Pontiac Firebird IV (1993-2002) brn Wiring diagrams

A/T BACK-UP LAMP SWITCH (ON SIDE OF TRANSMISSION) BLK WIRE BRN WIRE HOT IN RUN I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LEFT BACK-UP LAMP LT GRN WIRE M/T PARK/ NEUTRAL POSITION SWITCH (UNDER CONSOLE, NEAR SHIFT CONTROL LEVER) RIGHT BACK-UP LAMP TURN B/U FUSE 2

"ON" BLK WIRE BRN WIRE COUPE CONVERTIBLE DEFOG ENABLE GND DEFOG/SEATS CIRCUIT BREAKER GRY WIRE HOT AT ALL TIMES HOT IN RUN HVAC CONTROL ASSEMBLY HVAC FUSE 6 I/P FUSE BLOCK ON/OFF INPUT IGN ORG/ WIRE PNK PNK REAR WINDOW DEFOGGER SWITCH WIRE PPL REAR WINDOW DEFOGGER GRID REAR WINDOW DEFOGGER TIMER/ RELAY

1 2 3 PNK PNK WIRE 1-2 SHIFT SOL CONTROL HI SPEED COOL FAN CONT LO SPEED COOL FAN CONT CMP INPUT 400 401 PPL 43 44 FUEL INJ 6 CONTROL 2-3 SHIFT SOL CONTROL 439 340 PNK IGNITION BATTERY WIRE 46 47 48 FUEL INJ 4 CONTROL FUEL INJ 5 CONTROL REFERENCE LOW 53 54 55 BYPASS IGNITION CONTROL VSS OUTPUT PCM GROUND PCM GROUND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE BYPASS CKP SYNC SIG CMP OUTPUT CMP SIGNAL COOLING FAN SYSTEM CRUISE MODULE, RADIO, INST CLUSTER 451 451 DATA LINK CONNECTOR (UNDER DASH, TO THE RIGHT OF STEERING COLUMN) DK BLU WIRE DK GRN WIRE DK GRN/ WHT WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE, TRACTION CONTROL MODULE ELECTRONIC IGNITION CONTROL MODULE (ICM) (AT FRONT END OF LEFT CYLINDER HEAD) ENG CTRL FUSE EVAP PURGE VALVE CONT EVAPORATIVE EMISSIONS (EVAP) CANISTER FUEL INJ 1 CONTROL FUEL INJ 2 CONTROL GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST, START HOT IN RUN, START IGN IGN CONTROL IGN VOLTAGE IGNITION KNOCK SENSOR (KS) BANK 2 (RIGHT SIDE OF CYL BLOCK) LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MAF SENSOR INPUT THEFT DETER FUEL ENABLE REQUESTED TORQUE IN 229 463 MASS AIRFLOW (MAF) SENSOR (IN AIR DUCT, FRONT OF INT MANIFOLD) ORG/ WIRE ORG/BLK WIRE PCM BATT FUSE PNK TRANS RANGE A INPUT WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN ENG COMPT, BEHIND RIGHT STRUT TOWER) PPL PPL PNK 4 5 6 7 8 9 WIRE PPL/WHT WIRE PURGE SOLENOID (RIGHT FRONT OF ENG, NEXT TO INJ 2) RED/BLK WIRE REF LOW SERIAL DATA (CLASS 2) PCM GROUND SIGNAL SPLICE PACK STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (BOTTOM) PCM IGN FUSE UNDERHOOD FUSE BLOCK (TOP) VEHICLE SPEED SENSOR (VSS) (ON REAR SIDE OF TRANSMISSION) VSS HIGH VSS LOW WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 PNK PNK WIRE 1 2 3 PNK PNK WIRE 1-2 SHIFT SOL 2-3 SHIFT SOL 3-2 SHIFT SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH A/T FLUID TEMP SENSOR AUTOMATIC TRANSAXLE BLK PNK/ WIRE BLK WIRE BLK/ WHT WIRE BLK/ YEL WIRE BLK/WHT WIRE BLU LT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (CMP) (ENGINE FRONT COVER) CRANKSHAFT POSITION DK BLU WIRE FUEL INJECTORS GEAR IND GRN/ LT WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK GAUGE FUSE 9 HOT IN RUN, BULB TEST, START INJ 1 FUSE LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPL PPL PNK 4 5 6 7 8 9 WIRE PPL PNK WIRE PPL/WHT WIRE PRESSURE CONTROL SOLENOID RED WIRE RED/BLK WIRE REV SECOND GEAR SENSOR (CKP) (LOWER FRONT OF ENG) STOP/ HAZARD FUSE 1 STOPLAMP SWITCH (ON BRAKE PEDAL BRACKET) SWITCH TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL TCC SOL UNDERHOOD FUSE BLOCK (BOTTOM) WHT LT BLU/ WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 PNK PNK WIRE BLK WIRE BLK/WHT WIRE BRAKE SW BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ETC FUSE EXHAUST GAS RECIRCULATION (EGR) VALVE (LEFT FRONT OF ENGINE) FUEL LEVEL SENSOR FUEL PUMP RELAY FUEL TANK PRESSURE SENSOR FUEL TANK UNIT FUEL TANK UNIT FUEL PUMP FUSED INPUT GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES FUEL PUMP FUSE TCS BATT FUSE HOT IN RUN, BULB TEST, START LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR (RIGHT SIDE OF INTAKE MANIFOLD) MOTOR DRIVER NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PPL PPL 10 11 PPL PNK WIRE RED WIRE RED/BLK WIRE RES/ACC SET/COAST SIG TAC SER DATA TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE ACTUATOR CONTROL THROTTLE ACTUATOR CONTROL MODULE (ON ACCELERATOR PEDAL BRACKET) TP SENS 1 TPS 2 GND TPS 2 SIG UNDER- HOOD FUSE BLOCK (BOTTOM) UNDER- HOOD FUSE BLOCK (TOP) WHT WIRE YEL WIRE YEL/BLK WIRE

3-2 SOL CONTROL 5 VOLT REFERENCE A 5 VOLT REFERENCE B SENSOR GROUND A/C COMP RELAY CONTROL A/C SYSTEM A/T FLUID TEMP INPUT FUEL LEVEL INPUT PPL BLK WIRE BLK/ WHT WIRE BODY CONTROL MODULE STARTER ENABLE SIGNAL BRN WIRE BRN/WHT WIRE CLUTCH PEDAL POSITION SWITCH (ON CLUTCH PEDAL BRACKET) CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE, TRACTION CONTROL MODULE 121 464 ENG SEN FUSE ENG SPEED OUT DELIVERED TORQUE OUT ENGINE COOLANT TEMPERATURE (ECT) SENSOR ENGINE OIL LEVEL SWITCH (IN LEFT SIDE OF OIL PAN) EVAP SOLENOID CONTROL FUEL PUMP RELAY CONTROL EGR VALVE CONTROL MIL CONTROL FUEL INJ 3 CONTROL FUEL TANK PRESS SENSOR GAUGES FUSE 9 GEN TERM L CONTROL CHARGING SYSTEM GRY WIRE HEATED OXYGEN SENSOR BANK 1 SENSOR 1 (ON LEFT EXHAUST MANIFOLD) HEATED OXYGEN SENSOR BANK 2 SENSOR 1 (ON RIGHT EXHAUST MANIFOLD) HEATED OXYGEN SENSOR BANK SENSOR 3 (REAR OF CAT CONVERTER) HOT IN RUN, BULB TEST, START HOT IN START UNDERHOOD FUSE BLOCK (BOTTOM) STRTR FUSE I/P FUSE BLOCK IAT SENSOR INPUT INSTRUMENT PANEL CLUSTER LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE MIL IND NCA WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN ENG COMPT, BEHIND RIGHT STRUT TOWER) PPL PPL/WHT WIRE PRESS SOL HIGH CONTROL PRESS SOL LOW CONTROL RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL CONTROL TCC SOL CONTROL TRANS RANGE B INPUT ENG OIL LEVEL SW INPUT TRANS RANGE SW P INPUT TRANS RANGE C INPUT CLUTCH ANTICIPATE SIG 1226 48 WHT WIRE YEL WIRE YEL/BLK WIRE

17 18 19 20 PPL PPL 21 22 23 24 25 PNK PNK WIRE A/C SYSTEM ANTI-LOCK BRAKES SYSTEM BATT SERIAL DATA BLK WIRE BLK/WHT WIRE BREAKOUT) BRN WIRE BRN/WHT WIRE CLUTCH ANTICIPATE SW SIG TCC/CRUISE BRAKE SW IN PNP SW SIG PPL CLUTCH PEDAL POSITION SWITCH (ON CLUTCH PEDAL BRACKET) CMP SEN SIG IN ECT SEN SIG COOLING FANS SYSTEM DATA LINK CONNECTOR (UNDER DASH, RIGHT OF STEERING COLUMN) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ECT SEN GND FRONT KS SIG FUEL GND FUEL INJECTORS FUSE GRY WIRE HOT IN RUN, BULB TEST OR START HOT IN RUN, BULB TEST, START KNOCK SENSOR 1 (CENTER OF ENG, BELOW MANIFOLD) KNOCK SENSOR 2 (CENTER OF ENG, BELOW MANIFOLD) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE OIL LEVEL SWITCH IN ORG/ WIRE ORG/BLK WIRE PCM GND EGR SEN GND COOLING FAN 1 RLY CTRL PCM GND IGN FEED PCM IGN FUSE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE (IN ENG COMPT, BEHIND RIGHT STRUT TOWER) PPL PPL PPL PPL/WHT WIRE REAR KS SIG CKP SEN SIG RED WIRE RED/BLK WIRE SEN GND MAP SEN GND EGR SIG SEN GND REF LOW SKIP SHIFT SOL CTRL (M/T) 3-2 SS VALVE CTRL (A/T) TAN WIRE TAN/WHT WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY) TRANS RANGE "B" IN TRANS RANGE "C" IN IGN BATT REF LOW UNDER- HOOD FUSE BLOCK (TOP) PCM BAT FUSE UNDERHOOD FUSE BLOCK (BOTTOM) WHT (OR GRY) WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOLENOID 17 18 19 20 PPL PPL 2-3 SHIFT SOLENOID 21 22 23 24 25 PNK PNK WIRE 23 24 PNK WIRE 3-2 SHIFT SOLENOID 9 10 PNK WIRE A/T AIR PUMP RELAY AUTOMATIC TRANSMISSION BANK 2 RIGHT FRONT HEATED OXYGEN SENSOR (IN RIGHT EXHAUST MANIFOLD) BLK WIRE BLK/WHT WIRE BLU LT WIRE BRN WIRE DK BLU WIRE GRN/ LT WIRE GRY WIRE HOT W/ IGN 1 RELAY ENERGIZED LO SW BANK 2 RIGHT REAR HEATED OXYGEN SENSOR (REAR OF RIGHT CATALYTIC CONVERTER) LT BLU/ WHT WIRE LT BLU/WHT WIRE LT GRN WIRE M/T MANUAL TRANSMISSION MASS AIRFLOW SENSOR (IN AIR DUCT, IN FRONT OF INTAKE MANIFOLD) NCA WIRE ORG/ WIRE ORG/BLK WIRE PESSURE CONTROL SOLENOID VALVE PNK WIRE PNK/BLK WIRE PPL PPL AUTOMATIC TRANSMISSION FLUID PRESSURE MANUAL VALVE POSITION SWITCH RED WIRE RED/BLK WIRE REV SW REVERSE INHIBIT SOLENOID SECONDARY AIR INJECTION BYPASS VALVE (ON RIGHT FRONT FRAME RAIL) SECONDARY AIR INJECTION PUMP (ON RIGHT FRONT FRAME RAIL) SKIP SHIFT SOLENOID SW SW TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC SOLENOID TRANSMISSION FLUID TEMP SENSOR UNDERHOOD FUSE BLOCK (BOTTOM) UNDERHOOD FUSE BLOCK (BOTTOM) ENG SEN FUSE WHT (OR GRY) WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

11 12 PNK WIRE 23 24 PNK WIRE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE OIL LEVEL SWITCH (IN SIDE OF OIL PAN) EXHAUST GAS RECIRCULATION VALVE (2000) (UPPER RIGHT FRONT CORNER OF ENG) FUEL LEVEL SENSOR FUEL PUMP FUEL TANK PRESSURE SENSOR FUEL TANK UNIT GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES FUEL PUMP FUSE AIR PUMP FUSE IGN IGN CTRL SIG IGNITION COIL/ MODULE 1 (AT TOP OF CYLINDER) IGNITION COIL/ MODULE 3 (AT TOP OF CYLINDER) IGNITION COIL/ MODULE 5 (AT TOP OF CYLINDER) IGNITION COIL/ MODULE 7 (AT TOP OF CYLINDER) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PARK/NEUTRAL POSITION SWITCH (UNDER CONSOLE, NEAR SHIFT CONTROL LEVER) PLUG PLUG SPARK PNK 26 27 28 29 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 21 22 23 24 25 PNK WIRE PPL 7 8 RED WIRE RED/BLK WIRE REF LO SPARK TAN/BLK WIRE UNDERHOOD FUSE BLOCK (BOTTOM) FUEL PUMP RELAY UNDERHOOD FUSE BLOCK (TOP) WHT WIRE YEL WIRE YEL/BLK WIRE

11 12 PNK WIRE A/C REQUEST A/C CLUTCH STATUS A/C SYSTEM A/C SYSTEM PPL AIR BYPASS VLV CTRL AIR PUMP RLY CTRL CRUISE CTRL INHIBIT ANTI-LOCK BRAKES SYSTEM ANTI-THEFT SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE CONTROL, SOUND (CAMARO), INSTRUMENT CLUSTER SYSTEMS CRUISE CTRL ENABLE SIG A/C REFRIG PRESS SEN SIG GENERATOR TERM "L" OUT DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CAN PURGE VALVE CTRL GRY WIRE GRY/BLK WIRE HOT W/ IGN 1 RELAY ENERGIZED INSTRUMENT PANEL CLUSTER IAC COIL "B" HI IAC COIL "B" LO IAC COIL "A" LO IAC COIL "A" HI IDLE AIR CONTROL VALVE (ON THROTTLE BODY) IGN IGN CTRL SIG IGN ENG CTRL FUSE IGNITION COIL/ MODULE 2 (AT TOP OF CYLINDER) IGNITION COIL/ MODULE 4 (AT TOP OF CYLINDER) IGNITION COIL/ MODULE 6 (AT TOP OF CYLINDER) IGNITION COIL/ MODULE 8 (AT TOP OF CYLINDER) INTAKE AIR TEMPERATURE SENSOR (ON AIR INTAKE DUCT, FWD OF INTAKE MANIFOLD) LT BLU WIRE LT BLU/ WHT WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MALFUNCTION INDICATOR LAMP PNK (MIL) WIRE NCA WIRE PC SOL VALVE HI EGR VALVE CTRL PC SOL VALVE LO FUEL PUMP RLY CTRL TACH OUT PLUG SPARK PNK 26 27 28 29 WIRE PNK TRANS RANGE "A" IN FUEL TANK PRESSURE WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (IN ENG COMPT, BEHIND RIGHT STRUT TOWER) PPL PPL 7 8 PPL PNK 21 22 23 24 25 WIRE PPL SEN GND PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE REF LO REF LOW REF LOW SPARK PLUG STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TCS SPARK RETARD SIG FUEL LEVEL IN PPL THEFT DETER FUEL ENABLE MAF SEN SIG MAP SEN SIG COOL FANS 2, 3 RLY CTRL TP SEN SIG IAT SEN IN UNDER- HOOD FUSE BLOCK (BOTTOM) VSS LO VSS HI VSS OUT TFT SEN SIG WHT WIRE YEL WIRE YEL/BLK WIRE