AIR CONDITIONING – Saturn Aura XE 2008 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Saturn Aura XE 2008

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Saturn Aura XE 2008:

• (2.4l (vin 5)) (in engine harness) b
• (2.4l (vin b): left rear of engine) (3.5l: rear of engine, above oil filter) (2.4l (vin 5): rear of engine, near pnp switch) g106
• (in engine harness) (2.4l (vin 5)) j153
• 2.4l (vin b)
• 3.5l
• 5 volt ref
• 87a
• A/c clu fuse 1 10a
• A/c clutch relay
• A/c compressor clutch (lower left, front of engine, part of a/c compressor)
• A/c request ind
• A/c request switch
• A11 x2
• A2 x1
• A5 x2
• Air temp dr pos sig
• Ambient air temperature sensor (left front impact bar, behind grille)
• Auto
• B10
• B10 x2
• Bas pmp fuse 20a
• Battery positive
• Computer data lines system
• Cool fan 1 fuse 17 30a
• Cool fan 2 fuse 18 30a
• Cool/ fan 1 relay
• Cool/ fan 2 relay
• Cool/fan ser/par relay
• Defog ind
• Defog switch
• Door position sig
• Dr ctrl a
• Dr ctrl b
• E1 x2
• E8 x1
• Except 2.4l (vin b)
• Except 3.5l
• F3 x1
• Fresh air ind
• Fresh air switch
• G106 (2.4l (vin b): left rear of engine) (3.5l: rear of engine, above oil filter) (2.4l (vin 5): rear of engine, near pnp switch)
• G201 (under dash, right side of console, near floor)
• Gnd
• Heater coolant pump (middle rear of engine)
• High
• Hot at all times
• Hot w/ pwr/trn relay energized
• Hvac control module
• Ign 3 vol
• Left cooling fan (left rear of radiator)
• Left engine cooling fan diode (2.4l (vin 5))
• Logic
• Low blower motor switch
• Low ref
• Lower air temperature sensor (behind right console access panel)
• Lower air temperature switch
• Mode dr pos sig
• Mode switch
• Off
• Pnk
• Power distribution system
• Recir door ctrl
• Recirculation ind
• Recirculation switch
• Req sig
• Right cooling fan (right rear of radiator)
• Right engine cooling fan diode (2.4l (vin 5))
• Serial data
• Signal
• Starter generator control module (sgcm) (left front engine compt)
• Tan
• Underhood fuse block (left side of engine compt, next to battery)
• Upper air temperature sensor (inside left center a/c duct)
• Upper air temperature switch
• X1 e3
• X3 b9

Automatic A/C Wiring Diagram (2 of 2) for Saturn Aura XE 2008

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Saturn Aura XE 2008:

• 2.4l (vin b)
• 3.5l
• 3.6l
• 3.6l & 2.4l (vin5)
• 5v ref
• A/c refrigerant pressure sensor (on a/c line)
• Air temperature actuator (center of hvac unit)
• Ambient air temp sens sig
• Battery positive
• Blower motor (right side of hvac unit)
• Blower motor control module (bottom of blower motor)
• Body control module (bcm) (center console, left side near dash)
• Clu rly ctrl
• Computer data lines system
• Data link connector (dlc) (lower left of dash)
• E2 x4
• Ect sens sig
• Engine control module (ecm) (2.4l (vin 5): left side of engine compt, behind battery) (3.6l& 3.4l: left side of engine compt, front of battery)
• Engine coolant temperature (ect) sensor (2.4l: right side of engine, below camshaft position exhaust sensor) (3.6l: left side of engine, behind generator) (3.5l: in cylinder head, below coolant reservoir)
• Except 3.6l
• G203 (under dash, right side of console, near floor)
• Gnd
• High spd gmlan
• High spd rly ctrl
• High speed gmlan serial data +
• High speed gmlan serial data -
• Hot at all times
• Hvac ctrl (batt) fuse 10a
• Hvac ctrl (ign) fuse 10a
• Logic
• Low ref
• Low spd rly ctrl
• Low speed gmlan serial data
• Mode actuator (on left of hvac unit)
• Recirculation actuator (top right of hvac unit)
• Req sig
• Run relay
• Run rly ctrl
• Sens sig
• Spd ctrl
• Sply voltage
• Tan

Compressor Wiring Diagram, with Auto A/C for Saturn Aura XE 2008

List of elements for Compressor Wiring Diagram, with Auto A/C for Saturn Aura XE 2008:

• (on a/c line) a/c refrigerant pressure sensor
• 2.4l (vin b)
• 3.5l
• 3.6l & 2.4l (vin5)
• 5v ref
• A/c clu fuse 1 10a
• A/c clutch relay
• A/c compressor clutch (lower left front of engine, part of a/c compressor)
• Body control module (bcm) (center console, left side near dash)
• C1 e8
• C2 e1
• Clu rly ctrl
• Computer data lines system
• Engine control module (ecm) (2.4l (vin 5): left side of engine compt, behind battery) (3.5l & 3.6l: left side of engine compt, front of battery)
• G106 (2.4l (vin b): left rear of engine) (3.5l: rear of engine, above oil filter) (2.4l (vin 5): rear of engine, near pnp switch)
• High spd gmlan
• High speed gmlan serial data
• Hot at all times
• Hot w/ pwr/trn relay energized
• Hvac control module
• Logic
• Low ref
• Low speed gmlan serial data
• Lower air
• Mode switch
• Sens sig
• Serial data
• Switch temperature upper air
• Tan
• Temperature switch
• Underhood fuse block (left side of engine compt, next to battery)

Compressor Wiring Diagram, with Manual A/C for Saturn Aura XE 2008

List of elements for Compressor Wiring Diagram, with Manual A/C for Saturn Aura XE 2008:

• (on a/c line) a/c refrigerant pressure sensor
• 2.4l (vin b)
• 3.5l
• 3.6l & 2.4l (vin 5)
• 5v ref
• A/c clu fuse 1 10a
• A/c clutch relay
• A/c compressor clutch (lower left, front of engine, part of a/c compressor)
• A/c req sig
• A/c request ind
• A/c request switch
• Body control module (bcm) (center console, left side near dash)
• Clu rly ctrl
• Computer data lines system
• E1 x2
• E8 x1
• Engine control module (ecm) (2.4l (vin 5): left side of engine compt, behind battery) (3.5l & 3.6l: left side of engine compt, front of battery)
• G106 (2.4l (vin b): left rear of engine) (3.5l: rear of engine, above oil filter) (2.4l (vin 5): rear of engine, near pnp switch)
• High spd gmlan
• High speed gmlan serial data
• Hot at all times
• Hot w/ pwr/trn relay energized
• Hvac control module
• Logic
• Low ref
• Low speed gmlan serial data
• Mode switch
• Sens sig
• Tan
• Temperature control switch
• Underhood fuse block (left side of engine compt, next to battery)

Manual A/C Wiring Diagram (1 of 2) for Saturn Aura XE 2008

List of elements for Manual A/C Wiring Diagram (1 of 2) for Saturn Aura XE 2008:

• (in engine harness) (2.4l (vin 5)) j150
• (in engine harness) (2.4l (vin 5)) j153
• 2.4l (vin b)
• 3.5l
• 5 volt ref
• 87a
• A/c clu fuse 1 10a
• A/c clutch relay
• A/c compressor clutch (lower left, front of engine, part of a/c compressor)
• A/c req sig
• A/c request ind
• A/c request switch
• A10
• A11
• A11 x2
• A12
• Air temp dr pos sig
• Ambient air temperature sensor (left front impact bar, behind grille)
• B10
• B10 x2
• B11
• B12
• Batt
• Blower motor resistor assembly
• Blower motor switch
• Cool fan 1 fuse 17 30a
• Cool fan 2 fuse 18 30a
• Cool/ fan 1 relay
• Cool/ fan 2 relay
• Cool/fan ser/par relay
• Defog ind
• Defog switch
• Defogger system
• Dr ctrl a
• Dr ctrl b
• E8 x1
• Except 2.4l (vin b)
• Except 3.5l
• F3 x1
• Fresh air ind
• Fresh air switch
• G106 (2.4l (vin b): left rear of engine) (3.5l: rear of engine, above oil filter) (2.4l (vin 5): rear of engine, near pnp switch)
• G201 (under dash, right side of console, near floor)
• Ground
• Hot at all times
• Hot w/ pwr/trn relay energized
• Hvac control module
• Ign 3 vol
• Interior lights system
• Left cooling fan (left rear of radiator)
• Left engine cooling fan diode (2.4l (vin 5))
• Logic
• Low ref
• Mode dr pos sig
• Mode switch
• Recirculation ind
• Recirculation switch
• Right cooling fan (right rear of radiator)
• Right engine cooling fan diode (2.4l (vin 5))
• Tan
• Temperature control switch
• Underhood fuse block (left side of engine compt, next to battery)
• X1 a2
• X1 e3
• X2 e1
• X3 b9

Manual A/C Wiring Diagram (2 of 2) for Saturn Aura XE 2008

List of elements for Manual A/C Wiring Diagram (2 of 2) for Saturn Aura XE 2008:

• 2.4l (vin b)
• 3.5l
• 3.6l & 2.4l (vin 5)
• 5v ref
• A/c refrigerant pressure sensor (on a/c line)
• A/c req sig
• After blow
• Air temperature actuator (center of hvac unit)
• Ambient air temp sens sig
• Blower motor (right side of hvac unit)
• Body control module (bcm) (center console, left side near dash)
• Clu rly ctrl
• Computer data lines system
• Data link connector (dlc) (lower left of dash)
• E3 x4
• Ect sens sig
• Engine control module (ecm) (2.4l (vin 5): left side of engine compt, behind battery) (3.5l & 3.6l: left side of engine compt, front of battery)
• Engine coolant temperature (ect) sensor (3.5l: in cylinder head, below coolant reservoir) (3.6l: left side of engine, behind generator) (2.4l: right side of engine, below camshaft position exhaust sensor)
• Except 3.6l 3.6l
• G203 (under dash, right side of console, near floor)
• Ground
• High spd gmlan
• High spd rly ctrl
• High speed gmlan serial data +
• High speed gmlan serial data -
• Hot at all times
• Hvac blower fuse 20a
• Hvac blower high relay
• Hvac ctrl (batt) fuse 10a
• Hvac ctrl (ign) fuse 10a
• Logic
• Low ref
• Low spd rly ctrl
• Low speed gmlan serial data
• Mode actuator (on left of hvac unit)
• Recirculation actuator (top right of hvac unit)
• Run relay
• Run rly ctrl
• Sens sig
• Tan