Diagram sections — 31 (60 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY COMPUTER COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER WINDOWS RADIO SHIFT INTERLOCKS STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
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: 74 (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: 69 (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: 20 (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: 65 (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: 38 (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)
ANTI-LOCK BRAKES Anti-lock Brake Wiring Diagrams for Buick LeSabre Custom 2000 List of elements for Anti-lock Brake Wiring Diagrams for Buick LeSabre Custom 2000: 86 (body harn, near steering column harn breakout) (engine harn, near lf wheel speed sensor breakout) (engine harn, near rf wheel speed sensor breakout) (lower front corner of pass compt, on left front door pillar) (on top of transmission) A1 c2 A14 A15 Abs fuse 10a Abs fuse 50a Abs ind lamp Abs ind sig Abs indicator Auto a/c B c4 Battery Brake pressure modulator valve C1 c8 C11 C12 c1 C3 f1 Computer data lines system Delivered torque output Driver information center (dic) Electronic brake control module (ebcm) (on left front of engine compartment) G129 G200 Ground-module Ground-pump motor Heater & a/c control Hot at all times Hot w/ ign-3 relay energized Ignition 3 Instrument cluster Instrument panel module (ipm) Lateral accelerometer Lateral accelerometer sensor (under rear seat) Left front wheel speed sensor Left rear wheel speed sensor Lf wheel spd sens-ret Lf wheel spd sens-sig Lr wheel spd sens-ret Lr wheel spd sens-sig Manual a/c Nca Powertrain control module (pcm) (in air cleaner housing) Pump motor Rear fuse block Red Requested torque input Rf wheel spd sens-ret Rf wheel spd sens-sig Right front wheel speed sensor Right rear wheel speed sensor Rr wheel spd sens-ret Rr wheel spd sens-sig S101 S102 S103 S104 S211 S226 S303 S305 Sens feed-5v Sensor ret Serial data class 2 Sp301 Steering wheel pos Steering wheel position sensor (swps) (on base of steering column) Stop lp fuse 15a Stoplight sw Stoplight/auto trans shift lock control switch (on brake pedal bracket) Tan Torque delivered Torque desired Trac ctrl sw Traction control switch Traction control system active Traction off indicator Underhood fuse block Var effort steering Variable effort steering actuator (on left side of power steering gear) Vent tube Yaw rate sens Yaw rate sensor (under rear shelf)
ANTI-THEFT Forced Entry Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Forced Entry Wiring Diagram for Buick LeSabre Custom 2000: 34 C11 C12 Class 2 data line Computer data lines system Dash integration module (behind right side of dash) Door open input Driver door lock actuator Driver door lock cylinder switch Driver door module Drv mdl fuse 10a Ground Headlight system & exterior lights system Horn ctrl Horns system Hot at all times Left rear door lock actuator Left rear door module Lf door ajar in Lf door open in Lights ctrl Lrdr mdl fuse 10a Pass mdl fuse 10a Passenger door lock actuator Passenger door lock cylinder switch Passenger door module Rear fuse block Right rear door lock actuator Right rear door module Rrdr mdl fuse 10a S302 (body harn, near left power seat breakout) S602 Serial data class 2 Simple bus interface Tan Pass-Key Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Pass-Key Wiring Diagram for Buick LeSabre Custom 2000: 30 B (+) C11 C12 Computer data lines system Dash integration module (behind right side of dash) Drivers door module (inside drivers door) E9 c1 G200 (on left front door pillar) Gnd Headlight system & exterior lights system Horn ctrl Horns system Hot at all times Ign sw fuse 10a Ignition key Ignition switch Instrument cluster Lights ctrl Pcm fuse 10a Powertrain control module (in air cleaner housing) Reader/ exciter Rear fuse block S212 S217 S226 Serial data class 2 Serial data class 2 ign Transponder Underhood fuse block Vehicle theft deterrent module (right side of steering column)
BODY COMPUTER Dash Integration Module Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Dash Integration Module Wiring Diagram for Buick LeSabre Custom 2000: 54 (under right rear seat, right of battery on floor pan) g303 A10 A11 A12 Acc B+ sense input B10 B11 B12 Battery Battery grd sense in Computer data lines system Control power out Dash integration module (dim) (behind right side of dash, under sound insulator) Dim fuse 10a Dimming output Drl rly ctrl E11 Exterior lights system Flash to pass in G200 (lower front corner of passenger compartment on left front door pillar) Grd Headlamp sw in Headlamps/wipers input Headlighs system Headlights system Hi beam sw/rly ctrl Hi/low beam rly ctrl Horn ctrl Horns system Hot at all times Ign sw fuse 15a Ignition positive voltage Ignition switch Interior lights system Lock Nca Park lamp input Park lamp rly ctrl Parklamp sw in Pnk Power distribution system Rear fuse block Rear fuse block (under left rear seat) Run S212 Serial data class 2 Sound systems Start Steering ctrls ret Steering wheels ctrl feed Underhood fuse block Unlock Wiper/washer system Instrument Panel Integration Module Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Instrument Panel Integration Module Wiring Diagram for Buick LeSabre Custom 2000: 70 5 volt feed 5 volt ref A10 A11 A12 Air conditioning system Air inlet actuator ctrl Air inlet sensor sig Ambient airtemp sens sig Ambient light in Anti-lock brakes system B10 B11 B12 C10 C11 C12 C13 C14 C15 C16 Computer data lines system D10 D11 D12 D13 D14 D15 D16 G203 (lower right corner of passenger compartment, on right front door pillar) G304 (under left side of rear seat) Grd Headlights system Hot at all times Hot in on Hvac batt fuse 10a Hvac fuse 10a Ign-3 relay Ignition positive voltage Inside air temp sens sig Instrument panel integration module (ipm) (behind left side of dash) Interior lamps on sw in Interior lights system Ip dimmer sw in Kdd clock Kdd data Key in ignition in Left temp actuator ctrl Left temp sensor sig Lt a/c temp sens sig Lt heater temp sens sig Lt sun load temp sens sig Mode actuator ctrl Mode sensor sig Motor grd Power distribution system Pwm blower speed ctrl Rear fuse block (under left rear seat) Right htr temp sensor sig Right temp actuator ctrl Right temp sensor sig Rt a/c temp sens sig Rt sun load temp sens sig S205 Sensor grd Serial data signal class 2 Tan Traction ctrl disable in Twilight delay in Warnings system Rear Integration Module Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Rear Integration Module Wiring Diagram for Buick LeSabre Custom 2000: 49 5 volt feed alc 5 volt ret alc A10 A11 A12 Alc exhaust sol out Alc position B10 B11 B12 Cigar lighter rly ctrl Computer data lines system Defogger system Driver heated seat status Electronic level ctrl Electronic suspension system Exterior lights system G304 (under left side of rear seat) G404 (on lower left corner of trunk, forward of tail lamp) Grd Heated seat sig Hot at all times Hot in run or start Ign sw fuse 15a Ign-1 fuse 10a Ign-1 relay Ignition positive voltage Inadvertant power input Interior lamp ctrl Interior lights system Overhead courtesy lamp Park relay ctrl Pass heated seat Pnk Power distribution system Power distribution system (cigar lighter) Power distribution system (rap) Rap ctrl Rear fuse block (under left rear seat) Rear integration module (rim) (behind upper left rear seat cushion) Relay defogger ctrl Reverse lamp Seats system Serial data signal class 2 Shift interlock system Tan Trunk latch sw out Trunk lid open input Trunk, tailgate, fuel doors system
COMPUTER DATA LINES Computer Data Lines for Buick LeSabre Custom 2000 List of elements for Computer Data Lines for Buick LeSabre Custom 2000: 46 (dash harn, 6 cm from instrument panel integration module breakout) s202 A11 A12 A14 A15 Aldl fuse 10a B12 Compact disk player D14 D15 Dash integration module (dim) (behind right side of dash) Data class 2 Data link connector (under lower left side of dash) Driver door module (inside left front door) Electronic brake control module (on left front of engine compt) G203 (on lower right front door pillar) Head up display Heater a/c control (w/ c67) Hot at all times Inflatable restraint sensing & diagnostic module (under rear of center console) Instrument cluster Instrument panel integration module (behind left side of dash) Memory seat module (under driver's seat) Powertrain control module (in air cleaner housing) Radio Rear fuse block Rear integration module (rim) module (behind upper left rear seat cushion) Remote function actuator (rfa) module (below rear shelf) S203 S205 S217 S308 S318 Vehicle theft deterrent module (behind shroud at ignition switch) W/ a45 W/ c67 w/o uv6 W/ cj2 W/ cj2 w/ uv6 W/ cj2 w/o uv6 W/ u1s W/ uv6 W/cj2 w/o uv6 W/o a45 W/o u1s W/o uv6 W/o uv6 w/ c67
