AIR CONDITIONING – Buick LeSabre Custom 1999 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Buick LeSabre Custom 1999

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Buick LeSabre Custom 1999:

• (body harness, 8 cm from right i/p cross-channel)
• (body harness, at right wheelhouse)
• (engine harness, 6 cm from a/c compressor clutch breakout)
• (i/p harness, behind center of dash)
• (top left side of dash)
• (top right side of dash)
• +5v
• A/c clutch relay (center rear of engine compartment)
• A/c compres- sor clutch
• A/c compres- sor clutch diode
• A/c fuse 30a
• A/c request
• Ambient temperature sensor (on lower radiator rail)
• Battery
• Blower control
• Blower control module (center rear of engine compartment)
• Blower feedback
• Blower motor
• Clock driver
• Computer data lines system
• Data line
• Data link connector (below left side of dash)
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• Enable
• F10
• F11
• F12
• F13
• F14
• F15
• F16
• Fuse 10a
• Fuse 5a 15a
• Fuse 7e 10a
• Fuse 9c 10a
• G105 (right front of engine compartment)
• G201 (right kickpad)
• Ground
• Heater and a/c programmer (behind right side of dash)
• Hot at all times
• Hot in run
• Hot in run or start
• I/p fuse block
• Ign
• Ignition
• Inside air temperature sensor (left side of eng compt, in air intake duct)
• Left sunload sensor
• Motor ctrl
• Nca
• Pass control
• Pass ctrl input
• Pass ctrl status
• Passenger air mix valve actuator
• Pnk
• Red
• Return
• Rh i/p junction block
• Right maxi fuse block
• Right sunload sensor
• S102 (body harness, near a/c accumulator)
• S108
• S207 (body harness, 12 cm from center i/p cross-channel)
• S241 (body harness, 40 cm from lamp control module)
• S268 (body harness, 26 cm from heater and a/c programmer)
• S270
• S277
• S279 (body harness, 2 cm from end of right i/p cross- channel)
• S308 (body harn, near g203)
• Sense
• Sensor ground
• Sensor input
• Sensor return
• Signal driver
• Solar sensor input
• Tan

Automatic A/C Wiring Diagram (2 of 2) for Buick LeSabre Custom 1999

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Buick LeSabre Custom 1999:

• (i/p harness, 12.5 cm from radio)
• (left front side of engine compartment)
• (near air cleaner housing)
• A/c pressure transducer (lower right front of engine)
• A/c request
• Clg fan/tcc fuse 5c 10a
• Compressor control
• Cool fns fuse 40a
• Fan relay ctrl
• G104
• G201 (right kickpad)
• G202 (left kick pad)
• Ground
• Heater and a/c control assembly
• High speed coolant fan relay (left rear of engine compartment)
• Hot at all times
• Hot in run
• I/p fuse block
• Ignition
• Illumination
• Interior lights system
• Left coolant fan motor
• Left maxi fuse block
• Low speed coolant fan relay (left rear of engine compartment)
• Nca
• Passenger climate control
• Powertrain control module
• Pressure sw input
• Red
• Right coolant fan motor
• S104 (body harness, 27 cm from left maxi fuse box)
• S121 (engine harness, near accumulator)
• S124 (body harness, 10 cm from ebcm/ebtcm)
• S128 (body harn, 6.5 cm from fan motor breakout)
• S213
• S269 (body harness, 19 cm from heater and a/c programmer)
• S308 (body harness, near g203)
• Sensor return
• Tan
• To sound system
• Vf dim input

Compressor Wiring Diagram for Buick LeSabre Custom 1999

List of elements for Compressor Wiring Diagram for Buick LeSabre Custom 1999:

• (bonneville)
• (bonneville, eighty-eight) (lesabre)
• (eighty-eight)
• (engine harn, 6 cm from a/c compressor clutch breakout)
• (engine harn, near accumulator)
• (lesabre)
• A/c compressor clutch
• A/c compressor clutch diode
• A/c compressor relay (center rear of engine compartment)
• A/c refrigerant pressure sensor (on hose assembly, near a/c compressor)
• A/c req
• A/c request
• Automatic a/c
• B h
• Bi-lv
• C2 c2
• D4 (bonneville)
• Def
• F4 (lesabre, lss, eighty-eight)
• Fuse 5d fuse 5a 25a 15a
• Fuse 7e 10a
• G201 (at right kickpad)
• Heater and a/c programmer (behind right side of dash)
• Heater-a/c control assembly
• Hot in run
• Hot in run or start
• Htr
• I/p fuse block
• Manual a/c
• Max
• Mode switch
• Nca
• Norm
• Off
• Pnk
• Powertrain control module (near air cleaner housing)
• Press sw input
• Relay ctrl
• S106
• S107
• S121
• S279 (body harn, behind right side of dash)
• Sensor return
• Vent
• Vsb a/c

Manual A/C Wiring Diagram for Buick LeSabre Custom 1999

List of elements for Manual A/C Wiring Diagram for Buick LeSabre Custom 1999:

• (body harn, 40 cm from lamp control module)
• (body harness, behind right side of dash)
• (body harness, right rear of engine compt)
• (engine harness, 6 cm from a/c compressor clutch breakout)
• (left front side of engine compartment)
• (near air cleaner housing)
• A/c compressor clutch
• A/c compressor clutch diode
• A/c compressor relay (center rear of engine compartment)
• A/c ctrl
• A/c fuse 30a
• A/c refrigerant pressure sensor (on hose assembly near a/c compressor)
• A/c request
• A/c solenoid switch assembly (behind right side of dash)
• A/c temperature valve actuator (behind center of dash)
• B tan
• B3 pnk
• Blower feed
• Blower hi
• Blower m1
• Blower m2
• Blower motor
• Blower motor resistor (center rear of engine compartment)
• Blower relay (center rear of engine compartment)
• Blower speed relay (center rear of engine compartment)
• Clg fan/tcc fuse 5c 10a
• Compressor ctrl
• Cool fns fuse 40a
• Def-a/c ctrl
• Defrost a/c req
• Fan relay ctrl
• Fuse 5a 15a
• Fuse 5d 25a
• Fuse 7e 10a
• G104
• G105 (right front of engine compartment)
• G201 (at right kickpad)
• G202 (left kickpad)
• Ground
• Heat ctrl
• Heat request
• Heater and a/c control assembly
• High speed coolant fan relay (left rear of engine compartment)
• Hot at all times
• Hot in run
• Hot in run or start
• I/p fuse block
• Ignition
• Interior lights system
• Left coolant fan motor
• Left maxi fuse block
• Low speed coolant fan relay (left rear of engine compartment)
• Mode select
• Nca
• O/s air /recirc
• O/s air recirc ctrl
• Pnk
• Powertrain control module
• Pressure sw
• Red
• Relay ctrl
• Right coolant fan motor
• Right maxi fuse block
• S103
• S104 (body harn, 27 cm from laeft maxi fuse block)
• S106
• S107
• S108 (body harness, in right wheelhouse)
• S121 (engine harn, near accumulator)
• S124 (body harness, 10 cm from ebcm/ebtcm)
• S213 (i/p harn, center of dash)
• S240 (body harn, 12 cm from hvac programmer)
• S241
• S279
• Sensor gnd
• Solid state
• Tan
• Temp ctrl gnd
• Temp valve ctrl
• Vf dim input