AIR CONDITIONING – Buick LeSabre Custom 2000 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Buick LeSabre Custom 2000

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Buick LeSabre Custom 2000:

• (hvac harn, near hvac blower)
• (hvac harn, near hvac blower) s221
• (i/p harn, 6 cm from 30 pin in- line conn, near i/p)
• (lower right corner of engine compt, right front door pillar)
• 5v ref feed
• A10
• A11
• A12
• Air inlet actuator (under right side of dash, right of blower motor)
• Air mix act cntl
• Air mix act sig
• Amb air temp sig
• Amb light sens
• Ambient air temp sensor (on hood latch support)
• Battery
• Blwr sp cntrl
• C1 a1
• C11
• C12
• C13
• C3 a7
• C3 d12
• Computer data lines system
• D11
• D16
• Data line
• Driver air mix actuator (on left side of hvac module)
• G200 (lower front corner of passenger compt, on left front door pillar)
• G203
• Ground
• Hot at all times
• Hot in on
• Hvac (batt) fuse 10a
• Hvac blo fuse 30a
• Hvac control module
• Hvac fuse 10a
• Ign
• Ign 3 fuse 10a
• Illum
• In air temp sig
• Inside air temp sensor (near left center dash panel)
• Instrument panel integration module (behind left side of dash)
• Interior lights system
• Kdd clock
• Kdd data
• Left heater temp sensor (under left side of dash, in sound insulator)
• Left panel temp sensor (in left dash duct, behind outer vent)
• Lh htr temp sig
• Lh panel temp sig
• Lh sun load sens
• Mode act cntl
• Mode door actuator (under left side of dash, on left side of hvac module)
• Mode dr pos sens
• Motor ground
• Pass mdl fuse 10a
• Passenger air mix actuator (under right side of dash, on right side of hvac module)
• Rear fuse block (under left rear seat)
• Recirc act cntl
• Recirc act sig
• Rh htr temp sig
• Rh panel temp sig
• Rh sun load sens
• Right heater temp sensor (under right side of dash, in sound insulator)
• Right panel temp sensor (in right dash duct, behind outer vent)
• S200
• S204
• S205
• S208
• S222
• S253
• Sensor grd
• Solid state
• Sunload sensor & ambient light sensor (on top center of dash, in defroster grille)
• Tan

Automatic A/C Wiring Diagram (2 of 2) for Buick LeSabre Custom 2000

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Buick LeSabre Custom 2000:

• (engine harn, 6.5 cm from iac valve breakout)
• 5 v
• A/c clu fuse 15a
• A/c clu relay
• A/c compressor clutch
• A/c compressor clutch diode
• A/c enable
• A/c pressure sensor (behind a/c compressor, on a/c line)
• A11
• A12
• B10
• Bat
• Battery
• Blower control module (under right side of dash, above blower motor)
• Blower motor (under right side of dash, above sound insulator)
• Blwr mtr grd
• Blwr sp input
• Blwr volt
• Cntl sig
• Computer data lines system
• Cool fan 1 fuse 30a
• Cool fan 1 relay (low speed)
• Cool fan 2 fuse 30a
• Cool fan 2 relay (high speed)
• Cool fan s/p relay (series/parallel)
• D10
• Dash integration module (dim) (behind right side of dash, under sound insulator)
• Data line
• E10
• Ect sens grd
• Ect sens sig
• Engine controls system
• Engine coolant temperature sensor (on rear of
• Engine, near thermostat housing)
• F11
• G101 (mounted to inner body panel, near underhood fuse block)
• G129 (on top of transmission)
• G203 (lower right corner of engine compt, on right front door pillar)
• Grd
• Ground
• High spd fan cntrl
• Hot at all times
• Hot in on
• Inflatable restraint steering wheel module coil
• Interior lights system
• Left cooling fan motor
• Low spd fan cntrl
• Passenger door module (pdm) (in passenger door)
• Passenger temperature control assembly
• Pdm low side input
• Pnk
• Powertrain control module (pcm) (in air cleaner housing)
• Rh side steering wheel controls
• Right cooling fan motor
• S106
• S108
• S602 (right front door harn, 10 cm from door module connector breakout)
• Sensor grd
• Sensor signal
• Sound systems
• Speed cntl
• Steering column fuse holder
• Sw grd
• Sw1
• Sw2
• Sw3
• Sw4
• Switch fuse 2a
• Tan