COOLING FAN Cooling Fan Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Cooling Fan Wiring Diagram for Buick LeSabre Custom 2000: 20 B10 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 E10 Ect sens grd Ect sens sig Engine coolant temperature sensor (on rear of Engine, near thermostat housing) F11 Fan ctrl G101 (mounted to inner body panel, forward of underhood fuse block) Hot at all times Left cooling fan motor Powertrain control module (left front side of engine compt, in air cleaner cleaner assembly) Right cooling fan motor Underhood fuse block (right front side of engine compartment)
CRUISE CONTROL Cruise Control Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Cruise Control Wiring Diagram for Buick LeSabre Custom 2000: 44 (2001) Abs/tcc switch (near brake pedal) All times Cancel input Cr cont fuse 10a Cruise control module (on left side of engine compt, on strut tower) Cruise inhibit Cruise on/off Cruise set/coast Disable output Engage ouput Engaged input G102 (near left strut tower, on frame rail) Ground Hot at Hot in Ign 1 fuse 10a Ignition Inflatable restraint steering wheels module coil Left steering wheels controls Nca On & start On/off Pnk Powertrain control module (pcm) (in air cleaner housing) Rear fuse block Resume/ accel Resume/accel Right steering wheels controls S215 (body harness, left side of vehicle) S216 S228 Set/ coast Sp301 (under driver's seat) Steering column fuse holder Stop lp fuse 15a Stoplamp switch (on brake pedal bracket) Stp lp sig input Underhood fuse block Vehicle speed input Vehicle speed out Vehicle speed sensor (vss) (on right front of transaxle, below power steering pump) Vss high Vss low
DEFOGGERS Defogger Wiring Diagram, with Auto A/C for Buick LeSabre Custom 2000 List of elements for Defogger Wiring Diagram, with Auto A/C for Buick LeSabre Custom 2000: 46 (left "c" (right "c" A12 B5 nca B6 nca Bonneville C1 a4 C1 c8 C12 C2 b12 C3 d4 C4 h Class 2 data Cntl Compass module (under rear package shelf) Computer data lines Data 2 data Data line Def Door locks system Driver door module (in left front door) Feed G904 G905 Heater & a/c control Hot at all times Hot in on & start Instrument panel integration module (behind left side of dash) Kdd clock Kdd data Left outside heated mirror Nca Passenger door module (in right front door) Pillar) Rear Rear defog control Rear defogger Rear fuse block (under left rear seat) Rear integration module (behind upper left rear seat cushion) Return Right outside heated mirror Rr defog fuse 40a Rr defog relay S302 Simple bus interface Tan/ Defogger Wiring Diagram, with Manual A/C for Buick LeSabre Custom 2000 List of elements for Defogger Wiring Diagram, with Manual A/C for Buick LeSabre Custom 2000: 43 (bonneville) (le sabre) (left "c" (right "c" A12 A14 A15 Bonneville C1 a4 C2 b12 C3 c4 C4 h Class 2 data Cntl Compass module (under rear package shelf) Computer data lines Data 2 data Data line Def Door locks system Driver door module (in left front door) Feed G904 G905 Heater & a/c control Hot at all times Hot in on & start Left outside heated mirror Nca Passenger door module (in right front door) Pillar) Rear Rear defog control Rear defogger Rear fuse block (under left rear seat) Rear integration module (behind upper left rear seat cushion) Return Right outside heated mirror Rr defog fuse 40a Rr defog relay S302 Simple bus interface Tan/
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Electronic Power Steering Wiring Diagram for Buick LeSabre Custom 2000: 19 Abs fuse 10a Abs fuse 50a Battery C12 Computer data lines system Electronic brake control module (ebcm) (on left front of engine compt) G129 (on top of transmission) Ground-module Ground-pump Hot at all times Hot in run Ignition Nca Rear fuse block (under left rear seat) Red Serial data Underhood fuse block (right front side of engine compt) Var effort str Variable effort steering actuator (on left side of power steering gear)
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Electronic Suspension Wiring Diagram for Buick LeSabre Custom 2000: 27 (on lower left corner of trunk 5 volt reference Air inflator switch (bonneville only) Alc Alc fuse 30a Alc relay control Automatic level control compressor (under rear of vehicle, near suspension carrier) Automatic level control suspension position sensor (under rear of vehicle, near rear suspension) B10 C10 C11 Compressor Exhaust solenoid Exhaust solenoid control Forward of taillamp) G405 G405 (on lower left corner of trunk forward of taillamp) Ground Hot at all times Hot in run Ign Motor Rear fuse block (under left rear seat) Rear integration module (rim) (behind upper left rear seat cushion) Red Relay Signal
ENGINE PERFORMANCE
3.8L 3.8L VIN K, Engine Performance Wiring Diagrams (1 of 4) for Buick LeSabre Custom 2000 List of elements for 3.8L VIN K, Engine Performance Wiring Diagrams (1 of 4) for Buick LeSabre Custom 2000: 96 (not used) (on lower front of eng block, near starter) bank 1 knock sensor (rear of engine) 18x ref 18x reference 3x ref 3x reference A/t iss low A/t speed sensor high Acc All times Anti-lock brake system B c Bank 2 knock sensor (on lower rear of eng block, near oil filter) Battery Bonneville le sabre Bypass C3i fuse 10a Ckp 18x sig Ckp sync sig Cmp input Cmp output Cmp signal Compiuter data lines system Cooling fan system Cruise control system Cruise disable/inhibit in Desired torque input E e Ect sensor ground Egr control ground Egr pos sensor ground Evap purge valve cont Evaporative emissions (evap) purge valve (top of eng, near) generator) Fuel inj 1 control Fuel inj 2 control Fuel inj 4 control Fuel inj 5 control Fuel inj 6 control Fuel pump spd ctrl G115 G115 (rear of engine) G125 (lower front of engine) Ground Hi speed cool fan cont Ho2s 1 low Ho2s 2 low Hot at Hot at all times Hot in run & start Iac coil b high Iat sensor ground Ign control Ign voltage Ignition Ignition control Ignition control (ic) module (on top left front of eng) Ignition switch (pigtailed for le sabre) Instrument cluster, cruise control system (vehicle speed) Ks1 input Ks2 input Lo speed cool fan cont Lock Maf sensor input Map sensor +5 v Map sensor ground Mass airflow sensor (top of throttle body) Not used Off Pcm batt fuse 10a Pcm ground Pnk Pnk a Pnk c Powertrain control module (pcm) (near air cleaner housing) Ref low Reference low Run S212 Sensor return Sensor return (eop) Serial data (class 2) Shift sol a control Shift sol b control Start Tan Tcc switch input Tp sensor ground Trans press sw a input Trans range sw b input Under- hood fuse block Vacuum valve control Vehicle speed sensor (vss) (right front of transaxle, below power steering pump) Vss high Vss low Vss output 3.8L VIN K, Engine Performance Wiring Diagrams (2 of 4) for Buick LeSabre Custom 2000 List of elements for 3.8L VIN K, Engine Performance Wiring Diagrams (2 of 4) for Buick LeSabre Custom 2000: 32 (ign module harn, near icm) (rear of engine) 1-2 shift sol 2-3 shift sol A/t fluid pressure manual valve position switch A/t fluid temp sensor A/t input shaft speed sensor Abs/ tcc switch (near brake pedal) Automatic transaxle Automatic transaxle internal mode switch Camshaft position sensor (cmp) (front of eng, below water pump) Crankshaft position sensor (ckp) (front of eng, behind crank pulley) Cruise control system Fuel injec- tors G115 Hot in run & start Ign 1 fuse 10a Injr 1 fuse 10a Injr 2 fuse 10a Pnk Pressure control solenoid Rear fuse block Red Red a Rev S135 S136 S216 Tan Tcc pwm sol Tcc rel Under- hood fuse block 3.8L VIN K, Engine Performance Wiring Diagrams (3 of 4) for Buick LeSabre Custom 2000 List of elements for 3.8L VIN K, Engine Performance Wiring Diagrams (3 of 4) for Buick LeSabre Custom 2000: 44 (eng harn, 6.5 cm from iac) (in right side of luggage compt) (left kick panel) g200 (right rear of trunk) g405 A/c pressure sensor (behind a/c comp, on a/c line) Bonneville Engine oil level switch (in left side of eng oil pan) Engine oil pressure sensor Exhaust gas recirculation (egr) valve (top rear of eng, near throttle body) F/pmp fuse 20a Fuel pump Fuel pump control module (vin 1) Fuel pump feed Fuel pump high Fuel pump low Fuel pump relay Fuel tank pressure sensor (top of fuel tank) Fuel tank unit G115 (rear of engine) G904 (left rear "c" pillar) Ground Hot at all times Hot in run & start Instrument cluster Intake air temperature (iat) sensor (left side of eng compt, in air intake duct) Ip fuse 10a Le sabre Malfunction indicator lamp Manifold absolute pressure (map) sensor (top right side of eng, above valve cover) Pnk Pwm control fuel pump Rear fuse block Red S105 (engine harn, 9.5 cm from pcm connector) S106 S206 S401 Stop lamp/ btsi switch Tach input Tan Throttle position (tp) sensor (on throttle body assembly) Under- hood fuse block Vin 1 Vin k 3.8L VIN K, Engine Performance Wiring Diagrams (4 of 4) for Buick LeSabre Custom 2000 List of elements for 3.8L VIN K, Engine Performance Wiring Diagrams (4 of 4) for Buick LeSabre Custom 2000: 77 (under left rear of car, in front of fuel tank, behind evap canister) evaporative emissions (evap) canister vent valve 5 volt reference a 5 volt reference b A/c comp relay control A/c ref pressure A/c system A/t fluid temp input Air pump fuse 30a Air pump motor Air pump relay Air relay coil ctrl Air vacuum valve solenoid Anti-lock brake system B red Boost control solenoid (bonneville) (top left rear of eng, near oil fill) Boost solenoid control Brake pedal sw out Cruise control system Cruise status Delivered torque control Ect sensor input Egr pintle position input Egr valve control Eng oil level sw input Engine coolant temperature (ect) sensor (on rear of eng, near thermostat housing) Evap solenoid control Fuel inj 3 control Fuel level input Fuel pump relay control Fuel tank press sensor Fuel tank sender G115 (rear of engine) G129 (top of transmission) Gen term f monitor Gen term l control Heated oxygen sensor 1 (in right exhaust manifold) Heated oxygen sensor 2 (near front of catalytic converter) Ho2s 1 input Ho2s 2 input Hot at all times Hot in run & start Hot in run and start Iac coil a high Iac coil a low Iac coil b low Iat sensor input Idle air control (iac) valve (on throttle body assembly) Ign 1 fuse 10a Ignition Ignition 1 Map sensor input Mil control Nca Oil pressure signal Oxy sen fuse 10a Pcm ign fuse 10a Pnk Powertrain control module (pcm) (near air cleaner housing) Press sol high control Press sol low control Rear fuse block Red Sensor ground Starter relay output Starting/charging system Tach signal Tan Tcc pwm sol control Tp sensor input Trans range b input Trans range c input Trans range p Trans range sw a input Trans range sw c input Trans tcc release sw in Under- hood fuse block Vent sol fuse 10a
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Back-up Lamps Wiring Diagram for Buick LeSabre Custom 2000: 21 (behind upper left rear cushion) rear integration module (on lower right corner of trunk, forward of tail lamp) (rear of eng, behind power steering pump) A12 Automatic transaxle Automatic transaxle internal mode switch B12 G110 G405 Hot at all times Left back- up lamp Nsbu fuse 10a Powertrain control module (in air cleaner housing) Rear fuse block (under left rear seat) Reverse lamp relay Reverse lp rly ctrl Right back- up lamp S411 Serial data Tr sw a Tr sw b Exterior Lamps Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Exterior Lamps Wiring Diagram for Buick LeSabre Custom 2000: 97 (behind right side of dash) dash integrated control module) (i/p harn, near breakout to cigar lighter) (near left strut tower, on frame rail) (rear compt lid harn, near grommet at license plate lamp) Batt C1 a1 C1 a3 C1 a4 C1 a8 C1 b4 C1 b5 C1 b6 C1 b7 C1 b8 C1 b9 C1 c9 C2 b5 C2 e6 C2 e7 C2 f8 C2 f9 Dmr fuse 10a F12 G101 (mounted to inner body panel, forward of underhood fuse block) G102 G200 (lower front coner of passenger compt, on left front door pillar) G201 (lower right coner of passenger compt, on right front door pillar) G404 (on lower left corner of trunk, forward of tail lamp) G404 (on lower right corner of trunk, forward of tail lamp) G405 (on lower right corner of trunk, forward of tail lamp) Gnd Hazard sw Head-up display module (on top left side of dash) Headlamp sw Headlamp sw sign Headlamp switch Headlighs system Hight mounted stop lamp Hot at all times Hot in run & start Ign1 fuse 10a Instrument panel cluater L cornering lmp Left cornering lamp Left front park/ turn lamp Left front side marker lamp Left license plate lamp Left rear park lamps Left rear park/ stop/turn lamp Left rear side marker lamp Left turn Left turn ind Lf turn sign lmp Lh park lp fuse 10a Lr stop/turn lmp Nca Not used Park lamp sw sign Park lp relay Pk lp on input Pk lp sw Pnk Prk lp rly ctrl R cornering lmp Rear fuse block (under left rear of seat) Rf turn sign lmp Rh park lp fuse 10a Right cornering lamp Right front park/ turn lamp Right front side marker lamp Right license plate lamp Right rear park lamps Right rear park/ stop/turn lamp Right rear side marker lamp Right turn Right turn ind Rr stop/turn lmp S121 S122 S203 S224 nca S250 S251 S309 S411 S412 S413 Splice pack sp301 (under left front seat) Stop lmp sw out Stop lp fuse 15a Stoplamp switch (on brake pedal support) c1 Tan Tsig/ haz fuse 15a Turn signal/ hazar switch Turn signal/hazard flasher module (under left side of dash) Under- hood lamp Underhood fuse block (right front side of eng compt)
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 4) for Buick LeSabre Custom 2000 List of elements for Ground Distribution Wiring Diagram (1 of 4) for Buick LeSabre Custom 2000: 45 A/c clutch A/c clutch diode Accy relay Air pump motor Automatic transaxle Brake fluid level switch Coil Contact Cool fan s/p relay (series/ parallel) Cruise control module Drl relay Dual horn assembly Electronic brake & (traction) control module (ebcm/ebtcm) Engine coolant level sensor Engine oil level switch F11 G101 (mounted to inner body panel, forward of underhood fuse block) G101 (on top of frame rail, in front of underhood fuse block) G102 (near left strut tower, on frame rail) G110 (lower front of engine, right of starter motor) G110 (rear of engine behind power steering pump) G129 (on top of transmission) Heated oxygen sensor (ho2s) (b1,s1) Heated oxygen sensor (ho2s) (b1,s2) If equipped Ign-1 relay Ignition control module (icm) Internal mode switch Left cornering lamp Left engine cooling fan motor Left front park/turn signal lamp Left low beam headlamp Mass air- flow (maf) sensor Nca Powertrain control module (pcm) Right front park/turn lamp S108 (in engine harness 18 cm (7.0 in) from a/c clutch connector breakout) S122 (in forward lamp harness 17 cm (6.7 in) from 7 pin in-line connector to left headlamp harness) Underhood fuse block (right front side of engine compartment) Underhood lamp W/cornering lamps W/o cornering lamps Windshield washer fluid level switch Windshield washer pump motor Windshield wiper motor Ground Distribution Wiring Diagram (2 of 4) for Buick LeSabre Custom 2000 List of elements for Ground Distribution Wiring Diagram (2 of 4) for Buick LeSabre Custom 2000: 51 A16 Auto a/c Auto trans shift lock control actuator B16 Blower control module Cigar lighter Compact disc (cd) player D16 Dash integration module (dim) Data link connector (dlc) (partial) Driver door module (ddm) Driver door switch assembly (ddsa) Driver information display switch Flat wire G200 (lower front corner of passenger compartment on left front door pillar) G203 (lower right corner of passenger compartment on right front door pillar) G300 (under left front seat on forward crossmember) Headlamp switch Heads up display (hud) dimmer switch Heads up display (hud) switch Heater & a/c control I/p compartment lamp switch If equipped Inflatable restraint steering wheel module coil Instrument cluster (ipc) Instrument panel integration module (ipm) Key buzzer switch Left front door lock actuator Left front door lock cylinder switch Left heated seat switch Left power door lock switch Left side steering wheel controls Manual a/c Memory function switch Nca Passenger door module (pdm) Radio Rear compartment lid release switch Right side steering wheel controls S203 (in instrument panel harness 6.5 cm (2.5 in) from instrument panel module (ipm) breakout) S205 (in instrument panel harness 6.5 cm (2.5 in) from 30 cavity brown in-line connector, i/p harness to i/p flat wire harness) S214 (in steering wheel harness 5 cm (1.8 in) from sir coil) S225 (in steering column harness) S226 (in steering column harness) S500 (in left front door trim harness, in left front door 19 cm (7.4 in) from black 18 pin in line connector, between door & door trim panel) Steering column fuse holder Stop lamp/ tcc switch Traction control switch Turn signal multifunction switch Turn signal/ hazard flasher lamp module Vehicle theft deterrent module Ground Distribution Wiring Diagram (3 of 4) for Buick LeSabre Custom 2000 List of elements for Ground Distribution Wiring Diagram (3 of 4) for Buick LeSabre Custom 2000: 49 (under left rear seat) rear fuse block (under right rear seat, right of battery on floor pan) g303 6 way seats 8 way seats A (or d) A11 A18 Auxiliary power outlet (front of console) Auxiliary power outlet (rear of console) B12 Battery C (or h) D (or e) Dash integration module (dim) F/pmp relay Floor ctsy lmp relay Fuel door lock relay Fuel door unlock relay G301 (under right front seat on forward crossmember) G301 (under right front seat, on forward crossmember) G304 (under left side of rear seat) G904 (left "c" pillar) G905 (right "c" pillar) If equipped Ign-1 relay Inflatable restraint sensing & diagnostic module (sdm) Left front power seat switch Left front seat recline switch Left heated seat module Left rear door module (lrdm) Memory seat module (msm) Nca Rear window defogger Remote function actuator (rfa) module Right front power seat switch Right front seat recline switch Right heated seat module Right rear door module (rrdm) S315 (in left seat harness, under left front seat 6.5 cm (2.5 in) from left heated seat module connector breakout) S316 S321 (in left seat harness, under left front seat, 9.5 cm (3.7 in) from left seat harness clip) S322 (in right seat harness, under right front seat, 9.5 cm (3.7 in) from right seat harness clip) S324 (w/heated seats) (in left seat harness, under left front seat 9.5 cm (3.7 in) from left seat harness clip) W/2 way power seats W/6 & 8 way power seats W/heated seats W/memory & lumbar seats, auto dimming inside rear view & outside mirrors W/o heated seats W/o memory & lumbar seats, auto dimming inside rear view & outside mirrors Ground Distribution Wiring Diagram (4 of 4) for Buick LeSabre Custom 2000 List of elements for Ground Distribution Wiring Diagram (4 of 4) for Buick LeSabre Custom 2000: 38 Automatic level control compressor Fuel tank unit G404 (on lower left corner of trunk forward of tail lamp) G405 (on lower right corner of trunk, forward of tail lamp) Garage door opener Harness & headliner harness, behind left "c" pillar) High mounted stop lamp If equipped Inside rear view mirror Left back-up lamp Left license plate lamp Left rear reading lamp switch Left rear side marker Left rear tail lamp Left rear tail/stop turn signal lamp Left vanity mirror Nca Outside moisture sensor Overhead front reading lamp Rear compartment lid release actuator Rear integration module (rim) Right back-up lamp Right cornering lamp Right high beam headlamp Right license plate lamp Right low beam headlamp Right rear reading lamp switch Right rear side marker lamp Right rear tail lamp Right rear turn/stop taillamp Right vanity mirror S100 (in forward lamp harness, 4 cm (1.6 in) from ground g101 forward of underhood fuse block) S121 (in forward lamp harness 17 cm (6.7 in) from black 7 cavity in-line connector between forward lamp harness & right headlamp harness, near right headlamp) S334 S411 (in rear compartment lid harness 34.5 cm (13.5 in) from grommet center rear of deck lid near license plate lamps) Sunroof control module W/ cornering lamps W/o cornering lamps
HEADLIGHTS Headlight Wiring Diagram, with Auto A/C for Buick LeSabre Custom 2000 List of elements for Headlight Wiring Diagram, with Auto A/C for Buick LeSabre Custom 2000: 50 (top center of dash) sunload sensor & ambient light sensor 87a A11 A12 B10 B11 B12 Computer data lines system Dash integration module (dim) (right side of dash) Dimmer switch Drl relay F11 Flash- to-pass switch Fog/ drl fuse 15a G101 (forward of underhood fuse block) G200 (on left front door pillar) G405 (on lower right corner of trunk) Hdhi- bml fuse 10a Hdhi- bmr fuse 10a Hdlo- bml fuse 15a Hdlo- bmr fuse 15a Hdlp hi bm relay Hdlp lo bm relay Headlamp beam switch Headlamp dimmer switch Headlamp switch Hot at all times Instrument panel integration module (behind left side of dash) Interior lamp switch Interior lights system Ip fuse 10a Left high beam head- lamp Left low beam head- lamp Lights on ind Low Nca Off Pk lp switch Pnk Prk lp relay Rear fuse block (under left rear seat) Right high beam head- lamp Right low beam head- lamp S100 S122 (w/ cornering lamps) S204 (i/p harn, upper left side of dash) S226 Twilight delay sw Underhood fuse block (right front side of engine compt) Wiper/ washer system Headlight Wiring Diagram, with Manual A/C for Buick LeSabre Custom 2000 List of elements for Headlight Wiring Diagram, with Manual A/C for Buick LeSabre Custom 2000: 49 (top center of dash) ambient light sensor 87a A11 A12 B10 B11 Climate control panel (ccp) (behind left side of dash) Computer data lines system Dash integration module (dim) (right side of dash) Dimmer switch Drl relay F11 Flash- to-pass switch Fog/ drl fuse 15a G101 (forward of underhood fuse block) G200 (on left front door pillar) G405 (on lower right corner of trunk) Hdhi- bml fuse 10a Hdhi- bmr fuse 10a Hdlo- bml fuse 15a Hdlo- bmr fuse 15a Hdlp hi bm relay Hdlp lo bm relay Headlamp beam switch Headlamp dimmer switch Headlamp switch Hot at all times Interior lamp switch Interior lights system Ip fuse 10a Left high beam head- lamp Left low beam head- lamp Lights on ind Low Nca Off Pk lp switch Pnk Prk lp relay Rear fuse block (under left rear seat) Right high beam head- lamp Right low beam head- lamp S100 S122 (w/ cornering lamps) S204 (i/p harn, upper left side of dash) S226 Twilight delay sw Underhood fuse block (right front side of engine compt) Wiper/ washer system
HORN Horn Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Horn Wiring Diagram for Buick LeSabre Custom 2000: 15 A12 B12 C202 D10 Dash integration module (behind right side of dash) Dual horn assembly (behind left front fascia) G101 (forward of underhood fuse block) Horn fuse 15a Horn relay Horn switch Hot at all times Inflatable restraint steering wheel module Inflatable restraint steering wheel module coil Nca Underhood fuse block
INSTRUMENT CLUSTER Head-Up Display Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Head-Up Display Wiring Diagram for Buick LeSabre Custom 2000: 34 (buick) (pontiac) Battery C11 Computer data lines system Cruise control system, instrument cluster system Data lines Dimming Dimming signal Exterior lights system G203 (buick: lower right corner of passenger compt, on right right front door pillar) (pontiac: on lower right front "a" pillar) Ground Head-up display (hud) dimmer switch Head-up display module (hud) (on top left side of dash) Hot at all times Hot in run or start Ign 3 rr fuse 10a Ignition Image down Image up Interior lights system Ip fuse 10a Lf turn signal Motor down feed Motor up feed Powertrain control module (pcm) (in air cleaner housing) Rear fuse block (under left rear seat) Rf turn signal S200 S203 S205 S206 (2000-2001 pontiac, 2001 buick) S215 (body harn, left side of vehicle) Vehicle speed signal Instrument Cluster Wiring Diagram, with U2E for Buick LeSabre Custom 2000 List of elements for Instrument Cluster Wiring Diagram, with U2E for Buick LeSabre Custom 2000: 79 Abs ind Abs ind control Abs ind signal Airbag ind Airbag ind control Battery Brake fluid level signal Brake fluid level switch (in master cylinder reservoir) Brake ind Brake ind control C11 C12 Computer data lines system Coolant level signal Coolant temp ind Coolant temp ind control Cruise control system, head-up display system Cruise ind Cruise ind control D11 Data lines Driver information center (dic) switch Electronic brake & traction control module (ebcm/ebtcm) (on left front of engine compt) Eng/ met Eng/met signal Engine coolant level sensor (on radiator right tank) Exterior lights system Fuel gauge G102 (near left strut tower, on framerail) G103 (mounted to inner body panel, forward of underhood fuse block) G200 (lower front corner of passenger compt, on left front door pillar) G203 (lower right corner of passenger compt, on right front door pillar) Ground Hot at all times Hot in run or start Ign 1 fuse 10a Ign 3 rr fuse 10a Ignition Illumination Instrument cluster (ipc) Interior lights system Ip fuse 10a Km/h led Left turn ind Left turn signal Low fuel led Mil control Mph led Nca Optical sensor Park brake signal Park brake switch (on top of park brake pedal assembly) Pnk Powertrain control module (pcm) (in air cleaner housing) Rear fuse block (under left rear seat) Right turn ind Right turn signal S203 S215 (body harn, left side of vehicle) S216 S307 Seat belt ind Seat belt ind control Security ind Security ind control Service engine soon ind Service veh ind control Service vehicle soon ind Speedometer Temperature gauge Traction off ind Traction off ind control Trip reset Trip reset signal Underhood fuse block (right front side of engine compt) Vehicle speed signal Vss signal Washer fluid level signal Windshield washer fluid level switch (in windshield washer fluid reservoir) Instrument Cluster Wiring Diagram, with UB7 for Buick LeSabre Custom 2000 List of elements for Instrument Cluster Wiring Diagram, with UB7 for Buick LeSabre Custom 2000: 96 Abs ind Abs ind control Abs ind signal Airbag ind Airbag ind control Battery Brake fluid level signal Brake fluid level switch (in master cylinder reservoir) Brake ind Brake ind control C11 C12 Computer data lines system Coolant level signal Coolant temp ind Coolant temp ind control Cruise control system, head-up display system Cruise ind Cruise ind control D11 Data lines Driver information center (dic) switch Electronic brake & traction control module (ebcm/ebtcm) (on left front of engine compt) Eng/ met Eng/met signal Engine coolant level sensor (on radiator right tank) Exterior lights system From brake ind (diagram 1 of 1) Fuel gauge Fuel info Fuel info signal Fuel info signal signal G102 (near left strut tower, on framerail) G103 (mounted to inner body panel, forward of underhood fuse block) G200 (lower front corner of passenger compt, on left front door pillar) G203 (lower right corner of passenger compt, on right front door pillar) Gauge info Gauge info signal Ground Hot at all times Hot in run or start Ign 1 fuse 10a Ign 3 rr fuse 10a Ignition Illumination Instrument cluster (ipc) Interior lights system Ip fuse 10a Km/h led Left turn ind Left turn signal Low fuel led Mil control Mph led Nca Odo/ trip Odo/trip signal Oil ind Oil ind control Optical sensor Park brake signal Park brake switch (on top of park brake pedal assembly) Pnk Powertrain control module (pcm) (in air cleaner housing) Rear fuse block (under left rear seat) Reset Reset signal Right turn ind Right turn signal S203 S215 (body harn, left side of vehicle) S216 S307 Seat belt ind Seat belt ind control Security ind Security ind control Service engine soon ind Service veh ind control Service vehicle soon ind Speedometer Tach signal Tachometer Tachometer signal Tan Temperature gauge To seat belt ind (diagram 1 of 1) Traction off ind Traction off ind control Underhood fuse block (right front side of engine compt) Vehicle speed signal Volt ind Volt ind control Vss signal Washer fluid level signal Windshield washer fluid level switch (in windshield washer fluid reservoir)
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram (1 of 2) for Buick LeSabre Custom 2000 List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Buick LeSabre Custom 2000: 49 (2000) b6 (2001) a6 A12 B12 C1 a4 Class 2 serial data line Computer data lines system D12 Driver door switch assembly (ddsa) E11 E12 G405 Ground Hot at all times Instrument panel integration module (ipm) (behind left side of dash) Int lp fuse 10a Int lp relay Interior lamp relay control J/b (lower right corner of trunk, forward of tail lamp) Left front door courtesy lamp (w/ c90) Left front door lock actuator Left front door module (upper right corner of door, behind trim panel) Left front door open input Left front foot well courtesy lamp Left rear door courtesy lamp (w/ c90) Left rear door lock actuator Left rear door module (lrdm) (in left rear door) Left rear door open input Rear compartment courtesy lamp Rear compartment lid release actuator Rear fuse block (under left rear seat) Rear integration module (rim) (behind upper left rear seat cushion) Red/ Right front door lock actuator Right front door module (rfdm) (in right front door, near door latch) Right front door open input Right rear door lock actuator Right rear door module (rrdm) (in right rear door) Right rear door open input S302 Simple bus interface (sbi) Sp306 (in body harn splicesaver, 8 cm from rear fuse block breakout) Tan Tan/ To s332 (diagram 2 of 2) To s333 (diagaram 2 of 2) To sp310 (diagaram 2 of 2) To sp310 (diagram 2 of 2) Trunk lid open input Courtesy Lamps Wiring Diagram (2 of 2) for Buick LeSabre Custom 2000 List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Buick LeSabre Custom 2000: 29 (in headliner, approx 35.5 cm from overhead console connector breakout) s333 (in headliner, approx 42 cm from overhead console connector breakout) s332 (w/ vanity mirror) (w/o vanity mirror) A10 B10 Courtesy lamp ground From rear fuse block (diagram 1 of 2) From sp306 (diagram 1 of 2) G203 G404 I/p compartment switch/ lamp Inadvertent power input J/b (on lower left corner of trunk, forward of tail lamp) J/b (on lower right "a" pillar) Left front reading courtesy lamp Left rear reading courtesy lamp Left vanity mirror (w/ dh6) Overhead console Rear integration module (rim) (behind upper left rear seat cushion) Right foot well courtesy lamp Right front door courtesy lamp (w/ c90) Right front reading courtesy lamp Right rear door courtesy lamp (w/ c90) Right rear reading courtesy lamp Right vanity mirror (w/ dh6) S203 S329 Sp310 (in body harn splicesaver, 18 cm from rear fuse block breakout) Instrument Illumination Wiring Diagram (1 of 2) for Buick LeSabre Custom 2000 List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Buick LeSabre Custom 2000: 41 (auto hvac) a5 (auto hvac) b1 (in steering column harness) s227 (instrument panel harness) s207 (manual hvac) a9 (manual hvac) b15 C1 a4 C1 d4 C3 b8 Cigar lighter Control power Dash integration module (dim) (behind right side of dash, under sound insulator) Dimr fuse 14 10a Drivers information center (dic) switch Flat wire G200 G203 Head- lamp switch Heads up display (hud) dimmer switch Heater & a/c control Hot at all times Incadescent dimming output Inflatable restraint steering wheel module coil Instrument cluster J/b (lower left "a" pillar) J/b (lower right "a" pillar) Left steering wheel controls Nca Nca b Nca h Park lamp input Park lamp relay control Prk lp relay Radio Rear fuse block (under left side of rear seat) Right steering wheel controls S225 S228 (in steering column harness) Sp301 (in body harness splicesaver, left side) Steering column fuse holder Switch fuse 2a Instrument Illumination Wiring Diagram (2 of 2) for Buick LeSabre Custom 2000 List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Buick LeSabre Custom 2000: 54 (auto hvac) (manual hvac) (left front door trim harn, between door & door trim panel) (right front door trim harn, between door & door trim panel) 5v ref A11 A12 B11 a2 B12 a6 B8 a4 C1 a4 C1 a5 C2 a12 C2 b12 C2 b2 C6 a11 Class 2 serial data line Computer data lines system D8 a3 Dash integration module (dim) (behind right side of dash, under sound insulator) Flat G200 Ground Headlamp switch I/p dimmer switch I/p dimmer switch input Incadescent dimming output Instrument cluster (ipc) Instrument panel integration module (ipm) (w/ auto hvac) climate control panel (ccp) (w/ manual hvac) (behind left side of dash) Interior lamp switch Interior lamp switch input J/b (lower left "a" pillar) Left front door module (upper right corner of door, behind trim panel) Left front heated seat switch (if equipped) Left front power door lock switch Left front power window switch Memory function switch (if equipped) Off Radio Rear integration module (rim) (behind upper left rear seat cushion) Right front door module (rfdm) (in right front door, near door latch) Right front heated seat switch (if equipped) Right front power door lock switch Right front power window switch Right side heater a/c control (if equipped) S204 (i/p harn, left side of dash) S302 S500 (left front door trim harn, between door & door trim panel) S501 S603 S604 (right front door trim harn, between door & door trim panel) Sensor return Simple bus interface (sbi) Twilight delay switch Wire
