Chevrolet Cobalt I (2004-2010) tan/blk Wiring diagrams

30 43 44 25 RLY CTRL SERIAL DATA SERIAL DATA PRESS SENS SIG 58 4 ECT SIG LOW REF A/C CLUTCH FUSE A/C CLUTCH RELAY A/C COMPRESSOR CLUTCH (LEFT FRONT OF ENGINE) A/C COMPRESSOR CLUTCH DIODE A/C REQ SIG GND BATT IGN 1 VOLTAGE A/C REQUEST INDICATOR A/C REQUEST SIG A/C REQUEST SWITCH BLK WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE (ECT) SENSOR FUSE 10 LOGIC GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START HOT W/ RUN/ CRANK RELAY ENERGIZED HVAC CONTROL MODULE (CENTER OF DASH, BELOW RADIO) HVAC/ IP IGN FUSE 16 LOGIC LOW REF LT GRN WIRE ORG/BLK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL/WHT WIRE RED/WHT WIRE SERIAL DATA TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) 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

58 4 ECT SIG LOW REF A/C CLTCH FUSE A/C COMPRESSOR CLUTCH DIODE A/C CLUTCH RELAY A/C COMPRESSOR CLUTCH (LEFT FRONT OF ENGINE) AIR TEMPERATURE ACTUATOR (CENTER OF DASH, LEFT SIDE OF HVAC MODULE) BLK WIRE BLK/WHT WIRE BLU WIRE COMPUTER DATA LINES SYSTEM COOLING FAN 1 FUSE COOLING FAN 1 RELAY COOLING FAN 2 FUSE COOLING FAN 2 RELAY DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE (ECT) SENSOR (REAR OF ENGINE, NEAR EXHAUST MANIFOLD) ENGINE COOLING FAN (FRONT OF ENGINE COMPT, ATTACHED TO RADIATOR) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START LOW REF LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE ACTUATOR (CENTER OF DASH, LEFT SIDE OF HVAC MODULE) ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/WHT WIRE PPL/WHT WIRE RECIRCULATION ACTUATOR (RIGHT SIDE OF DASH, ABOVE BLOWER MOTOR) TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) WHT/BLK WIRE YEL WIRE

43 44 25 SERIAL DATA SERIAL DATA PRESS SENS SIG 58 4 ECT SIG LOW REF A/C CLUTCH RELAY A/C COMPRESSOR CLUTCH (LEFT FRONT A/C COMPRESSOR CLUTCH DIODE A/C REQ SIG GND BATT IGN 1 VOLTAGE A/C REQUEST INDICATOR A/C REQUEST SIG A/C REQUEST SWITCH AC CLTCH FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH, ON RIGHT SIDE OF CENTER CONSOLE) COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE FUSE 10 GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START HOT W/ RUN/ CRANK RELAY ENERGIZED HVAC CONTROL MODULE (CENTER OF DASH, BELOW RADIO) HVAC/ IP IGN FUSE 16 LOGIC LOW REF LT GRN WIRE OF ENGINE) ORG/BLK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM RED/WHT WIRE RLY CTRL SERIAL DATA TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) 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

49 30 RLY CTRL RLY CTRL 58 4 ECT SIG A/C CLTCH RELAY A/C COMPRESSOR CLUTCH (LEFT FRONT A/C COMPRESSOR CLUTCH DIODE AC CLTCH FUSE AIR TEMPERATURE ACTUATOR (CENTER OF DASH, LEFT SIDE OF HVAC MODULE) BLK WIRE BLK/WHT WIRE BLU WIRE COMPUTER DATA LINES SYSTEM COOLING FAN 1 FUSE COOLING FAN 1 RELAY COOLING FAN 2 FUSE COOLING FAN 2 RELAY DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE ENGINE COOLING FAN (FRONT OF ENGINE COMPT, ATTACHED TO RADIATOR) ENGINE COOLING FAN RESISTOR (LOWER LEFT RADIATOR SHROUD) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START LOW REF LOW REF RLY CTRL SERIAL DATA SERIAL DATA PRESS SENS SIG 5 43 44 25 LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE ACTUATOR (CENTER OF DASH, LEFT SIDE OF HVAC MODULE) OF ENGINE) ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/WHT WIRE RECIRCULATION ACTUATOR (RIGHT SIDE OF DASH, ABOVE BLOWER MOTOR) TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) 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

2.2L 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