GMC Sierra 2500 (2000-2004) hot in run Wiring diagrams

20 29 21 30 49 15 EXCEPT 4.3 L 4.3L ABS FUSE BLK WIRE BLK/WHT WIRE BODY WIRING HARNESS JUNCTION BLOCK (NEAR LEFT KICK PANEL) BRAKE FLUID LEVEL SW IN BRAKE FLUID LEVEL SWITCH (LEFT SIDE OF BRAKE FLUID RESERVOIR) BRAKE FUSE BRAKE INPUT SERIAL DATA BRAKE PRESSURE MODULATOR VALVE BRN WIRE DATA LINK CONNECTOR (BELOW STEERING COLUMN) DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT SIDE OF INNER FRAME) ENGINE CONTROL SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK (LEFT SIDE OF ENGINE COMPT) FRONT AXLE ACTUATOR/ SWITCH (ON AXLE HOUSING) FUSE BLOCK (LOWER LEFT SIDE OF DASH) GROUND MOTOR, SOLENOID PWR GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN AND START IGN 1 FUSE IGNITION LEFT FRONT SENSOR (-) RIGHT FRONT SENSOR (+) INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED SENSOR LOGIC LT BLU WIRE LT GRN/BLK WIRE NCA WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE OR VEHICLE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL PPL PPL/WHT WIRE PUMP MOTOR RED WIRE RIGHT FRONT WHEEL SPEED SENSOR SPLICE PACK 205 CENTER (NEAR LEFT KICK PANEL) STOPLAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR ADAPTER VSS HIGH VSS LOW VSS OUTPUT YEL WIRE YEL/BLK WIRE

BLK WIRE BRN WIRE FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) GROUND (BASE) GROUND (UPLEVEL) HOT AT ALL TIMES HOT IN RUN HVAC 1 FUSE HVAC CONTROL MODULE (IN CENTER OF DASH, UNDER RADIO) IGN IND RELAY CTRL PPL REAR WINDOW DEFOGGER GRID REAR WINDOW DEFOGGER RELAY RR DEFOG FUSE SPLICE PACK WHT WIRE

4-DOOR 2-DOOR B/U LPS FUSE BACK BLK WIRE BODY WIRING HARNESS JUNCTION BLOCK BRN WIRE BTSI FUSE DRIVER POWER SEAT SWITCH ENGINE WIRING HARNESS JUNCTION BLOCK FORWARD/ REARWARD MOTOR FRONT TILT MOTOR FRT DN FRT UP FUSE BLOCK HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START IGN IGN 3 FUSE LEFT POWER WINDOW/ DOOR LOCK SWITCH LT GRN WIRE LT GRN/BLK WIRE MEMORY SEAT MODULE (UNDERSIDE OF DRIVER'S SEAT) MEMORY SEAT SWITCH MIR/LOCK FUSE NCA WIRE ORG/ WIRE PARK SW IN PARK/ NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK WIRE PPL RCL 1 RCL 1 SW RCL 2 RCL 2 SW RCL BACK RCL FWD REAR DN REAR TILT MOTOR REAR UP RECLINER MOTOR SEATS CIRCUIT BREAKER SET SW SET- SHIFT INTERLOCK SYSTEM WHT WIRE

1995 VFTC ANTI-THEFT SYSTEM BATTERY IGNITION IGNITION GROUND GROUND EVO LOW EVO HIGH SERIAL DATA 5 VOLT REF BLK WIRE BLU WIRE BODY CONTROL MODULE (IN CENTER CONSOLE) BODY WIRING HARNESS JUNCTION BLOCK (UNDER LEFT BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE FUSE ENGINE COMPT, NEAR BATTERY) ENGINE WIRING HARNESS JUNCTION BLOCK (LEFT SIDE OF EVO ACTUATOR (PART OF POWER STEERING PUMP) GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN, START I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) IGN 1 FUSE LT BLU WIRE LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE SIDE OF DASH) SIGNAL RETURN STEERING HANDWHEEL POSITION/SPEED SENSOR (ON STEERING COLUMN, NEAR FIREWALL) TBC FUSE WHT WIRE

1995 VFTC BATTERY BLK WIRE BODY COMPUTER SYSTEM BODY WIRING HARNESS JUNCTION BLOCK (UNDER LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COMPT, NEAR BATTERY) ENGINE WIRING HARNESS JUNCTION BLOCK (LEFT SIDE OF EVO ACTUATOR (PART OF POWER STEERING PUMP) GRN WIRE GROUND GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK I/P WIRING HARNESS JUNCTION BLOCK (LOWER RIGHT SIDE OF DASH) IGN 3 FUSE IGNITION INSTRUMENT CLUSTER SYSTEM LT BLU WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPARTMENT) RTD FUSE SERIAL DATA EVO FEED EVO RETURN STEERING HAND WHEEL POSITION/SPEED SENSOR (NEAR BASE OF STEERING COLUMN) SUSPENSION CONTROL MODULE (REAR OF RIGHT WHEELWELL) TRACK 1 INPUT TRACK 2 INPUT LOW REFERENCE VSS INPUT WHT WIRE

A/C COMP RELAY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C FUSE A/C HIGH PRESSURE RECIRCULATION SWITCH (IN A/C MUFFLER HOSE) A/C HIGH PRESSURE SWITCH (REAR OF COMPRESSOR) A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C REQUEST A/C SWITCH AIR TEMPERATURE ACTUATOR (BOTTOM CENTER OF BLK WIRE BLOWER MOTOR (UNDER RIGHT SIDE OF DASH) BLOWER MOTOR RELAY ASSEMBLY (ON HVAC MODULE, NEAR BLOWER MOTOR) BLOWER RELAY BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH) BRN WIRE CTRL RECIRC DOOR DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FRT HVAC FUSE GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HTR A/C FUSE HVAC 1 FUSE HVAC CONTROL ASSEMBLY HVAC CONTROL MODULE (BEHIND CENTER OF DASH) IGN E FUSE LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOW OFF LT BLU WIRE MODE ACTUATOR (LEFT SIDE OF HVAC MODULE) ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE OF ENGINE COMPT) PPL PRESS SW A/C HIGH REAR DEFOG RLY IGN 3 VOL A/C REQUEST ACT POS SIG RECIRCULATION ACTUATOR (TOP OF HVAC MODULE) RED WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE YEL WIRE

11 11 17 17 (GASOLINE) (DIESEL) A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C FUSE A/C HIGH PRESS SW A/C HIGH PRESSURE RECIRCULATING SWITCH (IN A/C MUFFLER HOSE) A/C HIGH PRESSURE SWITCH (REAR OF COMPRESSOR) A/C LOW PRESSURE SWITCH (RIGHT SIDE OF ACCUMULATOR) A/C REQUEST A/C SWITCH AIR TEMPERATURE ACTUATOR (BOTTOM CENTER OF BLK WIRE BLOWER MOTOR (UNDER RIGHT SIDE OF DASH) BLOWER MOTOR RESISTOR ASSEMBLY (ON HVAC MODULE, NEAR BLOWER MOTOR) BLOWER RELAY BRN WIRE DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FRT HVAC FUSE GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HTR A/C FUSE HVAC 1 FUSE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) HVAC MODULE IGN E FUSE LEFT I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) LO OFF LT BLU WIRE MODE ACTUATOR (LEFT SIDE OF HVAC MODULE) ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE COMPT) PPL REAR DEFOG RLY IGN 3 VOL A/C REQUEST ACT POS SIG RECIRC DOOR CTRL RECIRCULATION ACTUATOR (TOP OF HVAC MODULE) RED WIRE RELAY CTRL A/C COMP RIGHT I/P FUSE BLOCK (LOWER RIGHT SIDE OF DASH) TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) WHT WIRE YEL WIRE

