Chevrolet Cobalt I (2004-2010) (behind left side of dash, near steering column) Wiring diagrams

2.2L 2.4L ABS INDICATOR BATT POS VOLTAGE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH) BRAKE FLUID LEVEL SENSOR SIGNAL BRAKE FLUID LEVEL SWITCH (IN REAR OF ENGINE COMPT, ATTACHED TO MASTER CYLINDER) BRAKE INDICATOR CLSTR FUSE COMPUTER DATA LINES SYSTEM DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT, IN FRONT OF GROUND HI SPD GMLAN SER DATA - HI SPD GMLAN SERIAL DATA HOT AT ALL TIMES IGN INSTRUMENT PANEL CLUSTER LEFT REAR WHEEL SPEED SENSOR (WSS) (INSIDE LEFT REAR WHEEL HUB) LO SPD GMLAN SERIAL DATA LOGIC LOW SPD GMLAN SER DATA LT BLU WIRE ON RIGHT SIDE OF CENTER CONSOLE) ORG/ WIRE PARK BRAKE SWITCH (IN CENTER CONSOLE, ATTACHED TO PARKING BRAKE) PARK BRAKE SWITCH SIGNAL PNK WIRE RED WIRE RED/WHT WIRE SERIAL DATA TAN WIRE TAN/BLK WIRE TRACTION OFF IND UNDERHOOD FUSE BLOCK

2.2L 2.4L ABS INDICATOR BATT POS VOLTAGE BLK WIRE BLK/WHT WIRE BLU LT WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF BRAKE BOOSTER VACUUM SENSOR BRAKE FLUID LEVEL SENSOR SIGNAL BRAKE FLUID LEVEL SWITCH (IN REAR OF ENGINE COMPT, ATTACHED TO MASTER CYLINDER) BRAKE INDICATOR CENTER CONSOLE CLSTR FUSE COMPUTER DATA LINES SYSTEM DATA - HI SPD GMLAN SERIAL DK BLU WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT, IN FRONT OF GROUND GRY WIRE HI SPD GMLAN SER DATA - HI SPD GMLAN SERIAL DATA HOT AT ALL TIMES IGN INSTRUMENT PANEL CLUSTER LO SPD GMLAN SERIAL DATA LOGIC LOW SPD GMLAN SER DATA LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE PARK BRAKE SWITCH (IN CENTER CONSOLE, ATTACHED TO PARKING BRAKE) PNK WIRE PRAKE BRAKE SWITCH SIGNAL RED/WHT WIRE SERIAL DATA SWITCH TAN WIRE TAN/BLK WIRE TRACTION CONTROL TRACTION CONTROL SWITCH SIGNAL TRACTION OFF IND UNDERHOOD FUSE BLOCK

2 20 SERIAL DATA + SERIAL DATA - 28 747 746 1250 748 745 744 5531 109 HORNS SYSTEM 43 44 GMLAN SERIAL DATA + GMLAN SERIAL DATA - ACC VOLT SIG ACC VOLT SUPPLY BATT POS VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRN WIRE CLSTR FUSE 7 COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER RIGHT REAR DOOR JAMB SWITCH DOOR JAMB SWITCH FUSE 10 GMLAN SERIAL DATA GRN WIRE GROUND GRY WIRE GRY/BLK WIRE HAZARD SW SIG HOOD AJAR SWITCH (W/ KEYLESS ENTRY) (FRONT OF VEHICLE, PART OF HOOD LATCH) HOT AT ALL TIMES HVAC IGN KEY RES SIG IGNITION SWITCH INSTRUMENT PANEL CLUSTER (IPC) LEFT REAR DOOR JAMB SWITCH LOGIC LOGIC SECURITY IND SUPPLY VOLTAGE LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE OFF OFF/RUN/CRANK ORG/ WIRE ORG/BLK WIRE PASSENGER DOOR JAMB SWITCH POWER DISTRIBUTION SYSTEM PPL REAR COMPARTMENT LID RELEASE ACTUATOR (IN LATCH ASSEMBLY) RED WIRE RED/WHT WIRE RUN WIRE SECURITY IND SECURITY INDICATOR TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THEFT DETERRENT CONTROL MODULE (IN STEERING COLUMN, NEAR IGNITION SWITCH) WHT WIRE WHT/BLK WIRE

