Oldsmobile Alero I (1999-2004) fuel injectors Wiring diagrams

3.4L A/C BFC FUSE A/C COMP RELAY A/T ABS/ EVO/ IGN FUSE AIR BAG FUSE AIR TEMPERATURE ACTUATOR AUTO TRANS FUSE BODY CONTROL MODULE (BCM) BRN WIRE CLUTCH PEDAL POSITION (PNP) SWITCH CRANK FUSE DK GRN WIRE DRL RELAY REAR DEFOGGER RELAY ERLS FUSE F/P INJR FUSE FROM IGN SW BATT 1 FUSE (DIAGRAM 1 OF 2) FROM IGN SW BATT 2 FUSE (DIAGRAM 1 OF 2) FROM IGNITION SWITCH (DIAGRAM 2 OF 2) FUEL INJECTORS FUEL PUMP RELAY FUSE BLOCK (LEFT I/P) FUSE BLOCK, UNDER- HOOD FUSE BLOCK- RIGHT I/P FUSE BLOCK- UNDERHOOD HAZARD SWITCH HCAV CONTROL ASSEMBLY BODY CONTROL MODULE (BCM) HEATED OXYGEN SENSOR HTR A/C FUSE HVAC BLOWER FUSE CRUISE FUSE SUNROOF FUSE IGN MOD FUSE B/U LP/ BTSI FUSE PCM IGN FUSE IGNITION SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INSTRUMENT PANEL CLUSTER (IPC) IPC/BFC ACC FUSE LOCK M/T MASS AIRFLOW (MAF) SENSOR (3.4L) NCA WIRE ORG/ WIRE PARK/ NEUTRAL POSITION (PNP) SWITCH POWERTRAIN CONTROL MODULE (PCM) PCM ACC FUSE PNK PNK PNK (M/T) (3.4L) (2.2L) (3.4L) 19 24 (2.2L) (A/T) WIRE PNK PNK PNK PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) PPL PPL 61 19 (2.2L) (3.4L) PWR WNDWS CIRCUIT BREAKER CRUISE SW FUSE RED WIRE RED/BLK WIRE SENSOR 1 (2.2L) SENSOR 2 SIR COIL ASSEMBLY WINDOW SWITCH- DRIVER TO HTR A/C IGN FUSE (DIAGRAM 2 OF 2) TO IGN MOD FUSE (DIAGRAM 2 OF 2) TO SUNROOF FUSE (DIAGRAM 2 OF 2) TURN LPS FUSE TURN SIGNAL/ MULTIFUNCTION SWITCH WINDSHIELD WIPER MOTOR ASSEMBLY WIPER FUSE YEL WIRE

1-2 SS 2-3 SS TCC SOL AUTO TRANS FUSE 38 BLK WIRE BLK/WHT WIRE BRN (OR GRY) WIRE BRN WIRE BRN/WHT WIRE CMP SENS SIG CKP SENS SIG CKP SENS LOW REF MAP SENS SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SENS LOW REF TFT SESN LOW REF ISS LOW VSS LOW ENGINE OIL PRESSURE SENSOR (LEFT REAR OF ENGINE) EVAP PURGE SOL PC SOL HIGH PC SOL LOW EVAPORATIVE EMISSION CANISTER PURGE SOLENOID (RIGHT SIDE OF ENGINE) FUEL INJECTORS GENERATOR GRY WIRE GRY/BLK WIRE HEATED OXYGEN SENSOR 1 (LOWER RIGHT SIDE OF ENGINE) HEATED OXYGEN SENSOR 2 (ON REAR OF CATALYTIC CONVERTER) HOT IN RUN UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) ERLS FUSE 47 HOT IN RUN, BULB TEST OR START IAC COIL B HIGH IAC COIL B LOW IC TIMING CTRL IC TIMING CTRL IDLE AIR CONTROL VALVE (LEFT SIDE OF ENGINE) INJ 4 CTRL INJ 3 CTRL GROUND KNOCK SENS LOW REF MAP SENS LOW REF KNOCK SENS SIG KNOCK SENSOR (LOWER LEFT SIDE OF ENGINE) LEFT I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (LEFT SIDE OF ENGINE) NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 22 23 24 25 26 27 28 WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (BELOW LEFT SIDE OF DASH) PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE SPLICE PACK TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSY) TP SENS LOW REF TP SENS SIG TRS SIG P TRS SIG C TRS SIG B TRS SIG A VEHICLE SPEED SENSOR (ON REAR OF TRANSAXLE) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 PNK WIRE 1-2 SS CTRL RIGHT FAN CTRL LEFT FAN CTRL CMP SENS 32 33 PNK WIRE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE BYPASS CTRL IC CTRL VSS OUT PCM GND PCM GND SERIAL DATA CKP SEN SIG 5 VOLT REF A COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE CONTROL SYSTEM 83 845 CRUISE DISABLE FUEL INJ 5 DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP PURGE FUEL INJ 1 2-3 SS CTRL FUEL INJ 3 FUEL INJ 2 FUEL INJ 6 SEN GND FUEL INJECTORS FUEL PUMP AND SENDER ASSEMBLY (IN FUEL TANK) FUEL PUMP MOTOR GRY WIRE HOT AT ALL TIMES PCM BATT FUSE 44 HOT IN ACC, RUN OR START HOT IN RUN OR START HOT IN RUN RIGHT I/P FUSE BLOCK CRUISE FUSE E IAC COIL B HI INSTRUMENT CUSTER SYSTEM KNOCK SENSOR (LOWER LEFT SIDE OF ENG) LEFT I/P FUSE BLOCK LOW REF TCC BK SW SEN GND EGR VAL CTRL KS SIGNAL PPL LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MASS AIRFLOW FLOW SENSOR (TOP REAR OF ENG) ORG/ WIRE ORG/BLK WIRE PCM ACC FUSE G PCM GND SEN GND PCM GROUND SEN GND A/T ISS LO A/T ISS HI VSS HI VSS LO PCM/IGN FUSE 39 PNK 11 12 13 14 15 16 17 18 19 WIRE PNK TRAN RANGE A WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (BELOW LEFT SIDE OF DASH, NEAR STEERING COLUMN) PPL PPL IGN BATTERY PPL PPL DATA LINK CONNECTOR PPL/WHT WIRE RED/BLK WIRE SEN GND TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC/ BRAKE SWITCH (BELOW LEFT SIDE OF DASH) TR SW INPUT B MAF SEN SIG TRANSAXLE RANGE SWITCH (ON LEFT FRONT TOP OF TRANSAXLE) UNDER- HOOD FUSE BLOCK VEHICLE SPEED SENSOR (AT REAR OF ENGINE/TRANSAXLE) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE