Oldsmobile Alero I (1999-2004) org/ Wiring diagrams

5 VOLT REF A/C A/C BFC FUSE 37 A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR CLUTCH RELAY A/C ON A/C REFRIGERANT PRESSURE SENSOR (FRONT OF ENG COMPT) A/C REQUEST A/C REQUEST OUTPUT REAR DEFOG AIR TEMPERATURE ACTUATOR (RIGHT SIDE OF HVAC ASSEMBLY) BATTERY VOLTAGE BI- LVL HEAT BLK WIRE BLK/WHT WIRE BLOWER HVAC RELAY BLOWER MOTOR BLOWER MOTOR RESISTOR ASSEMBLY (BELOW RIGHT SIDE OF DASH) BLOWER SWITCH BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) A/C REQUEST INPUT BRN WIRE COMPUTER DATA LINES SYSTEM COOL FAN 1 FUSE 8 COOL FAN 1 RELAY COOL FAN 2 FUSE 52 COOL FAN MODE RELAY COOL FAN 2 RELAY COOLING FAN (LEFT) COOLING FAN (RIGHT) DEF HEAT/ DEF DEF ON DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR CTRL INPUT ECT SENSOR HIGH SPEED FAN CONTROL ENGINE COOLANT TEMPERATURE (ECT) SENSOR (RIGHT REAR OF ENGINE) GROUND GRY WIRE HEATER COMMAND OUTPUT HI BLO MOT FUSE 53 HIGH OFF LOW HOT AT ALL TIMES HOT IN RUN HOT IN RUN, START HTR-A/C FUSE 46 HVAC BLOWER FUSE D HVAC CONTROL ASSEMBLY IGN IGN 3 VOLTAGE MODE REQUEST ILLUM IPC/HVAC BATT FUSE L LH I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LOW REF LOW SPEED FAN CONTROL LT BLU WIRE LT GRN WIRE MAX VENT MODE SWITCH ORG/ WIRE OSA OSA ON REC ON OSA REQUEST REC REQUEST PARK LAMP SUPPLY A/C DISABLE POWERTRAIN CONTROL MODULE (PCM) (BELOW LEFT SIDE OF DASH) A/C PRESS SIG LOW REF PPL REC RED/BLK WIRE RH I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) SERIAL DATA CLASS 2 SERIAL DATA CLASS 2 LH I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) SPLICE PACK SPLICE PACK SPLICE PACK TAN WIRE UNDERHOOD FUSE BLOCK (IN LEFT SIDE OF ENGINE COMPARTMENT, ON STRUT TOWER) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, ON STRUT TOWER) WHT WIRE YEL WIRE

BLK WIRE BLU WIRE COOL FAN 1 FUSE COOL FAN 1 RELAY COOL FAN 2 FUSE COOL FAN 2 GROUND FUSE 55 COOL FAN 2 RELAY COOL FAN MODE RELAY COOLING FAN (LEFT) COOLING FAN (RIGHT) ECT SENSOR ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE (ECT) SENSOR (RIGHT REAR OF ENGINE) GRN WIRE GRY WIRE HOT AT ALL TIMES LOW SPEED FAN CONTROL LOW REF LT DK ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (BELOW LEFT SIDE OF DASH) HIGH SPEED FAN CONTROL WHT WIRE YEL WIRE

5 VOLT REF A/C A/C BFC FUSE 37 A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR CLUTCH RELAY A/C ON A/C REFRIGERANT PRESSURE SENSOR (FRONT OF ENG COMPT) A/C REQUEST A/C REQUEST OUTPUT REAR DEFOG AIR TEMPERATURE ACTUATOR (RIGHT SIDE OF HVAC ASSEMBLY) BATTERY VOLTAGE BI- LVL HEAT BLK WIRE BLK/WHT WIRE BLOWER HVAC RELAY BLOWER MOTOR BLOWER MOTOR RESISTOR ASSEMBLY (BELOW RIGHT SIDE OF DASH) BLOWER SWITCH BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) A/C REQUEST INPUT BRN WIRE COMPUTER DATA LINES SYSTEM COOL FAN 1 FUSE 8 COOL FAN 1 RELAY COOL FAN 2 FUSE 52 COOL FAN 2 GROUND FUSE 55 COOL FAN MODE RELAY COOL FAN 2 RELAY COOLING FAN (LEFT) COOLING FAN (RIGHT) DEF HEAT/ DEF DEF ON DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR CTRL INPUT ECT SENSOR HIGH SPEED FAN CONTROL ENGINE CONTROLS SYSTEM GROUND GRY WIRE HEATER COMMAND OUTPUT HI BLO MOT FUSE 53 HIGH OFF LOW HOT AT ALL TIMES HOT IN RUN HOT IN RUN, START HTR-A/C FUSE 46 HVAC BLOWER FUSE D HVAC CONTROL ASSEMBLY IGN IGN 3 VOLTAGE MODE REQUEST ILLUM IPC/HVAC BATT FUSE L LH I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LOW REF LOW SPEED FAN CONTROL LT BLU WIRE LT GRN WIRE MAX VENT MODE SWITCH ORG/ WIRE ORG/BLK WIRE OSA OSA ON REC ON OSA REQUEST REC REQUEST PARK LAMP SUPPLY A/C DISABLE POWERTRAIN CONTROL MODULE (PCM) (BELOW LEFT SIDE OF DASH) A/C PRESS SIG LOW REF PPL REC RED/BLK WIRE RH I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) SERIAL DATA CLASS 2 SERIAL DATA CLASS 2 LH I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) SPLICE PACK SPLICE PACK SPLICE PACK TAN WIRE UNDERHOOD FUSE BLOCK (IN LEFT SIDE OF ENGINE COMPARTMENT, ON STRUT TOWER) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT, ON STRUT TOWER) WHT WIRE YEL WIRE

15 58 (2.4L) (3.4L) 2.4L 2.4L 3.4L 3.4L ABS FUSE 4 ABS IND. ABS/EVO/IGN FUSE 40 BATTERY BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRAKE FLUID LEVEL SWITCH (ON MASTER CYLINDER RESERVOIR) BRAKE IND BRAKE PRESSURE MODULATOR VALVE BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (DLC) (BELOW DASH, LEFT OF STEERING COLUMN) DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (INSIDE LEFT FRONT FENDER) ELECTRONIC POWER STEERING SYSTEM GROUND GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT PANEL CLUSTER IPC/HVAC BATT FUSE L LEFT FRONT WHEEL SPEED SENSOR LEFT I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LEFT REAR WHEEL SPEED SENSOR LOW REF VAR EFF STR ACT CNTL VAR EFF STR ACT SUPP LOW TRAC IND LT BLU WIRE NCA WIRE OLDSMOBILE ORG/ WIRE ORG/BLK WIRE PNK WIRE PONTIAC POWERTRAIN CONTROL MODULE (PCM) (BELOW LEFT SIDE OF DASH) PPL PPL PPL PPL PPL PPL PPL SERIAL DATA TRAC CNTL SW PUMP MOTOR RED WIRE RIGHT FRONT WHEEL SPEED SENSOR RIGHT REAR WHEEL SPEED SENSOR SERIAL DATA SPLICE PACK SPLICE SPLICE STOP LAMP SWITCH (BELOW LEFT SIDE OF DASH) STOP LPS FUSE J TAN WIRE TRAC OFF IND TRACTION CONTROL SWITCH TRACTION CONTROL SWITCH UNDERHOOD FUSE BLOCK (IN LEFT SIDE OF ENGINE COMPT, ON STRUT TOWER) WHT WIRE YEL WIRE

15 58 (4-CYL) (6-CYL) CLASS 2 SERIAL DATA A/C BFC FUSE 37 BFC BATTERY FUSE F BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BELOW RIGHT SIDE OF DASH) DATA DRIVER DOOR LOCK SWITCH FUSE I HEADLIGHTS SYSTEM HORNS SYSTEM HOT AT ALL TIMES HOT IN ACC, ON OR START HOT IN ON, START IGNITION LOCK CYLINDER INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM IPC/BFC LEFT FRONT DOOR JAMB SWITCH LEFT FRONT DOOR LOCK SWITCH LEFT I/P FUSE BLOCK LEFT I/P FUSE BLOCK (ON LEFT SIDE OF DASH) LEFT REAR DOOR AJAR SWITCH LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT LT ORG/ WIRE PASSENGER FRONT DOOR LOCK SWITCH PASSLOCK SENSOR (PART OF IGNITION SWITCH) PNK WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE (PCM) (BELOW LEFT SIDE OF DASH) PPL PPL CLASS 2 SERIAL DATA PPL DATA LINK CONNECTOR (BELOW LEFT SIDE OF DASH) PPL PPL PPL/ PPL/ PPL/ PPL/ REAR COMPARTMENT LID RELEASE SWITCH REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (ON REAR PACKAGE SHELF) RIGHT FRONT DOOR JAMB SWITCH RIGHT FRONT DOOR LOCK SWITCH RIGHT I/P FUSE BLOCK RIGHT REAR DOOR AJAR SWITCH SECURITY INDICATOR SPLICE PACK TRUNK RELEASE RELAY UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

A/C BFC FUSE 37 A/C SYSTEM AMBIENT LIGHT SENSOR (TOP OF DASH TRIM PAD) ANTI-THEFT SYSTEM BFC BATT FUSE F BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM ANTI-THEFT SYSTEM COOLANT LEVEL SWITCH (RIGHT SIDE OF ENGINE COMPT) CRUISE CONTROL SYSTEM CRUISE FUSE E DK BLU WIRE DK GRN/WHT WIRE DOOR LOCK CTRL DOOR LOCK LOCK/UNLOCK SIG DRL AMBIENT LIGHT SEN LOW REF DOOR LOCKS SYSTEM DRIVER LOCK RELAY UNLOCK DRL RLY CTRL FRONT FOG LAMP SW SIG TRACTION CONTROL SW SIG WINDSHIELD WASHER FLUID LEVEL GRY/BLK WIRE HEADLAMP BEAM-LOW HEADLAMP LOW BEAM RLY CTRL FOG LAMP RLY CTRL PARK LAMP SW SIG HORN RLY CTRL HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM ANTI-LOCK BRAKE SYSTEM HEADLIGHTS SYSTEM ANTI-THEFT SYSTEM TRUNK RELEASE SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HORNS SYSTEM HOT AT ALL TIMES HOT IN ACC, ON OR START HOT IN ON OR START HOT IN RUN INT LPS FUSE G INTERIOR LIGHTS SYSTEM WARNING SYSTEM WARNING SYSTEM IPC/BFC ACC FUSE I LEFT FRONT DOOR AJAR SW SIG BATTERY POSITIVE VOLTAGE LEFT I/P FUSE BLOCK LOW COOLANT LEVEL IND CTRL A/C REQUEST SIG LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE OIL/ TIRE RESET SWITCH OLDSMOBILE ORG/ WIRE PARK BRAKE SWITCH PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWER DISTRIBUTION CENTER PPL PPL IGNITION 0 VOLTAGE PARK LAMP RLY CTRL RIGHT I/P FUSE BLOCK SECURITY SYST SENSOR SIG SPLICE PACK TRUNK RELEASE RLY CTRL TRUNK RELEASE SYSTEM UNDERHOOD FUSE BLOCK WASHER FLUID LEVEL SENSOR (INSIDE LEFT FRONT FENDER) WHT WIRE YEL WIRE YEL/BLK WIRE

2.4L 3.4L BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) DATA LINK CONNECTOR (DLC) (BELOW DASH, LEFT OF STEERING COLUMN) ELECTRONIC BRAKE CONTROL MODULE (EBCM) (INSIDE LEFT FRONT FENDER) HAZARD SWITCH HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) IPC/HVAC BATT FUSE LEFT I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LEFT I/P FUSE BLOCK (BEHIND LEFT SIDEOF DASH) ORG/ WIRE POWERTRAIN CONTROL MODULE (BELOW LEFT SIDE OF DASH) PPL PPL DATA CLSS 2 RADIO REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (ON REAR PACKAGE SHELF) SPLICE PACK SPLICE PACK WHT WIRE

2.2L 3.4L ABS FUSE 4 ABS/EVO/IGN FUSE BATTERY GROUND GROUND BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ELECTRONIC BRAKE CONTROL MODULE (EBCM) (INSIDE LEFT FRONT FENDER) ELECTRONIC VARIABLE ORIFICE (EVO) SOLENOID GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START LT BLU WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE POWER STEERING PUMP ACTUATOR PPL RED WIRE STEERING WHEEL POSITION SENSOR UNDERHOOD FUSE BLOCK (IN LEFT SIDE OF ENGINE COMPT, ON STRUT TOWER) WHT WIRE

A/C PRESS LOW REF A/C PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR (RIGHT FRONT CORNER OF ENG COMPT) A/C SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLUTCH PEDAL POSITION SWITCH (ABOVE CLUTCH PEDAL) COOLING FAN SYSTEM CPP SW SIGNAL IGN 0 VOLTAGE IGNITION BATTERY PPL PNK WIRE CRUISE FUSE E CRUISE INHIBIT SIG DATA LINK CONNECTOR (BELOW DASH. LEFT OF STEERING COLUMN) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP VENT SOL FUEL PUMP CTRL A/C CLUTCH RELAY EVAPORATIVE EMISSION CANISTER VENT SOLENOID (UNDER REAR OF VEHICLE) FTP SENS LOW REF FTP SENS SIG FUEL PUMP FUEL PUMP, SENDER ASSEMBLY FUEL TANK PRESSURE SENSOR (UNDER REAR OF VEHICLE) GRY WIRE HI SPD COOL FAN RLY HOT AT ALL TIMES HOT IN ACC, ON OR START HOT IN RUN, BULB TEST OR START IAT SENS LOW REF INSTRUMENT PANEL CLUSTER IPC/BFC ACC FUSE I LEFT I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LO SPD FAN CONTROL LT BLU/BLK WIRE MIL CONTROL SPEED SIG ORG/ WIRE ORG/BLK WIRE PCM ACC FUSE G PCM BATT FUSE 44 PCM IGN FUSE 39 PNK WIRE POWERTRAIN CONTROL MODULE (BELOW LEFT SIDE OF DASH) PPL PPL BRAKE SW PPL CLASS 2 SERIAL DATA PPL FUEL LEVEL SIG RED/BLK WIRE RIGHT I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) SERVICE ENGINE SOON IND SOLID STATE TAN WIRE TCC/ BRAKE SWITCH (BELOW LEFT SIDE OF DASH) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE

1-2 SHIFT SOL 2-3 SHIFT SOL TCC PWM SOL AUTOMATIC TRANSAXLE AUTOMATIC TRANSAXLE FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE FLUID TEMPERATURE SENSOR AUTOMATIC TRANSAXLE INPUT SHAFT SPEED SENSOR BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE F/P INJR FUSE 48 FUEL PUMP RELAY 18 GRY WIRE HOT IN RUN, BULB TEST OR START IGNITION COILS IGNITION CONTROL MODULE (TOP REAR OF ENGINE) INTER- CONNECT LEFT I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE ORG/ WIRE PNK 22 23 24 25 26 27 28 WIRE PNK WIRE PPL PRESSURE CONTROL SOL RED WIRE RED/BLK WIRE RELEASE TCC REV,D,2,1 SPLICE PACK TAN WIRE TRANSAXLE RANGE SWITCH (TOP OF TRANSAXLE) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) IGN MOL FUSE 41 WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE