Buick LeSabre Limited 1998 - 1998 GENERAL MOTORS Bonneville, Eighty Eight, LeSabre, LSS & Regency

Buick LeSabre Limited 1998 - BUZZERS, RELAYS & TIMERS

Buick LeSabre Limited 1998 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Compressor Relay (3.8L VIN K)	On center rear of engine compartment, below right maxi fuse block. See Fig. 1 .
A/C Compressor Relay (3.8L VIN 1)	On center rear of engine compartment, below right maxi fuse block. See Fig. 2 .
Blower Relay (3.8L VIN 1)	On center rear of engine compartment, below right maxi fuse block. See Fig. 2 .
Blower Relay (3.8L VIN K)	On center rear of engine compartment, below right maxi fuse block.
Blower Relay (High)	On center rear of engine compartment, below right maxi fuse block.
Cooling Fan Relay, High Speed (3.8L VIN K)	On rear of engine compartment, below left maxi fuse block. See Fig. 1 .
Cooling Fan Relay, High Speed (3.8L VIN 1)	On rear of engine compartment, below left maxi fuse block. See Fig. 2 .
Cooling Fan Relay, Low Speed (3.8L VIN K)	On rear of engine compartment, below left maxi fuse block. See Fig. 1 .
Cooling Fan Relay, Low Speed (3.8L VIN 1)	On rear of engine compartment, below left maxi fuse block. See Fig. 2 .
Fuel Pump Relay	In dash junction block.
Hazard Flasher	Under left side of dash, on right side of steering column brace.
Horn Relay	On rear of engine compartment, below right maxi fuse block.
Inflator Timer Relay	On right front of luggage compartment, near wheelwell.
Power Antenna Relay	In right side of luggage compartment, attached to antenna mast.
Starter Enable Relay	Behind left side of dash, left of steering column.
Turn Signal Flasher	Under left side of dash.

Buick LeSabre Limited 1998 - CIRCUIT PROTECTION DEVICES

Buick LeSabre Limited 1998 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Dash Fuse Block (3.8L VIN K)	Behind left side of dash, on dash panel sound insulator. See Fig. 1 .
Dash Fuse Block (3.8L VIN 1)	Behind left side of dash, on dash panel sound insulator. See Fig. 2 .
Dash Junction Block (3.8L VIN K)	Behind right side of dash. See Fig. 1 .
Dash Junction Block (3.8L VIN 1)	Behind right side of dash. See Fig. 2 .
Diode, A/C Compressor Clutch	On wiring harness, near A/C compressor.
Diode, Brake Warning	Behind left side of dash, near dash fuse block.
Maxi Fuse Block, Left/Right (2) (3.8L VIN K)	On center rear of engine compartment, near firewall. See Fig. 1 .
Maxi Fuse Block, Left/Right (2) (3.8L VIN 1)	On center rear of engine compartment, near firewall. See Fig. 2 .

Buick LeSabre Limited 1998 - CONTROL UNITS

Buick LeSabre Limited 1998 CONTROL UNITS LOCATION

Component	Location
Adaptive Lamp Monitor Control Module	Behind dash, near radio.
Blower Control Module	On right side of firewall, near blower motor.
Body Control Module (MALL)	Behind right side of dash, near rear of glove box.
Bose Amplifier	Behind dash, near radio.
Computer Command Ride (CCR) Module	Below left front seat.
Cruise Control Module	On left side of firewall.
Electronic Brake (& Traction) Control Module (EBCM/EBTCM)	On left front of engine compartment.
Electronic Compass Module	Below rear deck shelf.
Express Down Module	In lower center of left front door.
Fuel Pump Control Module (3.8L VIN 1)	On front left side of luggage compartment.
Head-Up Display (HUD) Module	On top left side of dash.
Heater & A/C Programmer	Under right side of dash, near glove box.
Ignition Control Module (ICM) (3.8L VIN K)	On top left front of engine. See Fig. 1 .
Ignition Control Module (ICM) (3.8L VIN 1)	On top left front of engine. See Fig. 2 .
Inflatable Restraint Sensing & Diagnostic Module (SDM)	Below right front seat.
Lamp Control Module (LCM)	Behind center of dash.
Lamp Driver Module (LDM)	Behind right side of dash.
Memory Seat/Mirror Module	Under driver's seat.
Panel Dimmer Module	On driver's knee bolster.
PASS Key Theft Deterrent Module	Behind right side of dash, near rear of glove box.
Powertrain Control Module (PCM) (3.8L VIN K)	On left front corner of engine compartment. See Fig. 1 .
Powertrain Control Module (PCM) (3.8L VIN 1)	On left front corner of engine compartment. See Fig. 2 .
Pneumatic Seat Module	Under center console.
Radio Antenna Module	On left rear sail panel.
Remote Dimmer Module	Behind left side of dash, right of steering column.
Remote Function Actuator (RFA) Module	Behind right side of dash, near rear of glove box.
Seat Control Module	Under left front seat.
Sun Roof Control Module	Near right front of sun roof opening.
Windshield Wiper/Washer Module	On left rear of engine compartment, near brake master cylinder.

Buick LeSabre Limited 1998 - MOTORS

Buick LeSabre Limited 1998 MOTORS LOCATION

Component	Location
Antenna Motor	On right side of luggage compartment.
Automatic Level Control Compressor	Below rear of vehicle, right of rear frame rail.
Blower Motor	On center rear of engine compartment, below left maxi fuse block.
Cooling Fan Motor (2)	In front of engine compartment, behind radiator.
Door Lock Actuator (4)	In rear of each door.
Head-Up Display (HUD) Adjuster Motor	On top left side of dash.
Lumbar Air Pump	Under each respective front seat.
Power Seat Motor (3)	Below front portion of front seats.
Power Window Motor (4)	In lower center of each door.
Seat Air Pump	Under left front seat.
Sun Roof Motor	In front center of passenger compartment, above headliner.
Temperature Valve Actuator	Under right side of dash, on right of HVAC module.
Windshield Washer Pump	In bottom of windshield washer reservoir.

Buick LeSabre Limited 1998 - SENDING UNITS & SENSORS

Buick LeSabre Limited 1998 SENDING UNITS & SENSORS LOCATION

Component	Location
A/C Pressure Sensor	On hose assembly, near A/C compressor.
ABS Wheel Sensors	On each wheel hub assembly.
Ambient Light Sensor	In left center of dash, in defroster grille.
Ambient Temperature Sensor	In front of engine compartment near hood latch.
Automatic Level Control Sensor	Under rear of vehicle, near rear suspension.
Boost/Manifold Absolute Pressure (MAP) Sensor (Pontiac)	On left rear of engine, near exhaust gas recirculation valve.
Camshaft Position (CMP) Sensor (3.8L VIN K)	On front of engine, below water pump. See Fig. 1 .
Camshaft Position (CMP) Sensor (3.8L VIN 1)	On front of engine, below water pump. See Fig. 2 .
Crankshaft Position (CKP) Sensor (3.8L VIN K)	On front of engine, behind crank pulley. See Fig. 1 .
Crankshaft Position (CKP) Sensor (3.8L VIN 1)	On front of engine, behind crank pulley. See Fig. 2 .
Engine Coolant Temperature (ECT) Sensor (3.8L VIN K)	On rear of engine, near thermostat housing. See Fig. 1 .
Engine Coolant Temperature (ECT) Sensor (3.8L VIN 1)	On rear of engine, near thermostat housing. See Fig. 2 .
Engine Oil Pressure Sensor (3.8L VIN K)	On front of engine, below power steering pump. See Fig. 1 .
Engine Oil Pressure Sensor (3.8L VIN 1)	On front of engine, below power steering pump. See Fig. 2 .
Fuel Level Sender	On top of fuel tank.
Fuel Tank Pressure Sensor (3.8L VIN K)	On top of fuel tank.
Heated Oxygen Sensor 1 (HO2S) (3.8L VIN K)	In exhaust manifold. See Fig. 1 .
Heated Oxygen Sensor 1 (HO2S) (3.8L VIN 1)	In exhaust manifold. See Fig. 2 .
Heated Oxygen Sensor 2 (HO2S)	In exhaust system, rear of catalytic converter.
Inflatable Restraint Front End Discriminating Sensor	On radiator top support bracket, in front center of vehicle.
Inside Air Temperature Sensor	In left knee bolster, right of steering column.
Intake Air Temperature (IAT) Sensor (3.8L VIN K)	In air intake duct, on left side of engine compartment. See Fig. 1 .
Intake Air Temperature (IAT) Sensor (3.8L VIN 1)	In air intake duct, on left side of engine compartment. See Fig. 2 .
Knock Sensor (KS) (Bank No. 1) (3.8L VIN K)	On lower front of engine block, near starter. See Fig. 1 .
Knock Sensor (KS) (Bank No. 1) (3.8L VIN 1)	On lower front of engine block, near starter. See Fig. 2 .
Knock Sensor (KS) (Bank No. 2) (3.8L VIN K)	On lower rear of engine block, near oil filter. See Fig. 1 .
Knock Sensor (KS) (Bank No. 2) (3.8L VIN 1)	On lower rear of engine block, near oil filter. See Fig. 2 .
Manifold Absolute Pressure (MAP) Sensor (3.8L VIN K)	On top right side of engine. See Fig. 1 .
Manifold Absolute Pressure (MAP) Sensor (3.8L VIN 1)	On top right side of engine. See Fig. 2 .
Mass Air Flow (MAF) Sensor (3.8L VIN K)	In throttle body assembly. See Fig. 1 .
Mass Air Flow (MAF) Sensor (3.8L VIN 1)	In throttle body assembly. See Fig. 2 .
Position Sensor, Forward/Back	On underside of driver's seat.
Position Sensor, Front Height	On underside of driver's seat.
Position Sensor, Rear Height	On underside of driver's seat.
Position Sensor, Recline	On underside of driver's seat.
Strut Actuator (4)	In each strut.
Sunload Temperature Sensor (Right)	On right side of dash, near defroster outlet.
Sunload Temperature Sensor (Left)	On left side of dash, near defroster outlet.
Throttle Position (TP) Sensor (3.8L VIN K)	On throttle body assembly. See Fig. 1 .
Throttle Position (TP) Sensor (3.8L VIN 1)	On throttle body assembly. See Fig. 2 .
Vehicle Speed Sensor (VSS) (3.8L VIN K)	On lower right rear of engine, below oil filter. See Fig. 1 .
Vehicle Speed Sensor (VSS) (3.8L VIN 1)	On lower right rear of engine. See Fig. 2 .

Buick LeSabre Limited 1998 - SOLENOIDS & SOLENOID VALVES

Buick LeSabre Limited 1998 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Brake Pressure Modulator Valve (BPMV)	On left front of engine compartment, near base of radiator support.
Boost Control Solenoid (3.8L VIN 1)	On top rear left of engine, near engine oil fill. See Fig. 2 .
Exhaust Gas Recirculation (EGR) Valve (3.8L VIN K)	On top left rear of engine, near throttle body. See Fig. 1 .
Evaporative Emissions (EVAP) Canister Purge Valve (3.8L VIN K)	On top right rear of engine, near generator. See Fig. 1 .
Evaporative Emissions (EVAP) Canister Purge Valve (3.8L VIN 1)	On top right rear of engine, near generator. See Fig. 2 .
Evaporative Emissions (EVAP) Canister Vent Solenoid (3.8L VIN K)	On left front of engine compartment, on top of canister.
Fuel Door Lock Solenoid	In left side of luggage compartment, near fuel door.
Heater & A/C Vacuum Solenoid	Under right side of dash, on right of HVAC module.
Idle Air Control (IAC) Valve (3.8L VIN K)	On throttle body assembly. See Fig. 1 .
Idle Air Control (IAC) Valve (3.8L VIN 1)	On throttle body assembly. See Fig. 2 .
Inflator Solenoid	On right front of luggage compartment, near wheelwell.
Rear Compartment Lid Release Solenoid	On center rear of luggage compartment, near latch.
Seat Solenoid Valve Assembly (2)	On underside of respective front seat.
Shift Interlock Solenoid (Column Shifter)	On underside of steering column, near mounting bracket.
Shift Interlock Solenoid (Console Shifter)	Under center console, on shifter assembly.
Variable Power Steering Solenoid	In rear of engine compartment, on power steering rack.

Buick LeSabre Limited 1998 - SWITCHES

Buick LeSabre Limited 1998 SWITCHES LOCATION

Component	Location
ABS/TCC Switch	Near brake pedal.
Brake Fluid Level Switch	In master cylinder reservoir.
Coolant Level Switch	In right radiator tank.
Engine Oil Level Switch	On center front of engine, in side of oil pan.
Engine Oil Pressure Switch (3.8L VIN K)	On front of engine, below power steering pump. See Fig. 1 .
Engine Oil Pressure Switch (3.8L VIN 1)	On front of engine, below power steering pump. See Fig. 2 .
Hood Ajar Switch	On left side of radiator support.
Inflator Switch	Center rear of luggage compartment.
Lateral Acceleration Switch (Pontiac)	Below left front seat.
Park Brake Switch	On top of parking brake pedal assembly.
Park/Neutral Position (PNP) Switch (3.8L VIN K)	On left side of transaxle. See Fig. 1 .
Park/Neutral Position (PNP) Switch (3.8L VIN 1)	On left side of transaxle. See Fig. 2 .
Seat Belt Switch	In driver's seat belt retractor.
Stoplamp/BTSI Switch	Near brake pedal.
Windshield Washer Fluid Level Switch	On left side of engine compartment, in windshield washer fluid reservoir.

Buick LeSabre Limited 1998 - MISCELLANEOUS

Buick LeSabre Limited 1998 MISCELLANEOUS LOCATION

Component	Location
Data Link Connector (DLC) (3.8L VIN K)	Under left side of dash, on dash sound insulator. See Fig. 1 .
Data Link Connector (DLC) (3.8L VIN 1)	Under left side of dash, on dash sound insulator. See Fig. 2 .
Fuel Injector (6) (3.8L VIN K)	On top of engine, in intake runners. See Fig. 1 .
Fuel Injector (6) (3.8L VIN 1)	On top of engine, in intake runners. See Fig. 2 .
Memory Seat/Mirror Module Diagnostic Connector	On underside of driver's seat.
Resistor, Blower Motor	On center rear of engine compartment, below right maxi fuse block
Resistor, Cooling Fan (2)	Near left cooling fan motor.
Resistor, Daytime Running Lamps (DRL)	On left front inner fender panel, near horn.

Buick LeSabre Limited 1998 - CONNECTORS

Buick LeSabre Limited 1998 CONNECTORS LOCATION

Component	Location
C100 (Gray, 20 Pin)	Below throttle body.
C101 (Black, 66 Pin)	Near right strut tower.
C107 (Black, 8 Pin)	Near ignition coils.
C119 (1 Pin)	Near EBTCM.
C120 (Light Gray, 2 Pin)	Left rear of engine compartment.
C121 (Light Gray, 2 Pin)	Right rear of engine compartment.
C122 (Black, 5 Pin)	Right front of engine compartment.
C123 (Gray, 5 Pin)	Left front of engine compartment.
C200 (Black, 116 Pin)	Under center of dash.
C202 (Natural, 48 Pin)	Left of steering column.
C205 (Black, 8 Pin)	On top of front pillar.
C206 (Black, 3 Pin)	Under center of dash.
C221 (3 Pin)	On top of front pillar.
C301 (2 Pin)	Under right front seat.
C302 (Black, 2 Pin)	Under left front seat.
C303 (2 Pin)	Under left front seat.
C304 (Blue, 8 Pin)	Under front of center console.
C312 (Black, 2 Pin)	Under left front seat.
C313 (2 Pin)	Under right front seat.
C323 (2 Pin)	Under right front seat.
C345 (Black, 2 Pin)	Under left front seat.
C360 (2 Pin)	Under console trim plate.
C400 (Black, 4 Pin)	Left rear of rear compartment.
C401 (Black, 4 Pin)	Center rear of rear compartment.
C402 (Black, 4 Pin)	Right rear of rear compartment.
C404 (6 Pin)	Left rear of rear compartment.
C405 (6 Pin)	Right rear of rear compartment.
C406 (Black, 3 Pin)	Left rear of rear compartment.
C410 (Black, 3 Pin)	Left rear of rear compartment.
C411 (Black, 3 Pin)	Right rear of rear compartment.
C430 (Black, 3 Pin)	Left rear of rear compartment lid.
C431 (Black, 3 Pin)	Right rear of rear compartment lid.
C440 (Black, 6 Pin)	Under right side of vehicle.
C502 (Black, 6 Pin)	Lower front of left front door.
C503 (3 Pin)	Lower front of left front door.
C602 (Black, 4 Pin)	Lower front of right front door.
C602 (3 Pin)	Lower front of right front door.
C603 (Black, 6 Pin)	Lower front of right front door.
C702 (Black, 4 Pin)	Lower front of left rear door.
C802 (Black, 4 Pin)	Lower front of right rear door.

Buick LeSabre Limited 1998 - GROUNDS

Buick LeSabre Limited 1998 GROUNDS LOCATION

Component	Location
G100	Under ignition control module bracket.
G101	Below power steering pump.
G102	Near battery.
G104	Near air cleaner housing.
G105	Near battery.
G106	Near air cleaner housing.
G201	Behind right kick panel trim plate.
G202	Behind left kick panel trim plate.
G301	Under right front seat.
G402	On rear edge of wheelwell.

Buick LeSabre Limited 1998 - SPLICES

Buick LeSabre Limited 1998 SPLICES LOCATION

Component	Location
S100	In engine harness, 34 cm from G101 breakout.
S104	In body harness, 25 cm from cooling fan relay.
S106	In engine harness, 6 cm from A/C compressor clutch.
S108	In body harness, 37.5 cm from C121.
S110	In engine harness, 6.5 cm from generator harness breakout.
S114 (3.8L VIN 1)	In engine harness, 11 cm from fuel injector breakout.
S114 (3.8L VIN K)	In engine harness, 12 cm from heated oxygen sensor connector breakout.
S121	In engine harness, 32 cm from C101.
S123	In engine harness, 53.5 cm from C101.
S126 (3.8L VIN 1)	In engine harness, 13 cm from mass airflow sensor.
S126 (3.8L VIN K)	In engine harness, 18.5 cm from mass airflow sensor.
S128	In body harness, 6.5 cm from engine cooling fan breakout.
S130	In engine harness, 25.5 cm from C101.
S150	In headlamp harness, 10 cm from C123.
S151	In headlamp harness, 10 cm from C122.
S201	In body harness, 10.5 cm from C101 breakout.
S202	In body harness, 4 cm from C101 breakout.
S203	In body harness, 43.5 cm from dash fuse block.
S204	In I/P harness, 10.5 cm from instrument cluster breakout.
S205	In body harness, 63.5 cm from dash fuse block.
S206	In I/P harness, 60 cm from radio breakout.
S207	In body harness, 12 cm from center dash harness channel breakout.
S211	In body harness, 4 cm from C202 breakout.
S213 (Buick)	In I/P harness, 4 cm from C200 breakout.
S213 (Oldsmobile)	In I/P harness, 26 cm from C200.
S213 (Pontiac)	In I/P harness, 6 cm from glove compartment light breakout.
S214 (Buick)	In I/P harness, 10.5 cm from C200 breakout.
S214 (Oldsmobile)	In I/P harness, 30 cm from C200.
S214 (Pontiac)	In I/P harness, 6.5 cm from glove compartment light breakout.
S215	In body harness, 73.5 cm from I/P fuse block.
S217	In body harness, 20 cm from C202.
S218	In body harness, 49.5 cm from left footwell harness channel.
S223	In body harness, 4 cm from IPC breakout.
S224	In I/P harness, 17 cm from radio breakout.
S225	In body harness, 49.5 cm from left footwell harness channel.
S227	In body harness, 17 cm from top edge of left kick panel channel.
S229	In I/P harness, 26 cm from C200.
S234 (Buick)	In I/P harness, 10 cm into C200 breakout.
S234 (Oldsmobile)	In I/P harness, 32 cm from C200.
S234 (Pontiac)	In I/P harness, 3 cm from radio breakout.
S237	In body harness, 22 cm from center dash harness channel breakout.
S240	In body harness, 12 cm into heater & A/C programmer breakout.
S241	In body harness, 40 cm from interior lamp control module breakout.
S242	In I/P harness, 4 cm into instrument cluster breakout.
S243	In I/P harness, 18 cm from C200.
S249 (Buick)	In I/P harness, 9 cm from instrument cluster breakout.
S249 (Oldsmobile)	In I/P harness, 17 cm from C200.
S249 (Pontiac)	In I/P harness, 3.5 cm from instrument cluster breakout.
S251	In body harness, 10 cm from dash harness channel end.
S254	In body harness, 23.5 cm from left footwell harness channel.
S256	In body harness, 33.5 cm from interior lamp control module breakout.
S262	In body harness, 27.5 cm from P100.
S270	In body harness, 8 cm from dash harness channel end.
S271	In body harness, 12 cm into C101 breakout.
S273	In body harness, 17 cm into C101 breakout.
S276	In I/P harness, 43 cm from C200.
S279	In body harness, 2 cm from side dash harness channel end.
S282	In body harness, 56.5 cm from dash fuse block.
S287	In cigar lighter harness.
S288	In body harness, 39 cm from top footwell harness channel.
S292	In body harness, 62.5 cm from left kick panel channel.
S293	In body harness, 4 cm from instrument cluster breakout.
S295	In body harness, 7 cm from dash harness channel end.
S297	In body harness, 23.5 cm from instrument cluster breakout.
S299	In instrument panel harness, 12 cm into instrument cluster breakout.
S307	In body harness, 33 cm from G201 breakout.
S308	In body harness, 33 cm from G201 breakout.
S314	In console harness, 10 cm from C304.
S332	In headliner harness, 23.5 cm from automatic day night mirror breakout.
S334	In headliner harness, 73.0 cm from left rear courtesy light.
S400 (Buick)	In body harness, 121.5 cm from P408.
S400 (Oldsmobile)	In body harness, 10 cm from G402 breakout.
S400 (Pontiac)	In body harness, 10 cm from G402 breakout.
S401	In left taillamp harness.
S402	In right taillamp harness.
S403	In left taillamp harness.
S405	In right taillamp harness.
S415	In body harness, 22.5 cm from P403.
S419	In body harness, 12.5 cm from P408.
S428	In rear compartment lid harness, near C406.
S430	In left rear lamp harness, near C404.
S432	In left rear lamp harness, near C405.
S435	In left rear side marker harness, 11.5 cm from P410.
S436	In right rear side marker harness, 11.5 cm from P410.
S437	In left rear side marker harness, 16 cm from P411.
S438	In right rear side marker harness, 16 cm from P440.
S441	In automatic level control harness, 10 cm from C440.
S501	In body harness, 43 cm from P500.
S603	In body harness, 5.5 cm from P500.