Wiring diagram engine performance 4.3l (vin w)s for Chevrolet Blazer S15 (1994-1998)

18 19 20 21 PNK WIRE A/C COMP RLY CTRL EGR PINTLE POSIT INPUT A/C COMPRESSOR CLUTCH RELAY (CENTER REAR OF ENGINE COMPARTMENT) A/T M/T ANTI-LOCK BRAKE SYSTEM (LEFT FRONT WHEEL SPEED SENSOR) ANTI-LOCK BRAKES SYSTEM (RIGHT FRONT WHEEL SPEED SENSOR) BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CAM POSIT SENS RTN RIGHT FRONT SENS LOW TCC ON/OFF SOL. CTRL CAMSHAFT POSITION SENSOR (LOCATED WITHIN HIGH VOLTAGE SWITCH) (IN DISTRIBUTOR) COIL CRANKSHAFT POSITION SENSOR (LOWER RIGHT FRONT OF ENGINE) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP EMISS PURGE CTRL 3-2 CTRL SOL. CTRL EVAPORATIVE EMISSIONS CANISTER VENT VALVE SOLENOID (IF EQUIPPED) GRN WIRE GRY WIRE HALL EFFECT SENSOR IDLE AIR CONTROL MOTOR (TOP LEFT SIDE OF ENGINE) IDLE AIR CTRL (IAC) B HI IDLE AIR CTRL (IAC) A HI INJ NO.2 CTRL INJ NO.3 CTRL KNOCK SENSOR (TOP REAR OF ENGINE) LEFT OXYGEN SENSOR (IN LEFT EXHAUST PIPE) LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT LT LT LT PPL NCA WIRE OR 22 23 24 OR PUMP DRIVER KNOCK SENS SIG PNK PNK PNK 1 2 3 4 WIRE PNK WIRE PNK/BLK WIRE PPL PPL CRANK POSIT SENS GROUND VSS (HI) VSS (LO) CRANK POSIT SENS SIGNAL PPL PNK WIRE PPL PPL PPL/WHT WIRE PRE-CONVERTER OXYGEN SENSOR (FORWARD OF CATALYTIC CONVERTER) RIGHT FRONT SENS HIGH RIGHT OXYGEN SENSOR (RIGHT REAR OF ENGINE IN EXHAUST PIPE) SENSOR GROUND TAN WIRE TAN/BLK WIRE TAN/PPL WIRE TAN/WHT WIRE VEHICLE CONTROL MODULE (VCM) (RIGHT SIDE OF ENGINE COMPARTMENT) VEHICLE SPEED SENSOR (VSS) (REAR OF TRANSFER CASE) WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOL 18 19 20 21 PNK WIRE 2-3 SHIFT SOL 3-2 CONTROL SOL. 4 5 6 PNK WIRE AUTOMATIC TRANSMISSION BLK WIRE BLU WIRE BRN WIRE DK BLU WIRE DK GRN WIRE ECM/IGN FUSE 10 ENG FUSE 5 FUEL INJ. NO.1 FUEL INJ. NO.2 FUEL INJ. NO.3 FUEL INJ. NO.4 FUEL INJ. NO.5 FUEL INJ. NO.6 GRY WIRE HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK LINEAR EXHAUST GAS RECIRCULATION (EGR) SOLENOID VALVE (TOP FRONT OF ENGINE) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT PNK WIRE NCA WIRE OR 16 17 PNK 10 11 WIRE PNK 12 13 14 15 WIRE PNK 18 19 WIRE PNK PNK PNK 1 2 3 4 WIRE PNK PNK PNK 1 2 3 WIRE PNK WIRE PNK/BLK WIRE POST-CONVERTER OXYGEN SENSOR (REAR OF CATALYTIC CONVERTER) PPL PNK WIRE PPL/WHT WIRE PRESSURE CONTROL SOLENOID (PCS) RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC ON/OFF SOL. TCC PWM SOL TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR (INTERNAL) TRANSMISSION RANGE (TR) PRESSURE SWITCH ASSEMBLY WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 PNK PNK WIRE 4 5 6 PNK WIRE A/T ONLY BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BATT FUSE 9 FOUR-WHEEL DRIVE INDICATOR ASSEMBLY (CENTER OF FLOOR CONSOLE) FRONT AXLE SWITCH FUEL PUMP OIL PRESSURE SWITCH (TOP REAR OF ENGINE NEAR DISTRIBUTOR) FUEL PUMP PRIME CONNECTOR FUEL PUMP RELAY FUEL PUMP/ SENDER (TOP OF FUEL TANK) GAUGE INPUT OIL PRESSURE GAUGES FUSE 4 GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK INPUT FUEL GAUGE INPUT SPEEDOMETER INPUT TACHOMETER INSIDE LEFT FRAME RAIL INSTRUMENT CLUSTER LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MALFUNCTION INDICATOR (MIL) "SERVICE ENGINE SOON" LAMP MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR (TOP CENTER OF ENGINE) MAP MASS AIRFLOW SENSOR (LEFT FRONT OF ENGINE ON AIR CLEANER HOUSING) NCA WIRE OR 16 17 ORG/ WIRE PNK 10 11 WIRE PNK 12 13 14 15 WIRE PNK 18 19 WIRE PNK PNK PNK 1 2 3 WIRE PNK PNK WIRE PNK WIRE PPL RED WIRE RED/BLK WIRE REF LO REF LO REF RELAY CENTER SHIFT "UPSHIFT INDICATOR" LAMP TAN WIRE TAN/BLK WIRE TEMP THROTTLE POSITION (TP) SENSOR (TOP LEFT SIDE OF ENGINE) TRANS FUSE 24 TRANSFER CASE CONTROL MODULE (BEHIND CENTER OF I/P) W/ELEC. SHIFT CTRL W/O ELEC. SHIFT CTRL WHT WIRE YEL WIRE

1 2 3 4 5 6 7 PNK PNK WIRE 1734 1731 RIGHT FNT PWM SOL CTRL LEFT FNT PWM SOL CTRL ABS VOLTAGE PPL PNK WIRE 21 22 23 24 25 26 27 28 29 30 31 32 B+ RANGE SIGNAL "B" RANGE SIGNAL "A" 441 30 IGNITION FEED FUEL LEVEL INPUT UPSHIFT IND LP CTRL PPL A/C HIGH PRESSURE CUT/OUT SWITCH (REAR OF A/C COMPRESSOR) A/C ON INPUT A/T ONLY ABS ENABLE RELAY RIGHT FRONT RIGHT FRONT ABS PUMP FEED OUTPUT ABS RELAY PUMP DRIVE OUTPUT LEFT FRONT IGN FEED REAR ANTI-LOCK BRAKES SYSTEM (BRAKE PRESSURE WARNING SWITCH) PPL BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE FUSE 12 BRAKE PRESSURE MODULATOR VALVE (LEFT REAR OF ENGINE COMPARTMENT) BRAVADA ONLY BRN WIRE BRN/WHT WIRE CLUTCH PEDAL POSITION SWITCH (ON CLUTCH PEDAL SUPPORT BRACKET) CRUISE CONTROL MODULE (LEFT REAR OF ENGINE COMPARTMENT, ON COWL) CRUISE CTRL ENG SIG CYLINDER NO.2 CYLINDER NO.1 CYLINDER NO.5 CYLINDER NO.3 CYLINDER NO.4 CYLINDER NO.6 DISTRIBUTOR (TOP REAR OF ENGINE) DISTRIBUTOR IGNITION CONTROL MODULE (TOP RIGHT SIDE OF ENGINE) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DK LT DRIVER INFORMATION DISPLAY CENTER (FRONT OF OVERHEAD CONSOLE) EST OUTPUT SIG GRN WIRE GRY WIRE GRY/BLK WIRE HIGH VOLTAGE COIL WIRE HOT IN RUN I/P FUSE BLOCK IGNITION COIL (TOP RIGHT SIDE OF ENGINE) INSTRUMENT CLUSTER SYSTEM (ANTI-LOCK IND., DIODE MODULE, BRAKE IND.) ISOLATION SOLENOID LEFT FRONT REAR LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE OR 18 19 20 OR LT LT OR OR 1722 452 ORG/ WIRE PNK IGNITION FEED IGN TIMING SIG. TACH. SIG. GROUND WIRE PNK IGNITION FEED WIRE PNK PPL WIRE PNK WIRE PPL PPL 420 OR PPL A/T M/T PPL OR OR PPL PPL PRESS CTRL SOL LO SYSTEM GROUND SYSTEM GROUND SENSOR GROUND PRESS CTRL SOL. HI PUMP DRIVER FEEDBACK PWM SOLENOID RANGE SIGNAL "C" REAR PWM SOL CTRL RED WIRE RED/BLK WIRE SPARK PLUGS TAN/BLK WIRE TAN/WHT WIRE UTILITY ONLY UTILITY BRAVADA VEHICLE CONTROL MODULE (VCM) (RIGHT SIDE OF ENGINE COMPARTMENT) W/ELEC. SHIFT CTRL W/O ELEC. SHIFT CTRL WHT WIRE WHT/BLK WIRE