Chevrolet Cobalt I (2004-2010) red Wiring diagrams

A/C REQUEST INDICATOR A/C REQUEST SIG A/C REQUEST SWITCH BCM 3 FUSE BLK WIRE BLK/WHT WIRE BLOWER MOTOR (UNDER RIGHT SIDE OF DASH) BLOWER MOTOR RESISTOR (UNDER RIGHT SIDE OF DASH, NEXT TO BLOWER MOTOR) BLOWER MOTOR SWITCH BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRN WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE FRESH AIR INDICATOR FUSE 10 GND GND MODE DOOR CNTRL AIR TEMP DR CNTRL 5 VOLT REF OFF GROUND GRY WIRE HOT AT ALL TIMES HOT W/ RUN/ CRANK RELAY ENERGIZED HVAC CONTROL MODULE (CENTER OF DASH, BELOW RADIO) HVAC RELAY 30 HVAC/ IP IGN FUSE 16 LAMP SUPPLY IGN 1 VOLTAGE LOGIC LOGIC RUN/ CRANK RELAY CONTROL LOW OFF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE DOOR POS SIG MODE SWITCH ORG/ WIRE PNK PNK WIRE PNK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM R DEFOG SWITCH SIG R DEFOG RELAY CNTRL A/C REQ SIG GND BATT RECIR- CULATION INDICATOR RECIR- CULATION SWITCH RED WIRE RED/WHT WIRE SERIAL DATA TAN WIRE TAN/BLK WIRE TEMPERATURE CONTROL SWITCH UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) WHT WIRE WHT/BLK WIRE YEL WIRE

A/C REQUEST INDICATOR A/C REQUEST SIG A/C REQUEST SWITCH BCM 3 FUSE BLK WIRE BLK/WHT WIRE BLOWER MOTOR (UNDER RIGHT SIDE OF DASH) BLOWER MOTOR RESISTOR (UNDER RIGHT SIDE OF DASH, NEXT TO BLOWER MOTOR) BLOWER MOTOR SWITCH BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRN WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE FRESH AIR INDICATOR FUSE 10 GND GND MODE DOOR CNTRL AIR TEMP DR CNTRL 5 VOLT REF OFF GROUND GRY WIRE HOT AT ALL TIMES HOT W/ RUN/ CRANK RELAY ENERGIZED HVAC CONTROL MODULE (CENTER OF DASH, BELOW RADIO) HVAC RELAY 30 HVAC/ IP IGN FUSE 16 LAMP SUPPLY IGN 1 VOLTAGE LOGIC LOGIC RUN/ CRANK RELAY CONTROL LOW OFF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE DOOR POS SIG MODE SWITCH ORG/ WIRE PNK PNK WIRE PNK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM R DEFOG SWITCH SIG R DEFOG RELAY CNTRL A/C REQ SIG GND BATT RECIR- CULATION INDICATOR RECIR- CULATION SWITCH RED WIRE RED/WHT WIRE SERIAL DATA TAN WIRE TAN/BLK WIRE TEMPERATURE CONTROL SWITCH UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) WHT WIRE WHT/BLK WIRE YEL WIRE

ABS 2 FUSE ABS 3 FUSE ABS FUSE BAT POSITIVE VOLT BLK WIRE BRAKE PRESSURE MODULATOR VALVE BRN WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE HOT AT ALL TIMES HOT IN RUN OR START LEFT FRONT WHEEL SPEED SENSOR (WSS) (INSIDE LEFT FRONT WHEEL HUB) LF WHEEL SPEED REF LF WHEEL SPEED SIG LT BLU WIRE ORG/ WIRE PNK WIRE PUMP MOTOR PUMP MOTOR CONTROL RED WIRE RED/BLK WIRE RED/WHT WIRE RF WHEEL SPEED SENS SIG RF WHEEL SPEED SENS LO REF RIGHT FRONT WHEEL SPEED SENSOR (WSS) (INSIDE RIGHT FRONT WHEEL HUB) RIGHT REAR WHEEL SPEED SENSOR (WSS) (INSIDE RIGHT REAR WHEEL HUB) RR WHEEL SPEED SEN SIG RR WHEEL SPD SEN REF TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) WHT WIRE YEL WIRE

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

12 VOLT 12 VOLT REF 5 VOLT REF 5 VOLT REF LOW REF 5-VOLT ABS 2 FUSE ABS 3 FUSE ABS FUSE BAT POSITIVE VOLT RF WHEEL SPEED SENS LO REF RF WHEEL SPEED SENS SIG BLK WIRE BRAKE PRESSURE MODULATOR VALVE BRN WIRE CAN BUS HIGH SERIAL CAN BUS HIGH SERIAL DATA CAN BUS LOW SERIAL DATA CAN BUS LOW SERIAL COMPUTER DATA LINES (LEFT SIDE OF SYSTEM ENGINE COMPT, UNDER COOLANT RESERVOIR) DK BLU WIRE DK GRN WIRE GROUND GROUND PUMP MOTOR GRY WIRE GRY/BLK WIRE HIGH SERIAL CAN BUS HOT AT ALL TIMES HOT IN RUN OR START LEFT FRONT WHEEL SPEED SENSOR (WSS) (INSIDE LEFT FRONT WHEEL HUB) LEFT REAR WHEEL SPEED SENSOR (WSS) (INSIDE LEFT REAR WHEEL HUB) LF WHEEL SPEED SIG LF WHEEL SPEED REF LOW REF LOW SERIAL CAN BUS LR WHEEL SPD SEN SIG LR WHEEL SPD SENS LO REF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK IGN 1 VOLT WIRE PNK WIRE PNK/BLK WIRE PUMP MOTOR CONTROL RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT FRONT WHEEL SPEED SENSOR (WSS) (INSIDE RIGHT FRONT WHEEL HUB) RIGHT REAR WHEEL SPEED SENSOR (WSS) (INSIDE RIGHT REAR WHEEL HUB) STEERING ANGLE SENSOR STEERING WHEEL POSITION SEN TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) WHT WIRE YAW, LATERAL ACCELEROMETER SENSOR YEL WIRE

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 VOLTAGE BAT POS VOLTAGE BAT POS VOLTAGE RAP FUSE SPLY VOLTAGE RUN/CRANK IGN 1 VOLTAGE IGN 1 VOLTAGE BATTERY POSITIVE VOLTAGE BCM 2 FUSE BCM 3 FUSE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRN WIRE COURTESY LAMP SPLY VOLTAGE DOOR LOCK ACTUATOR LOCK CTRL DK BLU/WHT WIRE DK GRN WIRE DOOR LOCK ACTUATOR LOCK CTRL (SEDAN) DOOR LOCK ACTUATOR UNLOCK CTRL DOOR LOCK ACTUATOR UNLOCK CTRL DOOR LOCKS SYSTEM ENGINE CONTROLS SYSTEM TRANSMISSIONS SYSTEM EXTERIOR LIGHTS SYSTEM DOOR LOCKS SYSTEM EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM FUSE 8 GRY WIRE HOT AT ALL TIMES I/P LAMP SPLY VOLTAGE IGN SW LOGIC LR STOP/TURN LAMP SUPPLY VOLTAGE COURTESY LAMP CTRL ORG/ WIRE PARK LAMP SPLY VOLTAGE PNK PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM POWER DISTRIBUTION SYSTEM POWER TOPS SYSTEM POWER WINDOWS SYSTEM RAP FUSE SPLY VOLTAGE RED WIRE RED/BLK WIRE RED/WHT WIRE RR STOP/TURN LAMP SUPPLY VOLTAGE DRIVER DR LOCK ACTUATOR UNLOCK CTRL RUN/CRANK IGN 1 VOLTAGE SEATS SYSTEM SEDAN SOUND SYSTEMS SUPPLEMENTAL RESTRAINTS SYSTEM TAN WIRE TO BCM (DIAGRAM 3 OF 4) UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) WINDSHIELD WASHER PMP CTRL WIPER/WASHER SYSTEM YEL WIRE

B(+) BLK WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) BRN WIRE CLASS 2 SERIAL DATA COMPT, NEXT TO LEFT STRUT TOWER) COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM ELECTRIC POWER STEERING (EPS) MOTOR EPS FUSE EPS/ STR WHL CNTRL FUSE 19 GROUND HOT AT ALL TIMES HOT IN RUN OR START IGNITION 1 LOGIC PNK WIRE POWER STEERING CONTROL MODULE (PSCM) RED WIRE RED/BLK WIRE STEERING COLUMN ASSEMBLY STEERING SHAFT TORQUE SENSOR TAN WIRE UNDERHOOD FUSE BLOCK (IN ENGINE 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 PNK WIRE ABS FUSE ABS 3 FUSE AUXILIARY POWER OUTLET BACK-UP LAMP SWITCH BAT+ BATTERY BLK WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) CHMSL FUSE CHMSL RELAY CIGAR LIGHTER CNSTR VENT FUSE COOLING FAN 1 FUSE COOLING FAN 1 RELAY COOLING FAN 2 FUSE COOLING FAN 2 RELAY CRANK FUSE CRANK RELAY DATA LINK CONNECTOR (DLC) DLC FUSE ECM/ TRANS FUSE BACK UP FUSE ABS 2 FUSE ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) EPS FUSE FUSE FUSIBLE LINK GENERATOR HVAC RELAY INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INLINE FUSE IP IGN FUSE MIR/ UGDO FUSE OUTLET FUSE OUTSIDE REARVIEW MIRROR SWITCH PNK WIRE POWER STEERING CONTROL MODULE (PSCM) REAR DEFOG FUSE WIPER FUSE REAR WPR WPR ON/OFF LO/HI DEFOG RELAY RELAY RELAY RED WIRE RUN/ CRANK RELAY RUN/ CRANK RELAY COIL CTRL SDM FUSE STARTER TO BODY CONTROL MODULE (DIAGRAM 2 OF 3) TO BODY CONTROL MODULE (DIAGRAM 3 OF 3) TO POWER- TRAIN RELAY (DIAGRAM 2 OF 3) W/ ACTIVE BRAKE W/O ACTIVE BRAKE WHT WIRE YEL WIRE