AIR CONDITIONING – Saturn LW300 2002 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Saturn LW300 2002

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Saturn LW300 2002:

52

• (info not avail)
• (on driver's side of front grille) outside air temperature sensor
• (on top of dash) solar load sensor
• +5v
• A/c
• A/c diode
• A/c fuse 10a
• A/c press
• A/c pressure sensor (in a/c high side pressure line)
• A/c relay
• A10
• A12
• Automatic climate control
• B11
• Base body ground
• Bcm fuse 10a
• Blower motor (on hvac assembly)
• Blower motor speed control module (on front of hvac assembly)
• Body control module (bcm) (mounted to top of glove box)
• C11
• Can high
• Can low
• Center console ground
• Clean ground
• Clutch
• Computer data lines system
• Controls ign 1 fuse 10a
• Cool fan 1 fuse 30a
• Cool fan 2 fuse 30a
• D10
• Defogger system
• Engine control module (ecm) (top right rear of engine)
• Engine controls system
• Hot at all times
• Hot in run
• Hot in run or start
• Ign 3 fuse 10a
• Left instrument panel fuse block (lipfb) (behind left kick panel)
• Mode door actuator (on hvac assembly)
• Nca
• Pnk
• Power distribution system
• Rear body ground splice pack
• Recirc door actuator (on hvac assembly)
• Red
• Return
• Serial data
• Tan
• Temp control actuator (on right end of hvac assembly)
• Underhood fuse block (uhfb) (left side of engine compt)
• W/ rke
• W/o rke

Automatic A/C Wiring Diagram (2 of 2) for Saturn LW300 2002

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Saturn LW300 2002:

23

• A12
• Clean ground
• Coolant flow pump fuse 10a
• Cooling fan control module (near battery)
• D8 c1
• Engine control module (ecm) (top right rear of engine)
• Engine cooling fan 1 (puller) (behind radiator)
• Engine cooling fan 2 (pusher) (on front of a/c condenser)
• F12
• F6 c1
• Fan 1 cntrl
• Fan 2 cntrl
• Heater water pump (on right side of engine)
• Left forward lamp ground
• Left forward lamp splice pack
• Nca
• Pnk
• Red
• Relay energized in high fan speed
• Relay energized in low & high fan speed
• Relay energized in low fan speed
• Relay energized in medium fan speed
• Underhood fuse block (uhfb) (left side of engine compt)

Compressor Wiring Diagram, with Auto A/C for Saturn LW300 2002

List of elements for Compressor Wiring Diagram, with Auto A/C for Saturn LW300 2002:

26

• +5v
• A/c clutch
• A/c diode
• A/c fuse 10a
• A/c press
• A/c pressure sensor (in a/c high side pressure line)
• A/c relay
• A10
• A12
• Automatic climate control
• B11
• Body control module (bcm) (mounted to top of glove box)
• Can high
• Can low
• Clean ground
• Computer data lines system
• D10
• Eng cntl 1 fuse 10a
• Engine control module (ecm) (top right rear of engine)
• Engine controls system
• Hot at all times
• Hot in run
• Left instrument panel fuse block (behind left kick panel)
• Return
• Serial data
• Tan

Compressor Wiring Diagram, with Manual A/C for Saturn LW300 2002

List of elements for Compressor Wiring Diagram, with Manual A/C for Saturn LW300 2002:

37

• +5v
• A/c clutch
• A/c diode
• A/c fuse 10a
• A/c on led
• A/c on/off
• A/c press
• A/c pressure sensor (in a/c high side pressure line)
• A/c relay
• A/c request
• A/c switch
• A10
• A12
• B11
• Base body ground
• Body control module (bcm) (mounted to top of glove box)
• C11
• C12
• Can high
• Can low
• Clean ground
• D10
• Eng cntl 1 fuse 10a
• Engine control module (ecm) (top right rear of engine)
• Engine controls system
• Hot at all times
• Hot in run or start
• Hvac control head
• Hvac fan switch
• Ign 3 relay (energized in run)
• Left instrument panel fuse block (behind left kick panel)
• Off
• Return
• Right body ground splice pack
• Tan
• W/ rke
• W/o rke

Manual A/C Wiring Diagram (1 of 2) for Saturn LW300 2002

List of elements for Manual A/C Wiring Diagram (1 of 2) for Saturn LW300 2002:

66

• (top right rear of engine) engine control module (ecm)
• +5v
• A/c clutch
• A/c diode
• A/c fuse 10a
• A/c on led
• A/c on/off input
• A/c press
• A/c pressure sensor (in a/c high side pressure line)
• A/c relay
• A/c request input
• A/c request output
• A/c switch
• A1 c1
• A10
• A12
• B11
• Base body ground
• Blower motor (on hvac assembly)
• Blower motor resistors (right side of hvac module)
• Body control module (bcm) (mounted to top of glove box)
• C11 c2
• C12 c2
• C2 d10
• Can high
• Can low
• Center console ground
• Clean ground
• Def
• Def mode input
• Defogger system
• Dim illumination
• Eng cntl 1 fuse 10a
• Engine controls system
• F7 c2
• Fan 1 ctrl
• Fan 2 ctrl
• Fresh output
• Gnd
• Grd
• Hot at all times
• Hot in run or start
• Hvac control head
• Hvac fan switch
• Hvac in-line
• Ign
• Ign 3 fuse 10a
• Ign 3 relay (energized in run)
• Interior lights system
• Left instrument panel fuse block (lipfb) (behind left kick panel)
• Mode door motor (on hvac module)
• Mode input
• Off
• Pnk
• Rear defogger switch
• Recirc door motor (on hvac assembly)
• Recirc on indicator
• Recirc on input
• Recirc output
• Return
• Right body ground splice pack
• Tan
• Underhood fuse block
• Vent
• W/ rke
• W/o rke

Manual A/C Wiring Diagram (2 of 2) for Saturn LW300 2002

List of elements for Manual A/C Wiring Diagram (2 of 2) for Saturn LW300 2002:

24

• A12
• Clean ground
• Controls ign 1 fuse 10a
• Cool fan 1 fuse 30a
• Cool fan 2 fuse 30a
• Coolant flow pump fuse 10a
• Cooling fan control module (near battery)
• Engine cooling fan 1 (puller) (behind radiator)
• Engine cooling fan 2 (pusher) (on front of a/c condenser)
• F12
• F6 c1
• Heater water pump (on right side of engine)
• Hot at all times
• Hot in run or start
• Left forward lamp ground
• Left forward lamp splice pack
• Nca
• Pnk
• Red
• Relay energized in high fan speed
• Relay energized in low & high fan speed
• Relay energized in low fan speed
• Relay energized in medium fan speed
• Underhood fuse block (uhfb) (left side of engine compt)