Pontiac Firebird IV (1993-2002) a/c system Wiring diagrams

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

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