Oldsmobile Alero I (1999-2004) powertrain control module (pcm) (below left side of dash) Wiring diagrams

5 VOLT REF A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR CLUTCH RELAY A/C PRESS SIG COMPRESSOR CLUTCH RELAY CONTROL BLK WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE GRY WIRE LOW REF POWERTRAIN CONTROL MODULE (PCM) (BELOW LEFT SIDE OF DASH) PPL RED/BLK WIRE SERIAL DATA CLASS 2 SPLICE PACK

5 VOLT REF A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR CLUTCH RELAY A/C PRESS SIG COMPRESSOR CLUTCH RELAY CONTROL BLK WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE GRY WIRE LOW REF POWERTRAIN CONTROL MODULE (PCM) (BELOW LEFT SIDE OF DASH) PPL RED/BLK WIRE SERIAL DATA CLASS 2 SPLICE PACK

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/T ALERO ONLY BLK WIRE BODY CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CLUTCH PEDAL POSITION SWITCH (M/T) (ABOVE CLUTCH PEDAL, ON BRACKET) CPP SWITCH SIG (M/T) CRUISE CANCEL SIG CRUISE CONTROL MODULE (RIGHT SIDE OF ENGINE COMPT) CRUISE CONTROL ON/OFF SWITCH CRUISE DISABLE OUTPUT CRUISE ENGAGED INPUT CRUISE FUSE CRUISE RELEASE (A/T) CRUISE SW FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT IN RUN INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL LEFT I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE M/T OFF OFF ON POWERTRAIN CONTROL MODULE (PCM) (BELOW LEFT SIDE OF DASH) PPL R/A RIGHT I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) S/C SPLICE PACK TCC/BRAKE SWITCH (A/T) (BELOW LEFT SIDE OF DASH) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPARTMENT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (ON REAR OF ENGINE/TRANSAXLE) VSS HIGH VSS LOW VSS OUTPUT YEL WIRE

1134 1732 439 395 238 80 682 INTERIOR LIGHTS SYSTEM A/C BFC FUSE 37 BFC BATT FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) CLASS 2 SERIAL DATA DRIVER DOOR LOCK SWITCH FRONT PASS- ENGER DOOR LOCK SWITCH GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON OR START IGNITION SWITCH (KEY WARNING SWITCH) INSTRUMENT PANEL CLUSTER (IPC) INT LPS FUSE G LEFT FRONT DOOR JAMB SWITCH LEFT I/P FUSE BLOCK LEFT REAR DOOR AJAR SWITCH RIGHT REAR DOOR AJAR SWITCH LOCK LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE OFF HEAD PARK ORG/ WIRE PARK BRAKE SWITCH PARK LAMP ON LFT FRT DOOR DOME IN PARKLAMP FUSE 45 PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (BELOW LEFT SIDE OF DASH) PPL PPL CLASS 2 SERIAL DATA PPL PPL RADIO RIGHT FRONT DOOR JAMB SWITCH RIGHT I/P FUSE BLOCK SEAT BELT SWITCH (PART OF DRIVER'S SEAT BELT BUCKLE) SPLICE PACK TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDER- HOOD FUSE BLOCK UNLOCK WHT WIRE YEL WIRE YEL/BLK WIRE