ACC VOLTS ACCELERATOR PEDAL POSITION (APP) SENSOR (NEAR ACCELERATOR PEDAL BRACKET) AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL ON IND DATA BUS - DK BLU WIRE DK GRN WIRE EPS/ STR WHL CRUISE CNTRL CTRL FUSE 19 SW SIG VOLTS GRY WIRE HOT W/ RUN/CRANK RELAY ENERGIZED LEFT STEERING WHEEL CONTROL SWITCH LOGIC LT BLU WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL VSS LOW SIG RES+ SET- TAN WIRE TAN/BLK WIRE THROTTLE ACTUATOR CONTROL (TAC) MODULE (TOP OF INTAKE MANIFOLD) VEHICLE SPEED SENSOR (VSS) VSS HIGH SIG WHT WIRE WHT/BLK WIRE YEL WIRE

67 18 21 41 5 VOLT REF APP SENS 2 SIG LOW REF LOW REF APP SENS 1 SIG 5 VOLT REF ACCELERATOR PEDAL POSITION (APP) SENSOR (NEAR ACCELERATOR PEDAL BRACKET) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CPP SIG SENS CPP SW SIG CRUISE CONTROL ON IND DATA BUS - DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE EPS/ STR WHL CRUISE CNTRL CTRL FUSE 19 SW SIG IGN GRY WIRE HOT W/ RUN/CRANK RELAY ENERGIZED IGN LEFT STEERING WHEEL CONTROL SWITCH LOGIC LOW REF LT BLU WIRE LT GRN WIRE ORG/GRN WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RES+ SET- TAN WIRE TAN/BLK WIRE THROTTLE ACTUATOR CONTROL (TAC) MODULE (TOP OF INTAKE MANIFOLD) TRANSMISSION VEHICLE SPEED SENSOR (VSS) (TOP OF MANUAL VSS HIGH SIG VSS LOW SIG WHT WIRE WHT/BLK WIRE YEL WIRE

2.2L, W/ SULEV A/C COMPRESSOR CLUTCH DIODE BLK WIRE BODY CONTROL MODULE (BCM) DR DOOR UNLOCK PCB RELAY COOL FANS RELAY DATA LINK CONNECTOR (DLC) DOOR LOCK PCB RELAY DOOR UNLOCK PCB RELAY DRIVER TURN SIGNAL/ HEATED MULTI-FUNCTION SEAT SWITCH SWITCH ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) ENGINE COOLING FAN FOG LAMP PCB RELAY FUEL PMP RELAY HORN HVAC CONTROL MODULE IGNITION COIL/ MODULE 1 IGNITION COIL/ MODULE 2 IGNITION COIL/ MODULE 3 IGNITION COIL/ MODULE 4 INFLATABLE RESTRAINT PASSENGER AIR BAG ON/OFF INDICATOR INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INSTRUMENT PANEL CLUSTER (IPC) LEFT FRONT FOG LAMP LEFT FRONT MARKER LAMP LEFT HEADLAMP LEFT PARK/TURN SIGNAL LAMP MASS AIR FLOW (MAF)/ INTAKE AIR TEMPE- RATURE (IAT) SENSOR NCA WIRE PASSENGER HEATED SEAT SWITCH REAR COMPARTMENT LID RELEASE SWITCH REAR DEFOG RELAY REMOTE (IF CONTROL EQUIPPED) DOOR LOCK FOG RECEIVER LAMP (RCDLR) SWITCH RUN/ CRNK RELAY SECONDARY AIR INJECTION (AIR) PUMP THEFT DETERRENT MODULE RADIO (TDM) UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) W/ FRONT HEATED SEATS WHT WIRE WINDSHIELD WASHER FLUID PUMP WINDSHIELD WIPER MOTOR WIPER HI/LO RELAY WIPER ON/OFF RELAY

3 4 10 524 HEADLAMP SW SIG HIGH BEAM SIGNAL PPL 71 44 54 592 1969 317 DRL RLY CTRL HI BEAM RLY CTRL FOG LMP RLY CTRL AMBIENT LIGHT SENSOR (DASH TRIM PAD, NEAR WINDSHIELD ON DRIVER'S SIDE) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRN WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DRL PCB RELAY FOG LAMP FUSE FOG LAMP IND FOG LAMP PCB RELAY FOG LAMP SWITCH FTP GRY WIRE HEAD HI BEAM PCB RELAY HIGH BEAM HIGH BEAM IND HOT AT ALL TIMES IGN INSTRUMENT PANEL CLUSTER (IPC) LEFT HEADLAMP LO BEAM PCB RELAY LOGIC LOW BEAM LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT HI BEAM FUSE LT LO BEAM FUSE DRL FUSE OFF AUTO PARK ORG/ WIRE PARK BRAKE SW SIG PARK BRAKE SWITCH (IN CENTER CONSOLE, ATTACHED TO PARKING BRAKE) PNK WIRE PNK/WHT WIRE PPL PPL PPL PPL/WHT WIRE RIGHT FRONT FOG LAMP LEFT FRONT FOG LAMP RIGHT HEADLAMP RT HI BEAM FUSE RT LO BEAM FUSE SERIAL DATA STEERING COLUMN) TAN WIRE TAN/WHT WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRN WIRE DK GRN WIRE HORN (ABOVE LEFT FOG LAMP) HORN FUSE HORN NEXT TO LEFT PCB RELAY STRUT TOWER) HORN RLY CTRL HORN SWITCH HOT AT ALL TIMES LOGIC NCA WIRE TAN WIRE UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, WHT WIRE

39 24 PPL 1589 2759 FUEL LVL SENS SIG LOW REF 44 43 2501 2500 GMLAN SER DATA- GMLAN SER DATA+ ABS IND. AIR BAG IND AJAR SWITCH ANTI-THEFT SYSTEM BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRAKE FLUID LEVEL SWITCH (IN REAR OF ENGINE COMPT, ATTACHED TO MASTER CYLINDER) BRAKE IND BRN/WHT WIRE CHARGING IND CLSTR FUSE 7 COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DIC SW SIG DK GRN WIRE DK GRN/WHT WIRE DOOR HINGES) DRIVER DOOR AJAR SWITCH DOOR HINGES) FRONT PASSENGER DOOR AJAR SWITCH DRIVER INFORMATION CENTER (DIC) ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM INTERIOR LIGHTS SYSTEM ENGINE COOLANT TEMPERATURE IND ENGINE OIL PRESSURE (EOP) SWITCH FRONT FOG LAMP IND FUEL LEVEL FUEL PUMP, SENDER ASSEMBLY (INSIDE FUEL TANK) GMLAN SER DATA GRY WIRE GRY/BLK WIRE HIGH BEAM IND HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED HVAC/ IP IGN FUSE 16 IGN IGN 1 VOLT BAT GND GND INSTRUMENT PANEL CLUSTER (IPC) LEFT TURN IND LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE MALFUNCTION IND MIL CTRL OIL LEVEL IND OIL PRES SW SIG PARK BRAKE SWITCH (IN CENTER CONSOLE, ATTACHED TO PARKING BRAKE) PNK PNK WIRE PNK WIRE PNK/ORG WIRE POWER DISTRIBUTION SYSTEM PPL RED WIRE RED/WHT WIRE RIGHT TURN IND SEAT BELT IND SECURITY IND SECURITY IND SPLY VOLT SERIAL DATA SPEEDOMETER TACHOMETER TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRACTION OFF IND TRIP ODOMETER TRIP RESET UP SHIFT IND VF DISPLAY TRIP WHT WIRE

A/T SHIFT LOCK CONTROL SOLENOID (A/T) (AT GEAR SELECTOR) BATTERY BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRN WIRE BRN/WHT WIRE COUPE COUPE, SEDAN DIMMER LOW REF DIMMER SIG DK GRN WIRE DRIVER DOOR LOCK SWITCH DRIVER HEATED SEAT SWITCH (W/ FRONT HEATED SEATS) DRIVER OUTSIDE REARVIEW MIRROR SWITCH WINDOW SWITCH GROUND PK LMP RLY CTRL GRY WIRE HAZARD SWITCH TRACTION CONTROL SWITCH HOT AT ALL TIMES HVAC CONTROL MODULE (CENTER OF DASH, BELOW RADIO) I/P DIMMER SWITCH INSTRUMENT PANEL CLUSTER (IPC) FOG LAMP SWITCH (DELUXE FOG LAMP) INT LIGHT FUSE 27 LEFT STEERING WHEEL CONTROL SWITCH LOGIC PARK LAMP PCB RELAY PASSENGER DOOR LOCK SWITCH PASSENGER HEATED SEAT SWITCH (W/ FRONT HEATED SEATS) PASSENGER WINDOW SWITCH PK LMP SUPPLY PK LMP SW SIG PNL LMPS SUPPLY PPL PRK LAMP FUSE RIGHT STEERING WHEEL CONTROL SWITCH SEDAN SWC BKLT FUSE 28 TURN SIGNAL/ MULTI-FUNCTION SWITCH PARK AUTO HEAD OFF UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) W/ POWER WINDOWS, REMOTE OUTSIDE MIRRORS W/O POWER WINDOWS, REMOTE OUTSIDE MIRRORS WHT WIRE