GMC Sierra 2500 (2000-2004) org/ Wiring diagrams

1 2 6 8 16 19 20 21 24 40 42 46 47 48 51 62 63 GND TCC PWM PC SOL HI PC SOL LO 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 3-2 CTRL SOLENOID 407 (OR 720) A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION BLK (OR GRY) WIRE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY WIRING HARNESS JUNCTION BLOCK BRAKE FUSE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE ECMB FUSE ENGINE COOLANT TEMPERATURE SENSOR (LEFT FRONT OF CYLINDER HEAD) ENGINE WIRING HARNESS JUNCTION BLOCK EX CAN BUILT CANADIAN BUILT FLUID TEMP SENSOR FRT AXLE SW VSS LO (GROUND) VSS HI (SIGNAL) FUSE FUSE BLOCK GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, BULB TEST, START HOT IN RUN, START INSTRUMENT CLUSTER LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV, LO RUN WIRE SENS GND B+ CLS 2 DATA CLS 2 DATA SENS GND PRND B ECT SIG IGN 3-2 SS SPLICE PACK STOPLIGHT SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC SOLENOID THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSY) TP SIG GND TCC SOL MIL CTRL 2-3 SS 1-2 SS TFT SENS SIG PRND C TRANS RNG A VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VSS ADAPTER W/ TRACTION W/O TRACTION WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 41 46 54 57 58 59 63 72 74 75 LO REF A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK (UNDER LEFT END OF DASH) BRAKE FUSE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ECMB FUSE EXCEPT LIGHT DUTY FLUID TEMP SENSOR FUSE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, BULB TEST, START HOT IN RUN, START INSTRUMENT CLUSTER INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LIGHT DUTY LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL ABS SYSTEM PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL PPL PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV, LO RUN WIRE SENS GND B+ CLS 2 DATA CLS 2 DATA SENS GND PRND B ECT SIG IGN SPLICE PACK STOPLIGHT SWITCH (TOP OF BRAKE PEDAL BRACKET) TCC PWM SOLENOID TRANSFER CASE) (ON TRANSMISSION) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) VSS ADAPTER W/ TRACTION ASSIST W/O TRACTION ASSIST WHT WIRE YEL WIRE YEL/BLK WIRE

BACK BLK WIRE DK BLU WIRE DK GRN WIRE DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT FRONT VERTICAL MOTOR DRIVER SEAT HORIZONTAL MOTOR DRIVER SEAT REAR VERTICAL MOTOR FRONT DN FRONT PASENGER SEAT FRONT VERTICAL MOTOR FRONT PASSENGER SEAT ADJUSTER SWITCH FRONT PASSENGER SEAT HORIZONTAL MOTOR FRONT PASSENGER SEAT REAR VERTICAL MOTOR FRONT UP HOT AT ALL TIMES LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE ORG/ WIRE PICKUP UTILITY REAR DN REAR UP RED WIRE SEAT CIRCUIT BREAKER TAN WIRE YEL WIRE

1 14 26 SUPPLY VOLTAGE SUPPLY VOLTAGE LOW REF BACK ONLY IND BACK ONLY INDICATOR BACK ONLY SELECT BACK, CUSHION SELECT BATT + BCK, CSH SELECT BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DDM FUSE DK BLU WIRE DK LT DK PNK WIRE DRIVER BACK HEATED SEAT ELEMENT DRIVER CUSHION HEATED SEAT ELEMENT DRIVER DOOR MODULE FRONT PASSENGER BACK HEATED SEAT ELEMENT FRONT PASSENGER CUSHION HEATED SEAT ELEMENT FRONT PASSENGER DOOR MODULE GRN WIRE GROUND HI HEAT IND HI HEAT INDICATOR HOT AT ALL TIMES I/P RELAY BLOCK LEFT I/P FUSE BLOCK LOW HEAT IND LOW HEAT INDICATOR LT BLU WIRE LT DOORS CIRCUIT BREAKER LT GRN WIRE MED HEAT IND MED HEAT INDICATOR MEMORY SEAT MODULE (UNDERSIDE OF LEFT FRONT SEAT) MEMORY/HEATED SEAT SWITCH NCA WIRE ORG/ WIRE PDM FUSE PNK WIRE PPL RED WIRE RED/WHT WIRE RIGHT I/P FUSE BLOCK RT DOORS CIRCUIT BREAKER SEATS CIRCUIT BREAKER SERIAL DATA SWITCH POWER TAN WIRE WHT WIRE YEL WIRE

BLK WIRE BLU WIRE DK PNK WIRE DK PPL PNK WIRE DRIVER DRIVER SEAT SEAT BOLSTER LUMBAR DRIVER LUMBAR/ BOLSTER SWITCH HOT AT ALL TIMES IN OUT IN LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) ORG/ WIRE OUT OUT IN PASS- ENGER LUMBAR/ BOLSTER SWITCH PASSENGER PASSENGER SEAT SEAT BOLSTER LUMBAR PICKUP UTILITY POWER SEATS CIRCUIT SEAT CIRCUIT BREAKER TAN WIRE WHT WIRE

BLK WIRE BRN WIRE DEFOGGER SYSTEM DOWN DRIVER OUTSIDE REARVIEW MIRROR DRIVER POWER WINDOW/ DOOR LOCK SWITCH FUSE BLOCK GRN WIRE HEATING ELEMENT HOT AT ALL TIMES MIR/ LOCK FUSE LEFT LEFT RIGHT LEFT/ RIGHT MOTOR LT GRN WIRE MEMORY SYSTEMS NCA WIRE ORG/ WIRE OUTSIDE REARVIEW MIRROR SWITCH PASSENGER OUTSIDE REARVIEW MIRROR PPL PPL/WHT WIRE RED WIRE RIGHT UP/ DOWN MOTOR WHT WIRE YEL WIRE

4.3L 7 8 9 10 11 12 13 14 15 PNK WIRE ANTENNA BASE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL MODULE DIM SIG IN DRAIN RT OUTPUT LT OUTPUT AUDIO RTN GROUND E&C LINE BATTERY BARE DIM SIG OUT DRAIN RT INPUT LT INPUT AUDIO RTN GROUND E&C LINE BATTERY BARE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EXCEPT 4.3L GRY WIRE HOT AT ALL TIMES HOT WITH RAP RELAY ENERGIZED IGNITION BATTERY INSTRUMENT CLUSTER LEFT BUSSED ELECTRICAL CENTER (ON LOWER LEFT SIDE OF DASH) LEFT FRONT DOOR SPEAKER LEFT REAR SPEAKER LF - LF + RF - RF + GROUND PARK LPS DIMMER LT BLU WIRE LT GRN WIRE MID BUSSED ELECTRICAL CENTER (NEAR LEFT KICK PANEL) NCA WIRE ORG/ WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL/WHT WIRE PREMIUM RADIO RADIO FUSE RAO I FUSE REMOTE COMPACT DISK PLAYER RIGHT FRONT DOOR SPEAKER RIGHT REAR SPEAKER TAN WIRE UNDERHOOD BUSSED ELECTRICAL CENTER (ON LEFT SIDE OF ENGINE COMPT) VEHICLE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) VSS SIGNAL VSS SIGNAL RR (-) RR (+) LR (-) LR (+) YEL WIRE

2-HI IND 4-HI IND 4-LO IND 4.3L 4.8L, 5.3L, 6.0L ATC FUSE AUTO AUXILIARY BATTERY RELAY AWD IND B+ MOTOR (CCW) MOTOR (CW) GND BLK WIRE BLK/WHT WIRE BODY WIRING HARNESS JUNCTION BLOCK BRAKE CONTROL BRN WIRE BRN/WHT WIRE CONTROL MODULE CTRL DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENCODER MOTOR ENCODER RTN ENGINE WIRING HARNESS JUNCTION BLOCK FRONT AXLE ACTUATOR/ SWITCH FRONT PROP- SHAFT SPEED SENSOR FT SHAFT SIG FT SHAFT RTN FUSE FUSE BLOCK GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, START ILLUMINATION LAMP (2) INDICATOR LAMP INSTRUMENT CLUSTER 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 ENCODER LOGIC RED WIRE RED/WHT WIRE REF RUN WIRE SHIFT MOTOR SOLID STATE SPLICE PACK TAN WIRE TAN/BLK WIRE TRANSFER CASE SELECT SWITCH YEL WIRE YEL/BLK WIRE

2-HI IND 4-HI IND 4-LO IND 4.3L 4.8L, 5.3L, 6.0L ATC FUSE AUTO AUXILIARY BATTERY RELAY AWD IND B+ MOTOR (CCW) MOTOR (CW) GND BLK WIRE BLK/WHT WIRE BODY WIRING HARNESS JUNCTION BLOCK BRAKE CONTROL BRN WIRE BRN/WHT WIRE CONTROL MODULE CTRL DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENCODER MOTOR ENCODER RTN ENGINE WIRING HARNESS JUNCTION BLOCK FRONT AXLE ACTUATOR/ SWITCH FRONT PROP- SHAFT SPEED SENSOR FT SHAFT SIG FT SHAFT RTN FUSE FUSE BLOCK GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN, START ILLUMINATION LAMP (2) INDICATOR LAMP INSTRUMENT CLUSTER 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 ENCODER LOGIC RED WIRE RED/WHT WIRE REF RUN WIRE SHIFT MOTOR SOLID STATE SPLICE PACK TAN WIRE TAN/BLK WIRE TRANSFER CASE SELECT SWITCH YEL WIRE YEL/BLK WIRE

BASE BATTERY SERIAL DATA GROUND BLK WIRE BLK/WHT WIRE BLU WIRE BODY RELAY BLOCK BODY RELAY BLOCK (LEFT SIDE OF DASH, NEAR KICK PANEL) BRN WIRE CRUISE FUSE DK BLU WIRE DK GRN WIRE DOOR JAMB SW IN DRIVER MINI WEDGE SWITCH DRIVER POWER WINDOW/ DOOR LOCK SWITCH EXTERIOR LIGHTS FUSE BLOCK GRY WIRE HDLMP RLY CNTRL PARK LIGHTS IN KEY IN IGN HEADLAMP SWITCH HOT AT ALL TIMES UNDERHOOD FUSE BLOCK TBC FUSE HOT IN RUN HOT IN RUN OR START HOT WITH PARK LIGHTS ON IGN 1 FUSE IGNITION KEY ALARM SWITCH INSTRUMENT CLUSTER INSTRUMENT PANEL CLUSTER (IPC) INT PRK FUSE LEFT I/P FUSE BLOCK LOGIC LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PARK BRAKE SWITCH PNK IGNITION 1 IGNITION 3 SEAT BELT INPUT PARK BRAKE SW WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE COMPARTMENT) RIGHT TURN INPUT LEFT TURN INPUT GROUND SEAT BELT IND SEAT BELT SWITCH (ON DRIVER'S SEAT BELT BUCKLE) TAN WIRE TURN SIGNAL/ MULITFUNCTION SWITCH UNDERHOOD FUSE BLOCK WHT WIRE