Chevrolet Cobalt I (2004-2010) hot in run or start 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

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

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

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

A/T BACKUP LAMP SWITCH (SIDE OF TRANSAXLE CASE) BCKUP FUSE BLK WIRE BREAKOUT) COUPE HOT IN RUN OR START INSIDE REARVIEW MIRROR LEFT BACKUP LAMP LEFT BACKUP LAMP RIGHT BACKUP LAMP LT GRN WIRE M/T PARK/ NEUTRAL POSITION (PNP) SWITCH (REAR OF ENGINE, ON TOP OF TRANSMISSION) PNK WIRE RIGHT BACKUP LAMP SEDAN UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) W/ ONSTAR

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

3 PNK WIRE BLK/WHT WIRE BRN WIRE CASE GROUND DK GRN WIRE DRIVER SEAT BELT PRETENSIONER (LEFT "B" PILLAR) GROUND GRY WIRE GRY/ORG WIRE GRY/WHT WIRE HIGH CONTROL LOW CONTROL HOT IN RUN OR START HVAC/ IP IGN FUSE 16 IND INFLATABLE RESTRAINT INFLATABLE RESTRAINT STEERING WHEEL MODULE LOGIC LOW CONTROL PNK LOW CONTROL HIGH CONTROL HIGH CONTROL LOW CONTROL WIRE LT BLU WIRE LT BLU/ORG WIRE ORG/ WIRE PASSENGER SEAT BELT PRETENSIONER (RIGHT "B" PILLAR) PNK IGNITION 1 VOLTAGE WIRE PNK OCCUPANT SENS SIG WIRE PNK PNK WIRE PNK WIRE PPL PPL PNK WIRE PPL SHORTING BAR PPL/WHT WIRE RED/WHT WIRE RIGHT SEAT BELT SW SIG SENSOR SIGNAL LOW REFERENCE SENSOR SIGNAL SENSOR VOLTAGE SENSOR VOLTAGE SENSOR SIGNAL SHORTING BAR STAGE 1 STAGE 2 STEERING WHEEL MODULE COIL (ON STEERING COLUMN, BEHIND STEERING WHEEL) TAN WIRE TAN/ORG WIRE TAN/WHT WIRE W/ LEFT, RIGHT ROOF SIDE INFLATABLE SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

1-2 SHIFT SOLENOID (1-2 SS) VALVE 2-3 SHIFT SOLENOID (2-3 SS) VALVE ACC VOLTAGE AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION FLUID TEMPERATURE SENSOR AUTOMATIC TRANSMISSION INPUT SHAFT SPEED (ISS) SENSOR 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 BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ECM/ TCM FUSE 25 ECM/ TRANS FUSE GMLAN BUS (-) GMLAN BUS (+) GMLAN BUS (-) GMLAN BUS (+) SW SIG D PC SOL HI CTRL VSS HIGH SIG STOP LMP SW SIG GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START ISS LOW SIG LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PARK/NEUTRAL POSITION (PNP) SWITCH (REAR OF ENGINE, ON TOP OF TRANSMISSION) PNK WIRE PPL PPL VSS LOW SIG PC SOL VLV LO CTRL RED WIRE RED/WHT WIRE SW SIG A TFT SENS LOW REF IGN 1 VOLTAGE B(+) TFP SW SIG C SW SIG B SW SIG C SW SOL VALVE CTRL TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC RELEASE SW SIG TFP SW SIG B TFT SENS SIG TRANSMISSION CONTROL MODULE UNDERHOOD FUSE BLOCK (IN ENGINE COMPARTMENT, NEXT TO LEFT STRUT TOWER) VEHICLE SPEED SENSOR (VSS) VOL CTRL WHT WIRE YEL WIRE YEL/BLK WIRE