Chevrolet Corvette C4 (1984-1998) ecm fuse 1 Wiring diagrams

1-2 SHIFT SOL 1-2 SHIFT SOLENOID 2-3 SHIFT SOL 2-3 SHIFT SOLENOID 3-2 CTRL SOLENOID 3-2 DOWNSHIFT SOL AUTO TRANS FUSE 15 AUTOMATIC TRANSMISSION BATTERY IN BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE SWITCH ASSEMBLY (ON BRAKE PEDAL BRACKET) BRN WIRE BRN/WHT WIRE CLUSTER FUSE 27 CONN B DK BLU WIRE DRIVER INFORMATION CENTER E.C.M. FUSE 33 ECM FUSE 1 ECT SENS INPUT PNK RANGE SIGNAL "A" WIRE ENG 1 FUSE 30 ENGINE COOLANT TEMP SENSOR (FRONT OF ENGINE, ON WATER PUMP) GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK IGNITION IN LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP MIL CONTROL ORG/BLK WIRE PARK/NEUTRAL IN PCM GROUND PCM GROUND CONN C PCM GROUND PPL VSS LO PCS HI PCS LO PNK IGNITION IN WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT REAR OF ENGINE COMPT, ABOVE BATTERY) PPL PPL BRAKE SWITCH INPUT PPL DATA LINK CONNECTOR (LEFT SIDE OF DASH) PRESS CTRL HI SOLENOID RANGE SIGNAL "B" RANGE SIGNAL "C" RED WIRE RED/BLK WIRE SENSOR RETURN SERIAL DATA CONN D TAN WIRE TAN/BLK WIRE TCC PWM SOL PPL CLASS II DATA TCC PWM SOLENOID TCC SOL TCC SOLENOID THROTTLE POSITION SENSOR (MOUNTED TO SIDE OF THROTTLE BODY) TP SENS INPUT TRANS FLUID TEMP SENSOR TRANS RANGE PRESS SW ASSY TRANS TEMP SIG IN TRANSMISSION RANGE SWITCH (BASE OF GEAR SELECTOR LEVER) UNDERHOOD FUSE BLOCK 1 VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VSS HI CONN A WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOL 1-2 SHIFT SOLENOID 2-3 SHIFT SOL 2-3 SHIFT SOLENOID 3-2 CTRL SOLENOID 3-2 DOWNSHIFT SOL AUTO TRANS FUSE 15 AUTOMATIC TRANSMISSION BATTERY IN BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE SWITCH ASSEMBLY (ON BRAKE PEDAL BRACKET) BRN WIRE BRN/WHT WIRE CLUSTER FUSE 27 CONN B DK BLU WIRE DRIVER INFORMATION CENTER E.C.M. FUSE 33 ECM FUSE 1 ECT SENS INPUT PNK RANGE SIGNAL "A" WIRE ENG 1 FUSE 30 ENGINE COOLANT TEMP SENSOR (FRONT OF ENGINE, ON WATER PUMP) GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK IGNITION IN LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP MIL CONTROL ORG/BLK WIRE PARK/NEUTRAL IN PCM GROUND PCM GROUND CONN C PCM GROUND PPL VSS LO PCS HI PCS LO PNK IGNITION IN WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT REAR OF ENGINE COMPT, ABOVE BATTERY) PPL PPL BRAKE SWITCH INPUT PPL DATA LINK CONNECTOR (LEFT SIDE OF DASH) PRESS CTRL HI SOLENOID RANGE SIGNAL "B" RANGE SIGNAL "C" RED WIRE RED/BLK WIRE SENSOR RETURN SERIAL DATA CONN D TAN WIRE TAN/BLK WIRE TCC PWM SOL PPL CLASS II DATA TCC PWM SOLENOID TCC SOL TCC SOLENOID THROTTLE POSITION SENSOR (MOUNTED TO SIDE OF THROTTLE BODY) TP SENS INPUT TRANS FLUID TEMP SENSOR TRANS RANGE PRESS SW ASSY TRANS TEMP SIG IN TRANSMISSION RANGE SWITCH (BASE OF GEAR SELECTOR LEVER) UNDERHOOD FUSE BLOCK 1 VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VSS HI CONN A WHT WIRE YEL WIRE YEL/BLK WIRE

A/C BLOWER A/C CLUTCH A/T ABS/ASR ECU ACCY ACCY PLUG AUTO A/C BATTERY BLK WIRE BLOWER MOTOR CONTROL MODULE BRAKE HYDRAULIC BREAKER BRN WIRE BULB TEST CCM 3 FUSE 16 CENTRAL CONTROL MODULE CLUTCH PEDAL POSITION SWITCH CRANK P/N CLUTCH DAB RELAY CONTROL DELAYED ACCESSORY BUS (DAB) RELAY (LEFT OF STEERING COLUMN) DK BLU WIRE ECM FUSE 1 ELECTRONIC BRAKE/TRACTION CONTROL MODULE ENGINE OIL PRESSURE SENSOR/FUEL PUMP SWITCH FUEL PUMP FUEL PUMP RELAY #1 FUSE 10 FUSE 18 FUSE 2 FUSE 20 FUSE 3 FUSE 4 FUSE 5 FUSE 8 FUSIBLE LINK GENERATOR HEATER- VENT-A/C CONTROL HEAD REAR WINDOW DEFOGGER RELAY I/P FUSE BLOCK IGN FUSE 4 IGNITION FUSE 6 IGNITION FUSE 7 IGNITION SWITCH LEFT FRONT HEATED OXYGEN SENSOR LEFT POWER WINDOW SWITCH LOCK LOCK OFF LOW BLOWER MOTOR RELAY HIGH BLOWER MOTOR RELAY M/T MAN AUTO MANUAL A/C NCA WIRE OFF ORG/ WIRE OXYGEN SEN PNK WIRE POWER WINDOW CIRCUIT POWERTRAIN CONTROL MODULE PPL RADIO RECEIVER REAL TIME DAMPING IN-LINE FUSE REAL TIME DAMPING MODULE REAR WINDOW DEFOGGER RELAY RED WIRE RIGHT FRONT HEATED OXYGEN SENSOR RIGHT REAR HEATED OXYGEN SENSOR LEFT REAR HEATED OXYGEN SENSOR RR DEFOG RUN WIRE STARTER SOLENOID THEFT DETERRENT RELAY TO I/P FUSE BLOCK TO UNDERHOOD FUSE BLOCK #2 TRANS- MISSION RANGE SWITCH UNDERHOOD FUSE BLOCK 1 UTILITY FUSE 9 VALET FUSE 17 WINDSHIELD WIPER/ WASHER SWITCH WIPER FUSE 3 WIRE END TAPED TO I/P HARNESS, UNDER CENTER CONSOLE 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