Compressor Wiring Diagram for Buick LeSabre Custom 2000

List of elements for Compressor Wiring Diagram for Buick LeSabre Custom 2000:

• (engine harn, 6.5 cm from iac valve breakout)
• 5 v
• A/c clu fuse 15a
• A/c clu relay
• A/c compressor clutch
• A/c compressor clutch diode
• A/c enable
• A/c pressure sensor (behind a/c compressor, on a/c line)
• Computer data lines system
• Data line
• Engine controls system
• G129 (on top of transmission)
• Hot at all times
• Hot in on
• Powertrain control module (pcm) (in air cleaner housing)
• S106
• S108
• Sensor grd
• Sensor signal
• Underhood fuse block (right front side of engine compartment)

Manual A/C Wiring Diagram (1 of 2) for Buick LeSabre Custom 2000

List of elements for Manual A/C Wiring Diagram (1 of 2) for Buick LeSabre Custom 2000:

• (hvac harn, near hvac blower)
• (hvac harn, near hvac blower) s221
• 5v ref
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• Air inlet act cntl
• Air mix act cntl
• Air temperature mix actuator (on left side of hvac module)
• Anti-lock brakes system
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• Batt
• Battery
• Blower control module (under right side of dash, above blower motor)
• Blower motor (under right side of dash, above sound insulator)
• Blwr mtr grd
• Blwr sp cntrl
• Blwr sp input
• Blwr volt
• C1 a10
• Computer data lines system
• D12
• Data line
• Dim out
• Dimmer sw out
• G200 (lower front corner of passenger compt, on left front door pillar)
• G203 (lower right corner of engine compt, on right front door pillar)
• Grd
• Grd return
• Headlights system
• Hot at all times
• Hot in on
• Hvac batt fuse 10a
• Hvac blo fuse 30a
• Hvac control module (behind left side of dash)
• Hvac fuse 10a
• Illum grd
• Int lamp sw out
• Interior lights system
• Key reminder sw
• Logic grd
• Mode act cntl
• Mode door actuator (under left side of dash, on left side of hvac module)
• Motor grd
• Photocell sig
• Rear fuse block
• Recirculation actuator (under right side of dash, to right of blower motor)
• S208
• S222
• S253
• Solid state
• Speed cntl
• Trac cntrl sw
• Twilight sentinel
• Warnings system

Manual A/C Wiring Diagram (2 of 2) for Buick LeSabre Custom 2000

List of elements for Manual A/C Wiring Diagram (2 of 2) for Buick LeSabre Custom 2000:

• (engine harn, 6.5 cm from iac valve breakout)
• 5 v
• A/c clu fuse 15a
• A/c clu relay
• A/c compressor clutch
• A/c compressor clutch diode
• A/c enable
• A/c pressure sensor (behind a/c compressor, on a/c line)
• B10
• Computer data lines system
• Cool fan 1 fuse 30a
• Cool fan 1 relay (low speed)
• Cool fan 2 fuse 30a
• Cool fan 2 relay (high speed)
• Cool fan s/p relay (series/parallel)
• D10
• Data line
• E10
• Ect sens grd
• Ect sens sig
• Engine controls system
• Engine coolant temperature sensor (on rear of
• Engine, near thermostat housing)
• F11
• G101 (mounted to inner body panel, forward of underhood fuse block)
• G129 (on top of transmission)
• High spd fan cntrl
• Hot at all times
• Hot in on
• Left cooling fan motor
• Low spd fan cntrl
• Powertrain control module (pcm) (in air cleaner housing)
• Right cooling fan motor
• S106
• S108
• Sensor grd
• Sensor signal
• Underhood fuse block (right front side of engine compartment)