GMC Sierra 2500 (2000-2004) pnk/blk Wiring diagrams

1056 1037 INTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM 2353 1382 4040 1732 230 2240 INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM 244 255 1391 193 (BASE) (UPPER LEVEL) 710 308 COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SYSTEM 812 1140 1969 1080 1353 ANTI-THEFT SYSTEM AMBIENT LIGHT SENSOR AMBIENT LIGHT SENSOR (TOP CENTER OF DASH) ANTI-LOCK BRAKES SYSTEM INTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM ANTI-THEFT SYSTEM HEADLIGHTS SYSTEM HORNS SYSTEM ANTI-THEFT SYSTEM SOUND SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN/WHT WIRE CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA PARK LAMP SW ON SIG DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DEFOGGER SYSTEM DOOR LOCKS SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM FUSE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES TBC BATT FUSE I/P RELAY BLOCK INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM LEFT I/P FUSE BLOCK LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PASS DOOR LOCK SW LOCK CTRL DRIVER DOOR UNLOCK RLY CTRL REAR DEFOG RLY CTRL PASS DOOR LOCK SW UNLOCK CTRL HEADLAMP LOW BEAM RELAY CTRL FOG LIGHT RELAY CTRL PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL INTERIOR LAMP DEFEAT SW SIG PPL/WHT WIRE RED WIRE RED/WHT WIRE SOLAR SENSOR SOLAR SENSOR SOUND SYSTEM STEERING CTRL SUPPLY VOLT SUNLOAD SENSOR TAN/WHT WIRE TOW/HAUL SW SIG TOW/HAUL SWITCH UNDERHOOD FUSE BLOCK UPPER LEVEL W/ AUTOMATIC A/C W/ MANUAL A/C WHT WIRE YEL WIRE

3-2 SS CTRL REF LOW A/C SYSTEM BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE BODY CONTROL MODULE (BELOW STEERING COLUMN) BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (BELOW STEERING COLUMN) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE OIL LEVEL SWITCH (RIGHT SIDE OF OIL PAN) FUSE FUSE FUSE GRY WIRE HOT AT ALL TIMES HOT IN ACCY, RUN, START HOT IN RUN, START INJ 1 CTRL INJ 6 CTRL AFO ENABLE RLY CTRL GND KS SIGNAL KS SIGNAL CKP SIG LEFT I/P FUSE BLOCK IGN 0 FUSE LEV SW SIG LPL CTRL INJ 7 CTRL INJ 4 CTRL LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MOD STATUS B+ CLS 2 DATA CLS 2 DATA OIL LEV SW SIG SELECT SIG PRND B SIG CMP SIG ECT SIG IGN INJ 5 CTRL INJ 8 CTRL ORG/ WIRE ORG/BLK WIRE PCMB FUSE PNK 1 2 3 4 5 WIRE PNK PNK 6 7 8 9 10 WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL PPL PPL/WHT WIRE PRND A SIG BRK SW SIG PRND P SIG PPL RANGE B RANGE C IGN B+ REF LOW RED WIRE RED/BLK WIRE REF LOW REF LOW (A/T) REF LOW REF LOW GND SERIAL DATA (-) SERIAL DATA (+) STARTING/ CHARGING SYSTEM TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

4 5 PNK WIRE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COOLANT LEVEL SWITCH (IN COOLANT RESERVOIR) DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE SENSOR (FRONT OF LEFT CYLINDER HEAD) FUEL PUMP RELAY FUEL PUMP, SENDER ASSEMBLY (PRIMARY) (IN FUEL TANK) GRY WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 1) (LEFT EXH PIPE, BEFORE CONVERTER) HEATED OXYGEN SENSOR (BANK 1 SENSOR 2) (LEFT EXH PIPE, AFTER CONVERTER) HEATED OXYGEN SENSOR (BANK 2 SENSOR 1) (RIGHT EXH PIPE, BEFORE CONVERTER) HEATED OXYGEN SENSOR (BANK 2 SENSOR 2) (RIGHT EXH PIPE, AFTER CONVERTER) HOT AT ALL TIMES KNOCK SENSOR (UNDER INTAKE MANIFOLD) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PCM B FUSE FUSE PNK 1 2 3 4 5 WIRE PNK PNK 6 7 8 9 10 WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK WHT WIRE WHT/ BLK WIRE YEL WIRE YEL/BLK WIRE

4 5 PNK WIRE AF DIODE 1 AF DIODE 2 AF FUEL RAIL PRESSURE SENSOR BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE FUEL GAUGE SELECT SWITCH FUEL RAIL TEMPERATURE (FRT) SENSOR FUEL TANK PRESSURE (FTP) SENSOR FUEL TANK TEMPERATURE (FTT) SENSOR GASOLINE FUEL INJECTOR GRY WIRE HIGH PRESSURE LOCK-OFF SOLENOID LOW PRESSURE LOCK-OFF SOLENOID LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 50 51 52 53 WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