MEMORY SYSTEMS Memory Mirrors Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Memory Mirrors Wiring Diagram for Buick LeSabre Custom 2000: 41 (in left front door) s500 (on lower right "a" pillar) A up/down motor position input B left/right motor position input Batt(+) Battery Driver Driver 1 input Driver 2 input Driver door module (inside driver's door) Driver door switch assembly Driver outside rearview mirror Drvmdl fuse 10a E postion sensors return Exit G200 (on lower left "a) pillar) G203 Gnd Heating element feed Heating element return Hot at all times Interior lights system J left/right motor control K up/down motor control Left/ right motor Left/ right motor position sensor Left/right motor control M postion sensors feed Memory function switch Mirror heating element Motor control Nca Pass mdl fuse 10a Passenger door module (inside passenger's door) Passenger outside rearview mirror Rear fuse block S302 Simple bus interface Up/ down motor Up/ down motor position sensor Up/down l Memory Seat Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Memory Seat Wiring Diagram for Buick LeSabre Custom 2000: 97 (bonneville) (lesabre) (in left front door) s500 (in left front seat harn, below left front seat) (lumbar harn, in left front seat back) A6 b6 Batt Battery C10 C11 C12 C13 C14 C15 C16 Class 2 data D10 D11 D12 D13 D14 D15 D16 Driver Driver 1 input Driver 2 input Driver door lock switch Driver door module (inside driver's door) Driver seat adjuster switch Driver seat front vertical motor Driver seat front vertical position sensor Driver seat horizontal motor Driver seat horizontal position sensor Driver seat lumbar horizontal motor Driver seat lumbar horizontal position sensor Driver seat lumbar switch Driver seat lumbar vertical motor Driver seat lumbar vertical position sensor Driver seat rear vertical motor Driver seat rear vertical position sensor Driver seat recline motor Driver seat recliner position sensor E12 Exit Frnt hgt mtr sens in Front Front height sw input Frt vert dn ctrl Frt vert up ctrl Fwd Fwd-bk mtr sens in Fwd/bk sw unput G301 (under right front seat) Ground Horiz backward ctrl Horiz forward ctrl Hot at all times Interior lights system Lumbar down ctrl Lumbar down in Lumbar forward ctrl Lumbar in input Lumbar in/out sens in Lumbar out in Lumbar rearward ctrl Lumbar up ctrl Lumbar up in Lumbar up/dn sens in Mem fuse 10a Memory personalization funciton switch Memory seat module (under driver's seat) Nca Out Pnk Pnk a Position sensors feed Pwr seat circuit breaker 30a Rear Rear fuse block Rear height sw input Rear hgt mtr sens in Rear vert up ctrl Recline Recline back ctrl Recline forward ctrl Recline mtr sens in Recliner sw input Red S317 S317 (left seat harn, under left front seat) S319 S320 S321 (w/ heated seats) S330 S331 Simple bus interface Solid state Tan
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 4) for Buick LeSabre Custom 2000 List of elements for Power Distribution Wiring Diagram (1 of 4) for Buick LeSabre Custom 2000: 84 (under right front seat) g301 (upper right side of dash) g201 A/c clu fuse 30a A/c clutch relay Abs fuse 50a Accy fuse 15a Accy relay Air fuse 30a Air pump relay Air vacuum valve solenoid Automatic trans- mission Aux pwr fuse 20a B12 Battery C/ltr fuse Cigar lighter 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 Cr cont fuse 10a Cruise control module D12 Dis fuse 20a Drl relay E12 Electronic brake control module Evaporative emissions canister purge solenoid Fog/ drl fuse 15a From fog/ b drl fuse (diagram 1 of 4) From pcm c batt fuse (diagram 1 of 4) Front auxiliary power outlet Fuel injector G103 (front of right front fender) Generator Hdhi bml fuse 10a Hdhi bmr fuse 10a Hdlo bml fuse 10a Hdlo bmr fuse 10a Hdlp lo bm relay Hdlp hi bm relay Heated oxygen sensor Horn fuse 15a Horn relay Ign 1 fuse 10a Ign-1 relay Ignition control module Injr 1 fuse 10a Injr 2 fuse 10a Interior lights system Left high beam headlamp Left low beam headlamp Mass airflow sensor Outside moisture sensor Oxy sen fuse 10a Pcm batt fuse 10a Pcm ign fuse 10a Pnk Power- train control module Powertrain control module Rear auxiliary power outlet Red Right high beam headlamp Right low beam headlamp S203 S350 Start 1 relay Start circuit breaker 30a Start relay Starter solenoid Theft deterrent control module To body fuse (diagram 2 of 4) To cigar relay (diagram 2 of 4) To hdlp lo bm relay (diagram 1 of 4) To ign-1 relay (diagram 1 of 4) To underhood fuse block (diagram 4 of 4) Trans fuse 10a Underhood fuse block W/ cigar relay W/o cigar relay Wind- shield wiper motor Wind- shield wiper switch Wsw fuse 30a Power Distribution Wiring Diagram (2 of 4) for Buick LeSabre Custom 2000 List of elements for Power Distribution Wiring Diagram (2 of 4) for Buick LeSabre Custom 2000: 100 (2000) (2001) (body harn, near rear fuse block breakout) s308 (body harn, near rear fuse block breakout) s309 (body harn, pnk (in trunk lid) s411 (under left side of rear seat) g304 A10 A11 A12 Aldl fuse 10a Audio fuse 10a B12 Body fuse 15a Cd fuse 10a Cigar fuse 40a Cigar relay D10 D11 D12 Dash integration module Data link connector Dim fuse 10a Dimr fuse 10a Driver heated seat module Driver seat adjuster switch Driver seat lumbar switch E11 Evaporative emissions canister purge valve F/ pmp relay F/pmp fuse 20a From aux/pwr fuse (diagram 1 of 4) From battery a (diagram 1 of 4) From e cigar fuse (diagram 2 of 4) From f aldl fuse (diagram 2 of 4) Fuel door lock relay Fuel door unlock relay Generator Htdst lf fuse 10a Htdst rf fuse 10a Hvac batt fuse 10a Hvac control module Ign-1 fuse 10a Ign-1 relay Inflatable restraint sensing & diagnostic module Instrument cluster Instrument panel integration module Int lamp relay Int lp fuse 10a Left front turn signal/ park lamp Left license plate lamp Left rear side marker lamp Left side of dash) s216 Left tail/ stop lamp Lp pkl fuse 10a Lp pkr fuse 10a Mem fuse 10a Memory seat module driver Nca Nsbu fuse Park lp relay Passenger heated seat module Pnk Prk/rev fuse 10a Radio Rap fuse 20a Rap relay Rear fuse block Rear integration module Rear intrgration module Red Remote playback device- cd changer Reverse relay Right front turn signal/ park lamp Right license plate lamp Right rear side marker lamp Right tail/ stop lamp Rr defog fuse 40a Rr defog relay S224 S406 S407 Sir fuse 15a Steering column fuse holder Stoplight/ auto trans shift lock control switch Sun roof control module To drv mdl fuse (diagram 3 of 4) To ign-1 relay (diagram 2 of 4) To park lp relay (diagram 2 of 4) To rear fuse block (diagram 4 of 4) Trk/ rel relay Turn signal switch Under- hood fuse block Under- hood lamp Universal garage door opener Vent sol fuse 10a W/ electronic a/c W/ universal garage door opener W/o electronic a/c W/o universal garage door opener Power Distribution Wiring Diagram (3 of 4) for Buick LeSabre Custom 2000 List of elements for Power Distribution Wiring Diagram (3 of 4) for Buick LeSabre Custom 2000: 88 (1) (2) (in right front door) s602 (inst panel harn, near data link connector) s200 (under left front seat, near right seat harn clip) s323 (under left side of rear seat) g304 A10 A11 Abs fuse 15a Air inlet actuator Audio amp fuse 20a Audio amplifier Automatic level control compressor B10 Blower motor C11 C12 Coolant level sensor Dash inte- gration module Driver adjuster seat switch Driver air mix actuator Driver door module Drv mdl fuse 10a E10 E12 Elc fuse 30a Elc relay Electronic brake control module F h F12 From audio i amp fuse (diagram 3 of 4) From hvac g batt fuse (diagram 2 of 4) From stop h lp fuse (diagram 3 of 4) Front passenger door module Front passenger seat adjuster switch Front passenger seat recline switch Head up display Headlamp switch Heads up display Heads up display dimmer switch Heater & a/c control module Hvac blo fuse 30a Hvac fuse 10a Ign sw fuse 15a Ign-3 fuse 10a Ign-3 relay Inside rear view mirror Instrument cluster Instrument panel cluster Instrument panel module Ip fuse 10a Left heated seat module Left rear door module Memory seat module driver Mode actuator Nca Pass mdl fuse 10a Passenger air mix actuator Passenger air mix module Pwr seat circuit breaker 30a Pwr wdo circuit breaker 30a Rear fuse block Rear inte- gration module Red Remote control door lock receiver Right air temperature actuator Right heated seat module Right rear door module Right seat lumbar switch Rrdrmdl fuse 10a S221 S304 (body harn, near g300 breakout) S307 (body harn, near rear fuse block breakout) Stop lp fuse 15a Stoplamp/ auto trans shift lock control switch To ign sw fuse (diagram 3 of 4) To ign-3 3 relay (diagram 3 of 4) To ignition switch (diagram 4 of 4) To rear fuse block (diagram 4 of 4) Tsig/haz fuse 15a Turn signal/ hazard flasher module Underhood fuse block W/ 6 way seat W/ electronic a/c W/ memory seat W/ recline seat w/o recline seat W/o 6 way seat W/o electronic a/c W/o memory seat Power Distribution Wiring Diagram (4 of 4) for Buick LeSabre Custom 2000 List of elements for Power Distribution Wiring Diagram (4 of 4) for Buick LeSabre Custom 2000: 26 (body harn, 56 cm (22 in) rear of dash integration module breakout) s212 A/c clutch relay A11 Acc Dash integration module E10 Elc relay From accy relay (diagram 1 of 4) From ign sw fuse (diagram 3 of 4) From ign-1 relay (diagram 1 of 4) From ign-1 relay (diagram 2 of 4) From ign-3 relay (diagram 3 of 4) Ignition switch Lock Nca Park relay Pnk Powertrain control module Rear defog relay Rear fuse block Run S208 Start Theft deterrent control module Underhood fuse block Unlock
POWER DOOR LOCKS Power Door Lock Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Power Door Lock Wiring Diagram for Buick LeSabre Custom 2000: 53 (in left front door) (in right front door) (lower right "a" pillar) g203 (under left rear seat) g304 Actuator dr Air conditioning & seats systems Ajar Battery Class 2 data Computer data lines system Door ajar Door open Driver door door lock cylinder switch Driver door door module Driver door lock actuator Driver door switch assembly Driver power door lock switch Drvmdl fuse 10a E10 G200 (lower left "a" pillar) G301 (under right front seat) Grd Ground Hot at all times Ign sw fuse 20 15a Interior lights system Key cyl in Left rear door lock actuator Left rear door module Lock Open Pass mdl fuse 10a Passenger door lock actuator Passenger door lock cylinder switch Passenger door module Passenger power door lock switch Pwr wdo circuit breaker 30a Rear fuse block Remote function actuator module (below rear shelf) Right rear door lock actuator Right rear door module Rrdr mdl fuse 10a S302 S500 S602 S604 Sbi Seats system Serial data Sib Tan Unlock Unlock'
POWER MIRRORS Power Mirror Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Power Mirror Wiring Diagram for Buick LeSabre Custom 2000: 76 (2000 pont) (2000) (2001) (body harn left side of vehicle, near left power seat breakout) (except (except pontiac) (left front door trim harn, in left front door) s500 (on lower left corner of trunk, forward of tail lamp) (pon: on lower right front "a" pillar, buick: lower right corner passenger compt) 2000 pont) (pon: on lower left front "a" pillar, buick: lower front corner of passenger) A7 c3 Automatic day B1 c3 Battery (b+) Battery b+ Bus interface C11 c1 Computer data lines system Defogger system (heated mirror) Down ctrl Driver door lock switch Driver door module (ddm) Driver door switch asembly Drv mdl fuse 10a E2 c3 Ec feed Ec rerurn Ec return Exterior lights system F2 c3 Front passenger door module (fpdm) G200 G404 G900 G901 (2000 pont) g203 (except 2000 pont) Gnd Ground Heating element Horizontal motor Hot at all times Hot in on Ign 3 rr fuse 10a Ign 3 voltage Inside rear view mirror Interior lights system Keypad led Keypad pwr Keypad signal L mirror input Left Left ctrl Left mirror Left rear door module Mirror dn input Mirror l input Mirror r input Mirror up input Nca Night input sig Pass mdl fuse 10a Pnk Pwr wdo circuit breaker 30a R mirror input Rear fuse block (under left rear seat) Reverse lamp relay Reverse sig Right Right ctrl Right mirror Right rear door module S302 S344 Serial data Up ctrl Vehicle interface unit (viu) (2001 only) Vertical motor
POWER SEATS 6-Way & Recliner Power Seat Wiring Diagram for Buick LeSabre Custom 2000 List of elements for 6-Way & Recliner Power Seat Wiring Diagram for Buick LeSabre Custom 2000: 31 (bonneville) (le sabre) Driver seat adjuster switch Driver seat front vertical motor Driver seat horizontal motor Driver seat rear vertical motor Driver seat recline motor E12 Entire seat backward Entire seat forward F12 Front passenger seat adjuster switch Front passenger seat front vertical motor Front passenger seat horizontal motor Front passenger seat rear vertical motor Front passenger seat recline motor Front vertical down Front vertical up G301 (under right front seat, on forward crossmember) Hot at all times Nca Pwr seat circuit breaker 30a Rear fuse block Rear vertical down Rear vertical up Recline backward Recline forward S321 s324 (w/ heated seats) S322 (w/ heated seats) S323 (bonneville) Slice pack sp301 Tan 6-Way Power Seat Wiring Diagram for Buick LeSabre Custom 2000 List of elements for 6-Way Power Seat Wiring Diagram for Buick LeSabre Custom 2000: 23 Driver seat adjuster switch Driver seat front vertical motor Driver seat horizontal motor Driver seat rear vertical motor E12 Entire seat backward Entire seat forward F12 Front passenger seat adjuster switch Front passenger seat front vertical motor Front passenger seat rear horizontal motor Front passenger seat rear vertical motor Front vertical down Front vertical up G301 (under right front seat, on forward crossmember) Hot at all times Pwr seat circuit breaker 30a Rear fuse block Rear vertical down Rear vertical up S322 (le sabre w/ heated seats) S324 (le sabre w/ heated seats) Tan Heated Seats Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Heated Seats Wiring Diagram for Buick LeSabre Custom 2000: 46 A12 B12 Cntrld gnd Data Driver door module Driver heated seat back element Driver heated seat cushion element Driver heated seat module Driver heated seat switch Front passenger door module Front passenger heated seat back element Front passenger heated seat cushion element Front passenger heated seat module Front passenger heated seat switch G301 (under right front seat, on forward crossmember) Gnd Ground Heater cntrl Heating element Hi led Hot at all times Hot in on Htdstlf fuse 10a Htdstrf fuse 10a Ign Ign 3 rr fuse 10a Interior lights system Lo led Nca Off Off sw Pnk Rear fuse block Rear integration module (rim) (behind upper left rear seat cushion) Red S304 S321 S322 S500 S604 Simple bus Status output Sw signal Temp sense Temp senser Thermistor Recliner Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Recliner Wiring Diagram for Buick LeSabre Custom 2000: 16 Back Driver seat recline motor Driver seat recline switch E12 F12 Forward Front passenger recline motor Front passenger seat recline switch G301 (under right front seat, on forward crossmember) Hot at all times Nca Pwr seat circuit breaker 30a Rear fuse block S315 S316 Splice pack g301
POWER WINDOWS Power Window Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Power Window Wiring Diagram for Buick LeSabre Custom 2000: 52 (left front door trim harn, in left front door) s500 A7 c3 B1 c3 Battery (b+) Battery b+ Bus interface C2 c3 Computer data lines system D2 c3 Down Down input Driver door module (ddm) Driver door power door lock switch Driver door switch asembly Drv mdl fuse 10a E2 c3 E3 c1 Express down F2 c3 F6 c1 Front passenger door module (pdm) G200 (lower front corner of passenger compt) G203 (lower right corner of passenger compt) G301 (under right front seat) G304 (under left rear seat) Ground Hot at all times Interior lights system Left front window motor Left rear door module (lrdm) Left rear power window switch Left rear window motor Lf win ctrl Lock- out Lr win ctrl Memory function switch Pass mdl fuse 10a Pwr wdo circuit breaker 30a Rear fuse block (under left rear seat) Return Rf win ctrl Right front power window switch Right front window motor Right rear door module (rrdm) Right rear power window switch Right rear window motor Rr win ctrl Rrdrmdl fuse 10a S302 S602 Serial data Up input
RADIO Radio Wiring Diagrams for Buick LeSabre Custom 2000 List of elements for Radio Wiring Diagrams for Buick LeSabre Custom 2000: 79 (on lower right front "a" pillar) (under left front seat, forward of crossmember) A10 A11 A12 A13 A14 A15 A16 Antenna Audio comm Audio fuse 10a B10 B11 B12 B13 B14 B15 B16 Batt C10 C11 C12 C215 C216 Case gnd Cd fuse 10a Com audio in Compact disc changer Computer data lines system Dash integration module Data Enable Flat wire Fm comp sig Front glass antenna G300 G901 Gnd Grd Hot at all times Ill Inflatable restraint steering wheel module coil Interior lights system L audio in L audio out Left front door speaker Left front tweeter Left rear speaker Left side steering wheel controls Lf spkr Lr spkr Nca R audio in R audio out Radio Radio antenna module (on center rear of headliner) Rear fuse block Rear glass antenna Red Rf spkr Right front door speaker Right front tweeter Right rear speaker Right side steering wheel controls Rr spkr Serial data Shield grd Steering column fuse holder Sw1 Sw2 Sw3 Sw4 Sw5 Sw6 Sw7 Sw8 Switch fuse 2a Tan
SHIFT INTERLOCKS Shift Interlock Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Shift Interlock Wiring Diagram for Buick LeSabre Custom 2000: 28 (buick) (buick) nsbu fuse 10a (pontiac) (pontiac) prk/rev fuse 10a A12 Auto trans shiftlock control solenoid (beneath center console) Auto trans shiftlock control solenoid (on steering column) Automatic transaxle Automatic transaxle internal mode switch B12 C100 Computer data lines Data line G110 (front of engine, below ignition control module) G200 g900 (buick: lower left front "a" pillar pontiac: on left front door pillar) G901 (on lower right front "a" pillar) Hot at all times Hot in on Park relay Park relay control Powertrain control module (in air cleaner housing) Rear fuse block (under left rear seat) Rear integration module (behind upper left rear seat cushion) S225 S228 Tcc/ cruise release switch (on brake pedal bracket) W/center console W/o center console
STARTING/CHARGING Charging Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Charging Wiring Diagram for Buick LeSabre Custom 2000: 30 (not used) a (under right rear seat, right of battery on floor pan) g303 A11 A12 B12 Battery Battery volt indicator Battery volts high Battery volts low Check charge system Dash integration module (dim) (behind right side of dash, under sound insulator) Dim fuse 10a Driver information center E11 Flat wire Gen term f mon Gen term l ctrl Generator l Hot at all times Instrument panel cluster Nca Powertrain control module (pcm) (in air cleaner housing) Rear fuse block (under left rear seat) Red S217 Serial class 2 data Serial data class 2 Starter solenoid System voltage measurement Underhood fuse block (right front side of engine compartment) Starting Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Starting Wiring Diagram for Buick LeSabre Custom 2000: 29 Acc Battery Computer data lines system G303 (under right rear seat, right of battery on floor pan) Ground distribution system (dash integration module (dim)) Hold in coil Hot in run & start Ign crank sense Ign sw fuse 15a Ignition switch Lock Nca Note: refer to power distribution system: ign-1 relay Pcm (ign) fuse 10a Power distribution system Powertrain control module (pcm) (in air cleaner housing) Pull in coil Rear fuse block (under left rear seat) Run Serial data class 2 Start Start 1 relay Start circuit breaker 30a Starter ctrl Starter motor Starter solenoid Starting/ charging system (charging circuit) Underhood fuse block (right front side of engine compartment) Unlock
SUPPLEMENTAL RESTRAINTS Supplemental Restraint Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Supplemental Restraint Wiring Diagram for Buick LeSabre Custom 2000: 56 A10 A11 A12 A13 A14 A15 A16 A17 A18 A5 (or a6) Air bag indicator B1 (or b2) Buick Buick w/heads up display Case ground Computer data lines system Dash integration module (dim) (behind right side of dash, under sound insulator) Data link connector (dlc) (partial) (under lower left side of dash) Driver frontal high Driver frontal low Driver inflatable restraint side impact inflator module Driver inflatable restraint side impact sensor (sis) (at base of left "b" pillar, behind trim panel) Driver side high Driver side low Driver side sens rtn Driver side sensor G302 (under center console, near inflatable restraint sensing & diagnostic module (sdm)) Ground Hot in run & start Ignition Inflatable restraint i/p module Inflatable restraint sensing & diagnostic module (sdm) (under rear of center console, mounted to floor pan) Inflatable restraint steering wheel module Inflatable restraint steering wheel module coil Instrument cluster Left front seat belt switch (closed w/seat belt unbuckled) in seat belt assembly, near floor) Nca Pass frontal high Pass frontal low Pass side sens rtn Passenger inflatable restraint side impact inflator module Passenger inflatable restraint side impact sensor (sis) (at base of right "b" pillar, behind trim panel) Passenger side high Passenger side low Passenger side sens Pontiac Pontiac & buick w/o heads ip display Pontiac & buick w/o heads up display Rear fuse block (under left rear seat) S202 Seat belt sw input Seat belt sw return Serial data class 2 Shorting bar Sir fuse 15a Tan
TRANSMISSION
3.8L 3.8L VIN K, A/T Wiring Diagram for Buick LeSabre Custom 2000 List of elements for 3.8L VIN K, A/T Wiring Diagram for Buick LeSabre Custom 2000: 79 internal mode switch automatic transaxle (rear of engine, near thermostat housing) engine coolant temperature (ect) sensor (right front of transaxle, below power steering pump) vehicle speed sensor (vss) 1-2 shift sol 2-3 shift sol 5 volt ref A/t fluid temp A/t iss low A/t speed sens Abs/ tcc switch (near brake pedal) Acc Automatic transaxle Automatic transaxle (4t40-e/ 4t45-e) Automatic transaxle fluid pressure manual valve position switch Automatic transaxle fluid temperature sensor Automatic transaxle input shaft speed sensor B c Battery Bonneville Bonneville le sabre Compiuter data lines system Cruise control system E e Ect sensor gnd Ect sensor in G115 (rear of engine) Head up display, ignition key cyl lamp Hot at all times Hot in run or start Ign 1 fuse 10a Ignition Ignition 1 Ignition switch (pigtailed for le sabre) Instrument cluster Instrument cluster, turn siganl switch Ip fuse 10a Lesabre Lock Malfunction indicator lamp Mil control Off Pcm batt fuse 10a Pcm ground Pcm ign fuse 10a Pnk Powertrain control module (pcm) (near air cleaner housing) Press sol high Press sol low Press sw a Pressure control sol Rear fuse block (under left rear seat) Red Rev Run S212 S216 Sensor return Serial data Shift sol a Shift sol b Start Tan Tcc pwm sol Tcc rel Tcc release sw Tcc sw Throttle position (tp) sensor (on throttle body assembly) Tp sensor gnd Tp sensor in Trans fuse 10a Trans range b Trans range c Trans sw a Trans sw b Trans sw c Trans sw p Underhood fuse block (right front side of engine compt) Vss hi (signal) Vss lo (ground)
TRUNK, TAILGATE, FUEL DOOR Trunk Release Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Trunk Release Wiring Diagram for Buick LeSabre Custom 2000: 26 A10 c3 A9 c2 Aldl fuse 10a B nca B12 Body fuse 15a C1 c2 Class ii data Computer data lines system Driver's door module (in left front door) Driver's door switch assembly G200 (left front door pillar) G405 (lower right corner of trunk) Ground Hot at all times Rear compartment lid release actuator (on center rear of luggage compt) Rear compartment lid release switch Rear fuse block (under left rear seat) Rear integration module (rim) (behind upper left rear seat cushion) Rr compt lid release actuator control S308 (w/ug1) S500 (left front door trim harness, in left front door) Simple bus Sw input Tan/ Trk/ rel relay
WARNING SYSTEMS Warning System Wiring Diagrams for Buick LeSabre Custom 2000 List of elements for Warning System Wiring Diagrams for Buick LeSabre Custom 2000: 41 (under left side of dash) A11 A12 A14 A15 A16 Belt sw input Belt sw ret Class 2 data Computer data lines system Dash integration module (behind right side of dash, under sound insulator) Dr ajar input Dr open input Driver door lock actuator (in door) Driver door module (inside driver door) Flasher module G200 (lower front corner of passenger compt, on left front door pillar) Ground Head Head sw input Headlamp switch Heater & a/c control (center of dash) Inflatable restraint sensing & diagnostic module (under rear of center console, mounted to floor pan) Instrument cluster Instrument panel integration module (behind left side of dash) Key buzzer switch Key in signal Left front seat belt switch (closed w/belt unbuckled) Left turn in Nca Park Park sw input Powertrain control module (in air cleaner housing) Radio Right turn in S250 S251 Tan Turn signal/hazard W/auto a/c W/manual a/c
WIPER/WASHER Wiper/Washer Wiring Diagram for Buick LeSabre Custom 2000 List of elements for Wiper/Washer Wiring Diagram for Buick LeSabre Custom 2000: 40 150k 24,000 ohms 270k 39k 680k 82k Accy fuse 15a Dash integration module (dim) (behind right side of dash, under sound insulator) G101 (mounted to inner body panel, forward of underhood fuse block) G102 (near left strut tower, on frame rail) G404 (on lower left corner of trunk forward of tail lamp) Ground Headlamps on w/wipers input High High speed input Hot in run & accessory If equipped Ignition Low Low min Max Min Mist Nca Off Off max Outside moisture sensor (if equipped) (above inside rearview mirror) Rain sense ctrl Rain sense input Red S334 Underhood fuse block (right front side of engine compartment) Wash Washer switch Windshield washer pump motor (in bottom of windshield washer reservoir) Windshield wiper motor (behind left front strut tower) Windshield wiper/washer switch Wiper speed sig Wiper switch Wsw fuse 30a
