGNITION INFLATABLE RESTRAINT I/P MODULE INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER DRIVER'S SEAT) INFLATABLE RESTRAINT STEERING WHEEL MODULE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSTRUMENT PANEL CLUSTER (IPC) JUNCTION BLOCK-BODY (UNDER LEFT SIDE OF DASH, NEAR LEFT KICK PANEL) NCA WIRE OFF OFF ON PNK WIRE PPL 1132 PPL/WHT WIRE SHORTING BAR SOLID STATE SPLICE PACK 205 TAN/BLK WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

2-HI IND 4-HI IND 4-LO IND ATC FUSE AUTO AUXILIARY BATTERY RELAY B+ MOTOR (CCW) MOTOR (CW) GND BLK WIRE BLK/WHT WIRE BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) BRAKE CONTROL BRN WIRE BRN/WHT WIRE CONTROL MODULE CTRL DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENCODER LOGIC ENCODER MOTOR ENCODER RTN FRONT AXLE ACTUATOR FRONT PROP- SHAFT SPEED SENSOR FT SHAFT SIG FT SHAFT RTN FUSE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, START ILLUMINATION LAMP (2) INSTRUMENT PANEL CLUSTER LAMP LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOCK SOL OUT LOGIC LT BLU WIRE LT GRN/BLK WIRE MODULE GND 4-LO IND 4-HI IND NEUTRAL IND FT AXLE CTRL RR SHAFT SIG RR SHAFT RTN NCA WIRE NEUTRAL IND ORG/ WIRE PNK WIRE PPL PPL/WHT WIRE REAR PROP- SHAFT SPEED SENSOR RED WIRE RED/WHT WIRE REF RUN WIRE SHIFT MOTOR SOLID STATE SPLICE PACK TAN WIRE TAN/BLK WIRE TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLAMP SWITCH) TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) YEL WIRE YEL/BLK 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