1-2 SOL 2 3 4 PPL 2-3 SOL 28 29 30 PNK WIRE 3-2 SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLU WIRE BODY JUNCTION BLOCK BRAKE FUSE BRN WIRE BRN/RED WIRE CAMSHAFT POSITION SENSOR (TOP CENTER REAR OF ENGINE) CLUTCH PEDAL POSITION SWITCH (TOP OF PEDAL BRACKET) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANISTER PURGE VALVE (TOP RIGHT REAR OF ENGINE) EVAP CANISTER VENT VALVE (LEFT FRONT SIDE OF FUEL TANK) EXHAUST GAS RECIRCULATION VALVE (TOP RIGHT FRONT OF ENGINE) FUEL TANK PRESSURE SENSOR (IN FUEL TANK) FUSE BLOCK GRY DK GRN WIRE GRY WIRE HOT IN RUN HOT IN RUN, START LT BLU WIRE LT BLU/WHT WIRE LT GRN GRY WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK WIRE PNK/BLK WIRE PPL PPL 5 6 PPL PNK PNK 16 17 18 WIRE PPL PNK PNK 25 26 27 WIRE PPL/WHT WIRE RED WIRE RED/BLK WIRE REV STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) STOP LPS FUSE TAN WIRE TAN/BLK WIRE TCC PWM SOL TCC SOL TFT SENSOR VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VSS ADAPTER WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SOL 2 3 4 PPL 2-3 SOL 28 29 30 PNK WIRE 3-2 SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLU WIRE BODY JUNCTION BLOCK BRAKE FUSE BRN WIRE BRN/RED WIRE CAMSHAFT POSITION SENSOR (TOP CENTER REAR OF ENGINE) CLUTCH PEDAL POSITION SWITCH (TOP OF PEDAL BRACKET) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANISTER PURGE VALVE (TOP RIGHT REAR OF ENGINE) EVAP CANISTER VENT VALVE (LEFT FRONT SIDE OF FUEL TANK) EXHAUST GAS RECIRCULATION VALVE (TOP RIGHT FRONT OF ENGINE) FUEL TANK PRESSURE SENSOR (IN FUEL TANK) FUSE BLOCK GRY DK GRN WIRE GRY WIRE HOT IN RUN HOT IN RUN, START LT BLU WIRE LT BLU/WHT WIRE LT GRN GRY WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK WIRE PNK/BLK WIRE PPL PPL 5 6 PPL PNK PNK 16 17 18 WIRE PPL PNK PNK 25 26 27 WIRE PPL/WHT WIRE RED WIRE RED/BLK WIRE REV STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) STOP LPS FUSE TAN WIRE TAN/BLK WIRE TCC PWM SOL TCC SOL TFT SENSOR VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VSS ADAPTER WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SOL 2 3 4 PPL 2-3 SOL 28 29 30 PNK WIRE A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLU WIRE BODY WIRING HARNESS JUNCTION BLOCK BRAKE FUSE BRN WIRE BRN/RED WIRE CAMSHAFT POSITION SENSOR (TOP CENTER REAR OF ENGINE) CLUTCH PEDAL POSITION SWITCH (TOP OF PEDAL BRACKET) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANISTER PURGE VALVE (TOP RIGHT REAR OF ENGINE) EVAP CANISTER VENT VALVE (LEFT FRONT SIDE OF FUEL TANK) EXHAUST GAS RECIRCULATION VALVE (TOP RIGHT FRONT OF ENGINE) FUEL TANK PRESSURE SENSOR (IN FUEL TANK) FUSE BLOCK GRY DK GRN WIRE GRY WIRE HOT IN RUN HOT IN RUN, START LT BLU WIRE LT BLU/WHT WIRE LT GRN GRY WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK 3 4 5 WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK 5 6 WIRE PPL PNK PNK 17 18 19 WIRE PPL PNK PNK 24 25 26 WIRE PPL/WHT WIRE RED WIRE RED/BLK WIRE REV STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) STOP LPS FUSE TAN WIRE TCC PWM SOL TFT SENSOR VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VSS ADAPTER WHT WIRE YEL WIRE YEL/BLK WIRE