Chevrolet Corvette C4 (1984-1998) powertrain control module (left rear of engine compt, above battery) Wiring diagrams

BLK WIRE BLK/WHT WIRE BRN WIRE CENTRAL CONTROL MODULE (BEHIND CENTER OF I/P) CHIME OUT CONTROL CHIME 1 INPUT CHIME 2 INPUT CLUSTER FUSE 27 DK BLU/WHT WIRE EXTERIOR LIGHTS SYSTEM PPL FASTEN BELTS INDIC CTRL GRN WIRE GRY/BLK WIRE HEAD HEAD- LAMP SWITCH HEAD/PARK SWITCH IN HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK INSTRUMENT CLUSTER KEY-IN IGNITION IN LCD FUSE 38 LEFT DOOR AJAR KEY-IN IGNITION SWITCH LEFT DOOR IN LT GRN WIRE NCA WIRE OFF PARK ORG/ WIRE PNK WIRE POWERTRAIN CONTROL MODULE (LEFT REAR OF ENGINE COMPT, ABOVE BATTERY) PPL REMOTE KEYLESS ENTRY SYSTEM RIGHT DOOR AJAR SEAT BELT SWITCH SEAT BELT SWITCH IN RIGHT DOOR IN SEAT BELTS INDIC SUPPLEMENTAL RESTRAINT SYSTEM SWITCH TONE GENERATOR (BEHIND CENTER OF I/P) POWER TURN FLASH IN TURN FLASHER TURN FUSE 24 VEHICLE SPEED OUTPUT VSS IN WHT WIRE YEL WIRE

1-2 SHIFT SOLENOID 1-4 UPSHIFT LP CTRL 2-3 SHIFT SOLENOID 3-2 SHIFT SOLENOID A/C CLUTCH CTRL A/C COMPRESSOR RELAY A/C PRESS SENSOR SIG A/C REFRIGERANT PRESSURE SENSOR A/T A/T FLUID TEMP SENSOR PPL AUTO TRANS FUSE 15 BACK-UP FUSE 28 AUTOMATIC TRANSMISSION BANK 1 KNOCK SENSOR BANK 2 KNOCK SENSOR BLK PNK/ WIRE BLK WIRE BLK/WHT WIRE BLOCKOUT RELAY (RIGHT SIDE OF ENGINE COMPARTMENT, ON INNER WHEELHOUSE) BLU WIRE BRN WIRE BRN/WHT WIRE CLUSTER FUSE 27 COIL FUSE 25 COIL WIRE DK PNK/ DISTRIBUTOR CONN 4 DATA LINK CONNECTOR (DLC) (BELOW LEFT SIDE OF I/P) DK BLU WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) ECM FUSE 1 ENG 1 FUSE 30 ENG OIL TEMP SENSOR SIG ENGINE OIL PRESSURE/ FUEL PUMP SWITCH (CLOSED W/ENGINE RUNNING) ENGINE OIL TEMPERATURE (EOT) SENSOR (LEFT REAR OF ENGINE, ABOVE OIL FILTER) EVAP CANISTER PRG CTRL FUEL PUMP FUEL PUMP FUSE 2 FUEL PUMP MODULE FUEL PUMP RELAY (BELOW RIGHT SIDE OF I/P) GEAR BLOCKOUT SOLENOID GRN WIRE GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST, START I/P FUSE BLOCK I/P FUSE BLOCK FP 1 FUSE 14 IC SIG IGNITION COIL (RIGHT FRONT OF ENGINE) IGNITION COIL MODULE (RIGHT FRONT OF ENGINE) PRIMARY COIL DRIVER IGN LEFT KNOCK SENSOR (KS) (BANK 1) (BOTTOM LEFT SIDE OF ENGINE) LOW TIRE PRESSURE WARNING MODULE INSTRUMENT CLUSTER (ONE - TO-FOUR INDICATOR) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT LT M/T M/T ONLY MALFUNCTION INDICATOR (SERVICE ENGINE SOON) MIL CTRL NCA WIRE OR (LEFT REAR OF ENGINE NEAR OIL FILTER) ORG/ WIRE ORG/BLK WIRE OUTPUT/FIELD SERV ENBL PCM GROUND PNK WIRE POWERTRAIN CONTROL MODULE (LEFT REAR OF ENGINE COMPT, ABOVE BATTERY) PPL PRESSURE CTRL. SOLENOID A/T FLUID PRESS SW RED WIRE RED/BLK WIRE REV SW PNK PNK LO SW WIRE RIGHT KNOCK SENSOR (KS) (BANK 2) (BOTTOM RIGHT SIDE OF ENGINE) SERIAL DATA (UART) SW SW TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC PWM SOLENOID CTRL PPL SERIAL DATA (CLASS 2) TCC SOLENOID TRANS FLUID TEMP SIG TRANS PRESS CTRL LO PNK IGNITION WIRE TRANS TCC CTRL TRANSMISSION RANGE (TR) SWITCH UNDER- HOOD FUSE BLOCK #1 WHT BRN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOLENOID 1-4 UPSHIFT LP CTRL 2-3 SHIFT SOLENOID 3-2 SHIFT SOLENOID A/C CLUTCH CTRL A/C COMPRESSOR RELAY A/C PRESS SENSOR SIG A/C REFRIGERANT PRESSURE SENSOR A/T A/T FLUID TEMP SENSOR PPL AUTO TRANS FUSE 15 BACK-UP FUSE 28 AUTOMATIC TRANSMISSION BANK 1 KNOCK SENSOR BANK 2 KNOCK SENSOR BLK PNK/ WIRE BLK WIRE BLK/WHT WIRE BLOCKOUT RELAY (RIGHT SIDE OF ENGINE COMPARTMENT, ON INNER WHEELHOUSE) BLU WIRE BRN WIRE BRN/WHT WIRE CLUSTER FUSE 27 COIL FUSE 25 COIL WIRE DK PNK/ DISTRIBUTOR CONN 4 DATA LINK CONNECTOR (DLC) (BELOW LEFT SIDE OF I/P) DK BLU WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) ECM FUSE 1 ENG 1 FUSE 30 ENG OIL TEMP SENSOR SIG ENGINE OIL PRESSURE/ FUEL PUMP SWITCH (CLOSED W/ENGINE RUNNING) ENGINE OIL TEMPERATURE (EOT) SENSOR (LEFT REAR OF ENGINE, ABOVE OIL FILTER) EVAP CANISTER PRG CTRL FUEL PUMP FUEL PUMP FUSE 2 FUEL PUMP MODULE FUEL PUMP RELAY (BELOW RIGHT SIDE OF I/P) GEAR BLOCKOUT SOLENOID GRN WIRE GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST, START I/P FUSE BLOCK I/P FUSE BLOCK FP 1 FUSE 14 IC SIG IGNITION COIL (RIGHT FRONT OF ENGINE) IGNITION COIL MODULE (RIGHT FRONT OF ENGINE) PRIMARY COIL DRIVER IGN LEFT KNOCK SENSOR (KS) (BANK 1) (BOTTOM LEFT SIDE OF ENGINE) LOW TIRE PRESSURE WARNING MODULE INSTRUMENT CLUSTER (ONE - TO-FOUR INDICATOR) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT LT M/T M/T ONLY MALFUNCTION INDICATOR (SERVICE ENGINE SOON) MIL CTRL NCA WIRE OR (LEFT REAR OF ENGINE NEAR OIL FILTER) ORG/ WIRE ORG/BLK WIRE OUTPUT/FIELD SERV ENBL PCM GROUND PNK WIRE POWERTRAIN CONTROL MODULE (LEFT REAR OF ENGINE COMPT, ABOVE BATTERY) PPL PRESSURE CTRL. SOLENOID A/T FLUID PRESS SW RED WIRE RED/BLK WIRE REV SW PNK PNK LO SW WIRE RIGHT KNOCK SENSOR (KS) (BANK 2) (BOTTOM RIGHT SIDE OF ENGINE) SERIAL DATA (UART) SW SW TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC PWM SOLENOID CTRL PPL SERIAL DATA (CLASS 2) TCC SOLENOID TRANS FLUID TEMP SIG TRANS PRESS CTRL LO PNK IGNITION WIRE TRANS TCC CTRL TRANSMISSION RANGE (TR) SWITCH UNDER- HOOD FUSE BLOCK #1 WHT BRN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE