GMC Sierra 1500 HD (2001-2006) body junction block Wiring diagrams

54 (54 OR 394) AMBIENT LIGHT SENSOR (TOP CENTER OF DASH) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY JUNCTION BLOCK BODY WIRING HARNESS JUNCTION BLOCK BRN WIRE CARGO LP CTSY LP FTP SW DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR SW KEY CYL SW LF DR SW FOG LP SW INT LP SW DRL RLY COIL CLASS 2 DATA GROUND IGN 1 FEED FOG LP RLY LAMP RELAY FUSE BLOCK GRY WIRE GRY/BLK WIRE HEADLAMP RLY LED DIM VSS WHEEL POS PASSLOCK SIG HEADLIGHTS SYSTEM COMPUTER DATA LINES SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM INTERIOR LIGHTS SYSTEM HOT AT ALL TIMES TBC FUSE HOT IN RUN CRUISE FUSE HOT IN RUN, START IGN 1 FUSE IGN 3 INPUT PRK BK SW SEAT BELT SW TOW/HAUL SW IGNITION KEY ALARM SWITCH INST PANEL LP PHOTOCELL INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM KEY REMINDER LIFTGATE AJAR DOOR LATCH INADV PWR LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT TURN INPUT RT TURN INPUT NCA WIRE ORG (ORG OR LT GRN/BLK) WIRE ORG/ WIRE ORG/BLK WIRE PARK BRAKE SWITCH PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL HEADLP DIM PK LPS FEED PPL/WHT WIRE REAR PARKING ASSIST CHIME MODULE RED/WHT WIRE RFA LINK SERIAL DATA SENSOR RTN CTSY LP RLY DR UNLK RLY PK LP RLY TAN WIRE TOW/HAUL SWITCH UNDERHOOD JUNCTION BLOCK WARNING SYSTEM WARNINGS SYSTEM WARNINGS SYSTEM INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM WHT WIRE YEL WIRE

BLK/WHT WIRE BODY JUNCTION BLOCK BODY RELAY BLOCK BODY RELAY BLOCK (UNDER LEFT SIDE) CLASS 2 DATA LAMP VOLTAGE BATTERY VSS RAP VOLT DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER GROUND GRY WIRE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) RADIO FUSE HOT IN RUN AND START HOT IN RUN, START OR W/ RAP ENERGIZED IGN 1 FUSE INSTRUMENT PANEL CLUSTER INTERIOR LIGHTS SYSTEM 8 340 LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) ORG/ WIRE PNK IGN 1 VOLT WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT OF ENGINE COMPT) PPL DATA LINK CONNECTOR (BELOW STEERING COLUMN) RDO 1 FUSE UNDERHOOD JUNCTION BLOCK VSS VSS OUT WHT WIRE YEL WIRE

BASE BATTERY SERIAL DATA GROUND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE BODY JUNCTION BLOCK BODY WIRING HARNESS JUNCTION BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) BRN WIRE CGO DR JMB SW IN CRUISE FUSE DK BLU WIRE DK GRN WIRE DOOR JAMB SW IN EXTERIOR LIGHTS FUSE BLOCK GRY WIRE HDLMP RLY CNTRL PARK LIGHTS IN KEY IN IGN HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES UNDERHOOD JUNCTION BLOCK TBC FUSE HOT IN RUN HOT IN RUN OR START HOT WITH PARK LIGHTS ON IGN 1 FUSE INSTRUMENT CLUSTER INT PRK FUSE KEY-IN IGNITION SWITCH LEFT CARGO DOOR AJAR SWITCH LEFT DOOR CONTACTOR LEFT LIFTGATE AJAR SWITCH LEFT MINI WEDGE SWITCH LEFT POWER WINDOW/ DOOR LOCK SWITCH LIFTGLASS AJAR SWITCH LOGIC LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PNK IGNITION 1 IGNITION 3 SEAT BELT INPUT WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT FRONT OF ENGINE COMPARTMENT) REAR WINDOW WIPER MODULE RIGHT CARGO DOOR AJAR SWITCH RIGHT DOOR CONTACTOR RIGHT LIFTGATE AJAR SWITCH 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 JUNCTION BLOCK UTILITY W/CARGO DOORS UTILITY W/O CARGO DOORS WHT WIRE

1-2 SOL 2 3 4 PPL 2-3 SOL 25 26 27 PNK PNK WIRE 28 29 30 PNK WIRE 3-2 SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLK/WHT WIRE BLU WIRE BODY JUNCTION BLOCK BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (IN DISTRIBUTOR) CLUTCH PEDAL POSITION SWITCH (TOP OF PEDAL BRACKET) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANISTER PURGE SOLENOID (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 FUSE BLOCK BRAKE FUSE GRY DK GRN WIRE GRY WIRE HOT IN RUN, START IAT SENSOR IGN LEFT I/P FUSE BLOCK 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) MASS AIRFLOW SENSOR (IN AIR INTAKE DUCT) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK PNK 9 10 11 12 13 14 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL 5 6 PPL/WHT WIRE RED WIRE RED/BLK WIRE REV SIGNAL STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TCC PWM SOL TCC SOL TFT SENSOR UNDER- HOOD JUNCTION BLOCK VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SOL 2 3 4 PPL 2-3 SOL 25 26 27 PNK PNK WIRE 3-2 SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLK/WHT WIRE BLU WIRE BODY JUNCTION BLOCK BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (IN DISTRIBUTOR) CLUTCH PEDAL POSITION SWITCH (TOP OF PEDAL BRACKET) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANISTER PURGE SOLENOID (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 FUSE BLOCK BRAKE FUSE GRY DK GRN WIRE GRY WIRE HOT IN RUN, START IAT SENSOR IGN LEFT I/P FUSE BLOCK LT BLU WIRE LT BLU/ WHT WIRE LT BLU/WHT WIRE LT GRN GRY WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) MASS AIRFLOW SENSOR (IN AIR INTAKE DUCT) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK PNK 9 10 11 12 13 14 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL 5 6 PPL/WHT WIRE RED WIRE RED/ BLK WIRE RED/BLK WIRE REV SIGNAL STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TAN/BLK WIRE TCC PWM SOL TCC SOL TFT SENSOR UNDER- HOOD JUNCTION BLOCK VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) WHT WIRE YEL WIRE YEL/BLK WIRE