AIR CONDITIONING – Chevrolet Cobalt LS 2008 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

2.2L VIN F

2.2L VIN F, Compressor Wiring Diagram for Chevrolet Cobalt LS 2008

List of elements for 2.2L VIN F, Compressor Wiring Diagram for Chevrolet Cobalt LS 2008:

• 5v ref
• A/c clutch fuse 10a
• A/c clutch relay
• A/c compressor clutch (left front of engine)
• A/c compressor clutch diode
• A/c refrigerant pressure sensor (in right front of engine compt, on a/c line, near compressor)
• A/c req sig
• A/c request indicator
• A/c request sig
• A/c request switch
• Batt
• Body control module (bcm) (under center dash, on right side of center console)
• Computer data lines system
• Ect sig
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• Engine coolant temperature (ect) sensor (rear of engine, near exhaust manifold)
• G101 (left side of engine compt, under coolant reservoir)
• G203 (behind right side of dash)
• Gnd
• 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 10a
• Hvac/pk3 + fuse 10 10a
• Ign 1 voltage
• Logic
• Low ref
• Pnk
• Power distribution system
• Press sens sig
• Rly ctrl
• Serial data
• Tan
• Underhood fuse block (in engine compt, next to left strut tower)
• X3 f2
• X5 a4

2.2L VIN F, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2008

List of elements for 2.2L VIN F, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2008:

• (in hvac jumper harness, 4.9 cm from hvac control assembly) j261
• 5 volt ref
• A/c req sig
• A/c request indicator
• A/c request sig
• A/c request switch
• Air temp dr cntrl
• Air temp dr pos
• Batt
• Bcm 3 fuse 30a
• 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)
• Close recir door
• Computer data lines system
• Defogger system
• Fresh air indicator
• G203 (behind right side of dash)
• Gnd
• Ground
• High
• Hot at all times
• Hot w/ run/ crank relay energized
• Hvac control module (center of dash, below radio)
• Hvac relay
• Hvac/ ip ign fuse 16 10a
• Hvac/pk3 + fuse 10 10a
• Ign 1 voltage
• Interior lights system
• Logic
• Low
• Mode door cntrl
• Mode door pos sig
• Mode switch
• Off
• Open recir door
• Pnk
• Power distribution system
• R defog relay cntrl
• R defog switch sig
• Recir- culation indicator
• Recir- culation switch
• Run/ crank relay control
• Serial data
• Tan
• Temperature control switch
• Underhood fuse block (in engine compt, next to left strut tower)
• X4 c2

2.2L VIN F, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2008

List of elements for 2.2L VIN F, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2008:

• 5v ref
• A/c cltch fuse 10a
• A/c clutch relay
• A/c compressor clutch (left front of engine)
• A/c compressor clutch diode
• A/c refrigerant pressure sensor (right front of engine compt, on a/c line, near compressor)
• A1 x5
• A11
• Air temperature actuator (center of dash, left side of hvac module)
• Computer data lines system
• Cooling fan 1 fuse 30a
• Cooling fan 1 relay
• Cooling fan 2 fuse 30a
• Cooling fan 2 relay
• E10
• Ect sig
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• Engine coolant temperature (ect) sensor (rear of engine, near exhaust manifold)
• Engine cooling fan (front of engine compt, attached to radiator)
• F10
• G101 (left side of engine compt, under coolant reservoir)
• G111 (front of engine compt, near cooling fans)
• Hot at all times
• Hot in run or start
• Low ref
• Mode actuator (center of dash, left side of hvac module)
• Pnk
• Press sens sig
• Recirculation actuator (right side of dash, above blower motor)
• Rly ctrl
• Serial data
• Tan
• Underhood fuse block (in engine compt, next to left strut tower)
• X3 f2
• X5 a4

2.4L VIN B

2.4L VIN B, Compressor Wiring Diagram for Chevrolet Cobalt LS 2008

List of elements for 2.4L VIN B, Compressor Wiring Diagram for Chevrolet Cobalt LS 2008:

• 5v ref
• A/c cltch fuse 10a
• A/c clutch relay
• A/c compressor clutch (left front of engine)
• A/c compressor clutch diode
• A/c refrigerant pressure sensor (right front of engine compt, on a/c line, near compressor)
• A/c req sig
• A/c request indicator
• A/c request sig
• A/c request switch
• A4 x5
• Batt
• Body control module (bcm) (under center dash, on right side of center console)
• Computer data lines system
• Ect sig
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• Engine coolant temperature (ect) sensor (rear, left side of engine, below exhaust)
• G101 (left side of engine compt, under coolant reservoir)
• G203 (behind right side of dash)
• Gnd
• 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 10a
• Hvac/pk3 fuse 10 10a
• Ign 1 voltage
• Logic
• Low ref
• Pnk
• Power distribution system
• Press sens sig
• Rly ctrl
• Serial data
• Tan
• Underhood fuse block (in engine compt, next to left strut tower)
• X3 f2

2.4L VIN B, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2008

List of elements for 2.4L VIN B, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2008:

• (in hvac jumper harness, 4.9 cm from hvac control assembly) j261
• 5 volt ref
• A/c req sig
• A/c request indicator
• A/c request sig
• A/c request switch
• Air temp dr cntrl
• Air temp dr pos
• Batt
• Bcm 3 fuse 30a
• 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)
• C2 x4
• Close recir door
• Computer data lines system
• Defogger system
• Fresh air indicator
• G203 (behind right side of dash)
• Gnd
• Ground
• High
• Hot at all times
• Hot w/ run/ crank relay energized
• Hvac control module (center of dash, below radio)
• Hvac relay
• Hvac/ ip ign fuse 16 10a
• Hvac/pk3 + fuse 10 10a
• Ign 1 voltage
• Interior lights system
• Logic
• Low
• Mode door cntrl
• Mode door pos sig
• Mode switch
• Off
• Open recir door
• Pnk
• Power distribution system
• R defog relay cntrl
• R defog switch sig
• Recir- culation indicator
• Recir- culation switch
• Run/ crank relay control
• Serial data
• Tan
• Temperature control switch
• Underhood fuse block (in engine compt, next to left strut tower)

2.4L VIN B, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2008

List of elements for 2.4L VIN B, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2008:

• 5v ref
• A/c cltch fuse 10a
• A/c cltch relay
• A/c compressor clutch (left front of engine)
• A/c compressor clutch diode
• A/c refrigerant pressure sensor (right front of engine compt, on a/c line, near compressor)
• A11
• A4 x5
• Air temperature actuator (center of dash, left side of hvac module)
• Computer data lines system
• Cooling fan (front of engine compt, attached to radiator)
• Cooling fan 1 fuse 30a
• Cooling fan 1 relay
• Cooling fan 2 fuse 30a
• Cooling fan 2 relay
• E10
• Ect sig
• Engine
• Engine control module (ecm) (left side of engine compt, in front of underhood fuse block)
• Engine coolant temperature (ect) sensor (rear, left side of engine, below exhaust)
• Engine cooling fan resistor (lower left radiator shroud)
• F10
• F2 x3
• G101 (in left side of engine compt, under coolant reservoir)
• G111 (front of engine compt, near cooling fans)
• Hot at all times
• Hot in run or start
• Low ref
• Mode actuator (center of dash, left side of hvac module)
• Pnk
• Press sens sig
• Recirculation actuator (right side of dash, above blower motor)
• Rly ctrl
• Serial data
• Tan
• Underhood fuse block (in engine compt, next to left strut tower)