AF INJECTOR BATTERY BLK LT BLU/ WIRE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/ WHT WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENABLE EVEN FUSIBLE LINK GRY WIRE HOT IN RUN OR START IGN INJ 1 INJ 2 INJ 3 INJ 4 INJ 5 INJ 6 INJ 7 INJ 8 INLINE AF FUSE LT BLU/BLK WIRE LT GRN WIRE LT GRN/ BLK WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE OUT PCM 1/AFS FUSE PNK 50 51 52 53 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL PNK PNK WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE REF SIG STATUS UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE COOLANT LEVEL SWITCH (IN COOLANT RESERVOIR) DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ECM-B FUSE ENGINE COOLANT TEMPERATURE SENSOR (LEFT FRONT OF CYLINDER HEAD) ENGINE OIL LEVEL SWITCH (RIGHT SIDE OF OIL PAN) FUEL PUMP RELAY GRY WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 1) (LEFT EXH PIPE, BEFORE CONVERTER) HEATED OXYGEN SENSOR (BANK 2 SENSOR 2) (RIGHT EXH PIPE, AFTER CONVERTER) HOT AT ALL TIMES KNOCK SENSOR (UNDER INTAKE MANIFOLD) LT BLU WIRE LT GRN WIRE NCA WIRE ORG/BLK WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK PNK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL PNK WIRE PPL PPL PPL/WHT WIRE PRIMARY FUEL PUMP, SENDER ASSEMBLY (IN FUEL TANK) RED WIRE SECONDARY FUEL PUMP RELAY SECONDARY FUEL PUMP, SENDER ASSEMBLY (IN FUEL TANK) TAN WIRE TAN/WHT WIRE UNDER- HOOD FUSE BLOCK WHT WIRE WHT/ BLK WIRE YEL WIRE

1-2 SOL 2-3 SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLU WIRE BODY RELAY BLOCK BRN WIRE BRN/RED WIRE CAMSHAFT POSITION SENSOR (TOP CENTER REAR OF ENGINE) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANISTER PURGE SOLENOID (TOP RIGHT REAR OF ENGINE) EVAP CANISTER VENT SOLENOID (RIGHT FRONT SIDE OF FUEL TANK) EXHAUST GAS RECIRCULATION VALVE (TOP RIGHT FRONT OF ENGINE) FUEL TANK PRESSURE SENSOR (IN FUEL TANK) GRY DK GRN WIRE GRY WIRE HOT IN RUN LEFT I/P FUSE BLOCK BRAKE FUSE HOT IN RUN, START LT BLU WIRE LT BLU/WHT WIRE LT GRN GRY WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL PNK 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 UNDER- HOOD FUSE BLOCK VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR ADAPTER WHT WIRE YEL WIRE YEL/BLK WIRE

ANTI-LOCK BRAKE SYSTEM B+ CLS 2 DATA CLS 2 DATA SENS GND REF LOW BLK WIRE BLK/WHT WIRE BODY CONTROL THEFT DETERRENT MODULE (BELOW CONTROL STEERING MODULE COLUMN) BRN WIRE BRN/RED WIRE COOLANT LEV DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ECMB FUSE ELECTRONIC SUSPENSION SYSTEM FUSE GND GND GRY WIRE HOT AT ALL TIMES HOT IN RUN, START HOT IN RUN, START LEFT I/P FUSE BLOCK IGN 0 FUSE INJA FUSE FUSE INJB FUSE INJECTORS KS SIGNAL KS SIGNAL CKP REQ TORQUE SERIAL DATA SERIAL DATA LIFT/DIVE SIG LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE OIL LEV ORG/ WIRE ORG/BLK WIRE PNK PNK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) PPL PPL PPL PPL SENS GND PPL/WHT WIRE PRND A BRK SW PRND P PPL PRND B CMP ECT SIG IGN RANGE B RANGE C IGN B+ REF LOW RED WIRE RED/BLK WIRE SENS GND SENS GND EGR INPUT SENS RTN TAN WIRE UNDER- HOOD FUSE BLOCK W/ REMOTE FUNCTION ACTUATOR W/O REMOTE FUNCTION ACTUATOR WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE COOLANT LEVEL SWITCH (IN COOLANT RESERVOIR) DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ECM-B FUSE ENGINE COOLANT TEMPERATURE SENSOR (LEFT FRONT OF CYLINDER HEAD) ENGINE OIL LEVEL SWITCH (RIGHT SIDE OF OIL PAN) FUEL PUMP RELAY GRY WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 1) (LEFT EXH PIPE, BEFORE CONVERTER) HEATED OXYGEN SENSOR (BANK 2 SENSOR 2) (RIGHT EXH PIPE, AFTER CONVERTER) HOT AT ALL TIMES KNOCK SENSOR (UNDER INTAKE MANIFOLD) LT BLU WIRE LT GRN WIRE NCA WIRE ORG/BLK WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK PNK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL PNK WIRE PPL PPL PPL/WHT WIRE PRIMARY FUEL PUMP, SENDER ASSEMBLY (IN FUEL TANK) RED WIRE SECONDARY FUEL PUMP RELAY SECONDARY FUEL PUMP, SENDER ASSEMBLY (IN FUEL TANK) TAN WIRE UNDER- HOOD FUSE BLOCK WHT WIRE WHT/ BLK WIRE YEL WIRE

1-2 SOL 2-3 SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLU WIRE BODY RELAY BLOCK BRAKE FUSE BRN WIRE BRN/RED WIRE CAMSHAFT POSITION SENSOR (TOP CENTER REAR OF ENGINE) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANISTER PURGE SOLENOID (TOP RIGHT REAR OF ENGINE) EVAP CANISTER VENT SOLENOID (RIGHT FRONT SIDE OF FUEL TANK) EXHAUST GAS RECIRCULATION VALVE (TOP RIGHT FRONT OF ENGINE) FUEL TANK PRESSURE SENSOR (IN FUEL TANK) GRY DK GRN WIRE GRY WIRE HOT IN RUN HOT IN RUN, START LEFT I/P FUSE BLOCK LT BLU WIRE LT BLU/WHT WIRE LT GRN GRY WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK WIRE PNK/BLK WIRE PPL PPL PNK PNK WIRE PPL PNK 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 UNDER- HOOD FUSE BLOCK VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR ADAPTER WHT WIRE YEL WIRE YEL/BLK WIRE