Buick Regal LS 2000 - 2000 GENERAL MOTORS Century & Regal

Buick Regal LS 2000 - BUZZERS, RELAYS & TIMERS

Buick Regal LS 2000 BUZZERS, RELAYS & TIMERS

Component	Component Location
Accessory Time Delay (RAP) Relay	Behind glove box, mounted to underside of cross-car beam. See Fig. 9.
Back-Up Lamp Relay	Behind left side of dash, mounted to multi-purpose bracket near BCM. See Fig. 8.
Fuel Pump Relay	In underhood accessory wiring junction block, mounted to right strut tower. See Fig. 11.
Hazard Lamp/Turn Signal Lamp Flasher	Below left side of dash, mounted on multi-purpose bracket near BCM. See Fig. 8.
Headlamp Relay	Behind glove box, mounted to underside of cross-car beam. See Fig. 9.
Rear Compartment Lid Release Relay	Behind glove box, mounted to underside of cross-car beam. See Fig. 9.
Rear Window Defogger Relay	Behind glove box, mounted to underside of cross-car beam. See Fig. 9.

Buick Regal LS 2000 - CIRCUIT PROTECTION DEVICES

Buick Regal LS 2000 CIRCUIT PROTECTION DEVICES

Component	Component Location
Fuse Block	Behind right side of dash, in right door opening.
Fusible Links (3.1L VIN M)	Left side of engine, on starter assembly. See Fig. 3.
Underhood Accessory Wiring Junction Block	Mounted to right strut tower.

Buick Regal LS 2000 - CONTROL UNITS

Buick Regal LS 2000 CONTROL UNITS

Component	Component Location
Automatic Transmission Control (BTSI)	Center of console.
Blower Motor Control Module	In right side of heater-A/C module.
Body Control Module (BCM)	Behind left side of dash, left of steering column.
Cruise Control Module	Front of left strut tower.
Electronic Brake Control Module (EBCM)	At left side of engine compartment, near strut tower.
Engine Coolant Level Indicator Module	Mounted on right side of radiator.
Ignition Control Module (ICM) (3.1L VIN M)	Top right side of engine. See Fig. 1.
Ignition Control Module (ICM) (3.8L VIN K)	Top front of engine.
Ignition Control Module (ICM) (3.8L VIN 1)	Top front of engine.
Inflatable Restraint Sensing & Diagnostic Module (SDM)	Below carpet, under right front seat.
Powertrain Control Module (PCM)	Left front side of engine compartment, in air cleaner assembly.
Radio Antenna Module	On rear window header panel, above headliner.
Remote Control Door Lock Receiver (RCDLR)	Left side of dash, on right side of instrument cluster.
Seat Heater Control Module	Below right side of driver's seat.
Sun Roof Module (Express Open)	Right corner of sun roof.

Buick Regal LS 2000 - MOTORS

Buick Regal LS 2000 MOTORS

Component	Component Location
Blower Motor	Behind right side of dash, in heater-A/C module. See Fig. 10.
Electric Actuator (Left)	Left side of heater-A/C module.
Electric Actuator (Right)	Right side of heater-A/C module. See Fig. 10.
Engine Coolant Fan Motor (Left)	On left side of radiator.
Engine Coolant Fan Motor (Right)	On right side of radiator.
Idle Air Control (IAC) Valve (3.1L VIN M)	On throttle body assembly. See Fig. 2.
Idle Air Control (IAC) Valve (3.8L VIN K)	On throttle body assembly. See Fig. 4.
Idle Air Control (IAC) Valve (3.8L VIN 1)	On throttle body assembly. See Fig. 4.
Sun Roof Actuator	Center rear of sun roof module.
Windshield Washer Pump	On right front corner of engine compartment, in washer fluid reservoir.
Windshield Wiper Motor	On left side of firewall, below air inlet screen.

Buick Regal LS 2000 - SENDING UNITS & SENSORS

Buick Regal LS 2000 SENDING UNITS & SENSORS

Component	Component Location
A/C Refrigerant Pressure Sensor	On left side of engine compartment, on accumulator.
Ambient Air Temperature Gauge Sensor	Behind front fascia, mounted to radiator air baffle.
Camshaft Position Sensor (CMP) (3.1L VIN M)	Top front of engine, below intake plenum.
Camshaft Position Sensor (CMP) (3.8L VIN K)	Front of engine, above crankshaft pulley.
Camshaft Position Sensor (CMP) (3.8L VIN 1)	Front of engine, above crankshaft pulley.
Crankshaft Position (CKP) Sensor (7X) (3.1L VIN M)	Right side of engine, below exhaust manifold. See Fig. 1.
Crankshaft Position (CKP) Sensor (24X) (3.1L VIN M)	Front of engine, behind harmonic balancer. See Fig. 3.
Crankshaft Position Sensor (CKP) (3.8L VIN K)	Front of engine, behind harmonic balancer.
Crankshaft Position Sensor (CKP) (3.8L VIN 1)	Front of engine, behind harmonic balancer.
Daytime Running Lamp (DRL) Ambient Light Sensor	Top right side of dash, at base of windshield.
Engine Coolant Temperature (ECT) Sensor (3.1L VIN M)	Top left side of engine, below throttle body.
Engine Coolant Temperature (ECT) Sensor (3.8L VIN K)	Top left side of engine, below throttle body. See Fig. 6.
Engine Coolant Temperature (ECT) Sensor (3.8L VIN 1)	Top left side of engine, below throttle body. See Fig. 6.
Heated Oxygen Sensor 1 (HO2S 1)	In right side exhaust manifold.
Heated Oxygen Sensor 2 (HO2S 2)	In exhaust system, rear of catalytic converter.
Inside Air Temperature Sensor	Front of dash, below right side of instrument cluster.
Intake Air Temperature (IAT) Sensor (3.1L VIN M)	Left front of engine compartment, in air cleaner duct.
Intake Air Temperature (IAT) Sensor (3.8L VIN K)	Left front of engine compartment, in air cleaner duct. See Fig. 4.
Intake Air Temperature (IAT) Sensor (3.8L VIN 1)	Left front of engine compartment, in air cleaner duct. See Fig. 4.
Knock Sensor (KS) Bank 1 (3.1L VIN M)	Lower left side of engine, above starter. See Fig. 3.
Knock Sensor (KS) Bank 1 (3.8L VIN K)	Left side of engine, in front of starter. See Fig. 5.
Knock Sensor (KS) Bank 1 (3.8L VIN 1)	Left side of engine, in front of starter. See Fig. 5.
Knock Sensor (KS) Bank 2	Lower right side of engine, below exhaust manifold.
Manifold Absolute Pressure (MAP) Sensor (3.1L VIN M)	Top right side of engine, above valve cover.
Manifold Absolute Pressure (MAP) Sensor (3.8L VIN K)	Top of engine, on front of intake manifold.
Manifold Absolute Pressure (MAP) Sensor (3.8L VIN 1)	Top right side of engine, above valve cover.
Mass Airflow (MAF) Sensor (3.1L VIN M)	Left side of engine, in air cleaner duct.
Mass Airflow (MAF) Sensor (3.8L VIN K)	Top rear of engine, part of throttle body assembly. See Fig. 4.
Mass Airflow (MAF) Sensor (3.8L VIN 1)	Top rear of engine, part of throttle body assembly. See Fig. 4.
Sun Load Temperature Sensor	Top left side of dash.
Throttle Position (TP) Sensor (3.1L VIN M)	On throttle body assembly. See Fig. 2.
Throttle Position (TP) Sensor (3.8L VIN K)	On throttle body assembly. See Fig. 4.
Throttle Position (TP) Sensor (3.8L VIN 1)	On throttle body assembly. See Fig. 4.
Vehicle Speed Sensor (VSS)	Lower right side of engine compartment, on transaxle.
Wheel Speed Sensor (4)	On wheel hub assembly.

Buick Regal LS 2000 - SOLENOIDS & SOLENOID VALVES

Buick Regal LS 2000 SOLENOIDS & SOLENOID VALVES

Component	Component Location
Automatic Transmission Shift Lock Control Actuator (BTSI)	In column shift.
Evaporative Emissions (EVAP) Canister Purge Solenoid Valve (3.1L VIN M)	Top right side of engine, behind ignition control module.
Evaporative Emissions (EVAP) Canister Purge Solenoid Valve (3.8L VIN K)	Top left side of engine, near center of valve cover.
Evaporative Emissions (EVAP) Canister Purge Solenoid Valve (3.8L VIN 1)	Top right side of engine, near center of valve cover.
Evaporative Emissions (EVAP) Canister Vent Solenoid Valve	Behind left side of rear fascia splash shield, in wheelwell.
Exhaust Gas Recirculation (EGR) Valve (3.1L VIN M)	Top rear of engine, near throttle body. See Fig. 2.
Exhaust Gas Recirculation (EGR) Valve (3.8L VIN K)	Top rear of engine, near throttle body.
Exhaust Gas Recirculation (EGR) Valve (3.8L VIN 1)	Top rear of engine, near throttle body.
Steering Column Electric Park Lock	In steering column, near ignition key cylinder.
Steering Gear (MSVA) Actuator	Left rear of engine compartment, behind transaxle.
Supercharger By-Pass Valve (3.8L VIN 1)	Top left of engine, above left valve cover.
Vacuum Electric Solenoid	On right side of heater-A/C module.

Buick Regal LS 2000 - SWITCHES

Buick Regal LS 2000 SWITCHES

Component	Component Location
Brake Fluid Level Indicator Switch	In brake fluid reservoir.
Cruise Control Release Switch	Under left side of dash, on brake pedal bracket.
Engine Oil Pressure Indicator Switch (3.1L VIN M)	Lower left side of engine, above starter. See Fig. 3.
Engine Oil Pressure Indicator Switch (3.8L VIN K)	Lower right side of engine, above transaxle.
Engine Oil Pressure Indicator Switch (3.8L VIN 1)	Lower right side of engine, above transaxle.
Engine Oil Level Indicator Switch (3.1L VIN M)	On bottom of engine oil pan.
Engine Oil Level Indicator Switch (3.8L VIN K)	On bottom of engine oil pan. See Fig. 5.
Engine Oil Level Indicator Switch (3.8L VIN 1)	On bottom of engine oil pan. See Fig. 5.
Park Brake Indicator Switch	On parking brake assembly.
Seat Belt Switch	Part of driver's seat belt assembly.
Stoplight Switch	On brake pedal support bracket.
Transaxle Range Switch	On top right rear of transaxle. See Fig. 7.
Windshield Washer Solvent Level Switch	Right front corner of engine compartment, in washer fluid reservoir.

Buick Regal LS 2000 - MISCELLANEOUS

Buick Regal LS 2000 MISCELLANEOUS

Component	Component Location
Blower Motor Resistor	Under right side of dash, in right side of heater-A/C module. See Fig. 10.
Data Link Connector (DLC)	Under left side of dash, right of steering column.
Fuel Pump Resistor	Outside of right front frame rail, in front of wheel.
Low Frequency Audio Amplifier	In rear compartment, mounted to bottom of rear deck.

Buick Regal LS 2000 - CONNECTORS

Buick Regal LS 2000 CONNECTORS LOCATION

Component	Location
C101 (Gray, 20 Pin)	Left side of engine compartment, on strut tower.
C105 (Gray, 4 Pin)	On radiator, near right cooling fans.
C111 (7 Pin)	Left side of engine compartment, top of transmission.
C113 (Gray, 20 Pin)	Left side of engine compartment, top of transaxle.
C141 (Black, 10 Pin)	Behind left headlamp.
C142 (Black, 10 Pin)	Behind right headlamp.
C200 (Black, 56 Pin)	Behind right side of dash.
C201 (Black, 48 Pin)	Behind dash, on right side of steering column.
C205 (Black, 4 Pin)	Behind dash, on right side of steering column.
C206 (Black, 3 Pin)	Behind right side of dash, near C200.
C240 (Natural, 10 Pin)	In console, behind console shift.
C242 (Black, 3 Pin)	Behind ashtray.
C250 (8 Pin)	Behind center of dash.
C252 (32 Pin)	Behind center of dash.
C301 (16 Pin)	On "A" pillar.
C302 (Black, 16 Pin)	On "A" pillar.
C311 (Black, 6 Pin)	Below driver seat.
C312 (Black, 6 Pin)	Below passenger seat.
C351 (Black, 10 Pin)	On "B" pillar.
C352 (Black, 10 Pin)	On "B" pillar.
C390 (Black, 8 Pin)	Right rear, on top of package shelf panel.
C395 (Black, 2 Pin)	Rear compartment, under right side of package shelf trim panel.
C398 (Black, 3 Pin)	Behind right "C" pillar trim panel.
C401 (Gray, 6 Pin)	In rear compartment, behind taillamp.
C402 (Gray, 6 Pin)	In rear compartment, behind taillamp.
C405 (Black, 8 Pin)	On rear compartment floor, forward of spare tirewell.
C410 (Black, 8 Pin)	Right side of rear compartment, above wheelwell.
C420 (Blue, 2 Pin)	In rear compartment, under center of rear window trim panel.
C915 (Black, 4 Pin)	In center of rear compartment lid applique.

Buick Regal LS 2000 - GROUNDS

Buick Regal LS 2000 GROUNDS LOCATION

Component	Location
G100	Right side of engine compartment, at base of battery.
G101	Left side of front end upper tie bar.
G102	Right side of front end upper tie bar.
G111 (3.1L VIN M)	Lower left front of engine, on transaxle stud, left of starter.
G111 (3.8L VIN K)	Right side of engine, on ignition control module bracket.
G111 (3.8L VIN 1)	Right side of engine, on ignition control module bracket.
G113 (3.1L VIN M)	Lower left front of engine, on transaxle stud, left of starter.
G113 (3.8L VIN K)	Lower left front of engine, on transaxle stud, left of starter. See Fig. 5.
G113 (3.8L VIN 1)	Lower left front of engine, on transaxle stud, left of starter. See Fig. 5.
G117 (3.1L VIN M)	Lower left front of engine, on transaxle stud, above starter.
G117 (3.8L VIN K)	Lower left front of engine, on transaxle stud, left of starter. See Fig. 5.
G117 (3.8L VIN 1)	Lower left front of engine, on transaxle stud, left of starter. See Fig. 5.
G171 (3.8L VIN K)	Lower left front of engine, on transaxle stud, left of starter. See Fig. 5.
G171 (3.8L VIN 1)	Lower left front of engine, on transaxle stud, left of starter. See Fig. 5.
G119	Left side of engine compartment, at base of left strut tower.
G200	Behind right side of dash.
G201	Below dash, left side of steering column.
G203	Below dash, right side of steering column.
G301	Inside left door sill, forward of left front seat.
G401	Inside rear compartment, below left side of rear window trim panel.
G402	Inside rear compartment, below right side of rear window trim panel.

Buick Regal LS 2000 - SPLICES

Buick Regal LS 2000 SPLICES LOCATION

Component	Location
S105	Engine wiring harness, front of engine compartment, 4 cm from C105 breakout.
S106	Engine wiring harness, left side of engine compartment, 7 cm from PCM breakout.
S109 (3.1L VIN M)	Fuel injector wiring harness, top of engine, 2 cm from fuel injector No. 2 breakout.
S109 (3.8L VIN 1)	Engine wiring harness, top left of engine, 6 cm from C110 breakout.
S109 (3.8L VIN K)	Engine wiring harness, top left of engine, 6 cm from C110 breakout.
S115 (3.1L VIN M)	Automatic transaxle wiring harness, inside transaxle housing, 11 cm from C111
S115 (3.8L VIN K)	Automatic transaxle wiring harness, inside transaxle housing, 11 cm from C111.
S115 (3.8L VIN 1)	Automatic transaxle wiring harness, inside transaxle housing, 19 cm from C113.
S124	Forward lamp wiring harness, below left headlamp, 7 cm from left headlamp breakout.
S167	Engine wiring harness, left side of engine compartment, 4 cm front PCM breakout.
S202	I/P wiring harness, right side of steering column, 19 cm from radio breakout.
S211	I/P wiring harness, right side of steering column, 20 cm from instrument cluster breakout.
S220	I/P wiring harness, right side of steering column, 18 cm from G200 breakout.
S228	I/P wiring harness, right side of dash, 24 cm from G200 breakout.
S230	I/P wiring harness, 18 cm from radio breakout.
S233	I/P wiring harness, behind center of dash, 4 cm from radio breakout.
S234	I/P wiring harness, right side of steering column, 13 cm from instrument cluster breakout.
S240	I/P wiring harness, right side of steering column near C201, 1 cm from splice pack SP205 breakout.
S241	I/P wiring harness, below radio, 15 cm from radio breakout.
S249	I/P wiring harness, near steering column, 4 cm from C201 breakout.
S255	Mobile telephone wiring harness, behind center of dash, 10 cm from C250.
S263	I/P wiring harness, near blower motor, 4 cm from door lock relay breakout.
S267	I/P wiring harness, right side of dash, 11 cm from G200 breakout.
S269	I/P wiring harness, near blower motor, 13 cm from door lock relay breakout.
S270	I/P wiring harness, behind right side of dash, 4 cm from blower motor control module.
S275	I/P wiring harness, 25 cm from blower motor control module.
S283	I/P wiring harness, left side of steering column, 4 cm from headlamp switch breakout.
S295	Ashtray jumper wiring harness, inside ashtray, 5 cm from C242.
S301	Body wiring harness, right outside floor, next to passenger seat, 40 cm from C312 breakout.
S303	Body wiring harness, on floor, under driver's seat, 10 cm from C311 breakout.
S319	Body wiring harness, right outside floor, near passenger's seat, 46 cm from C312 breakout.
S323	Body wiring harness, floor, on top of tunnel between front seat, 10 cm from C250 breakout.
S325	Body wiring harness, left side floor, under driver seat, 23 cm from G301 breakout.
S330	Driver seat adjuster wiring harness, 20 cm from C311 breakout.
S333	Passenger seat adjuster wiring harness, 20 cm from C312 breakout.
S335	Front floor console wiring harness, inside console, 7 cm from accessory power receptacle breakout.
S336	Front floor console wiring harness, inside console, 20 cm from C240.
S348	Body wiring harness, floor, under passenger seat, 16 cm from C312 breakout.
S350	Body wiring harness, floor, under passenger seat, 10 cm from C312 breakout.
S383	Quarter courtesy & reading lamp wiring harness, left side of windshield header, 31 cm from left sunshade mirror breakout.
S385	Quarter courtesy & reading lamp wiring harness, 5 cm from right sunshade mirror breakout.
S402	Right taillamp wiring harness, 3 cm from P402.
S403	Left taillamp wiring harness, 3 cm from P401.
S406	Body wiring harness, in right side of rear compartment, 4 cm from right radio speaker breakout.
S408	Body wiring harness, in right side of rear compartment, 33 cm from C390 breakout.
S410	Body wiring harness, left floor, under rear seat, 7 cm from C405 breakout.
S414	Body wiring harness, in right side of rear compartment, 5 cm from C420 breakout.
S416	CHMSL wiring harness, center of rear window trim panel, 5 cm from center high mounted stop lamp breakout.
S420	Body wiring harness, right side of rear compartment, 23 cm from C390 breakout.
S431	Left taillamp wiring harness, 5 cm from P401.
S432	Right taillamp wiring harness, 5 cm from P402.
S440	Body wiring harness, in rear compartment, 6.5 cm from right rear radio speaker breakout.
S504	Left front door wiring harness, in left front door, 8 cm from window switch breakout.
S604	Right front door wiring harness, in right front door, 8 cm from window switch breakout.
S905	Rear compartment lid wiring harness, rear compartment lid, 7 cm from P415.
S915	Back-up lamp wiring harness, in rear compartment lid, 17 cm from P415.
S919	Back-up lamp wiring harness, in rear compartment lid, 23 cm from P415.
S930	Rear deck lid wiring harness, in rear compartment lid, 38 cm from P432.