Buick Regal GS 2004 - 2004 GENERAL MOTORS Century & Regal

Buick Regal GS 2004 - BUZZERS, RELAYS & TIMERS

Buick Regal GS 2004 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C CLU Micro Relay	In underhood fuse block. See Fig. 13 .
Back-Up Lamp Relay	Behind left side of dash, mounted to multi-purpose bracket, near BCM. See Fig. 66 .
Brake-To-Shift Relay	Left of I/P fuse block. See Fig. 42 .
COOL FAN 1 Mini Relay	In underhood fuse block. See Fig. 13 .
COOL FAN 2 Mini Relay	In underhood fuse block. See Fig. 13 .
COOL FAN 3 Mini Relay	In underhood fuse block. See Fig. 13 .
CRANK Mini Relay	In underhood fuse block. See Fig. 13 .
FOG LP Micro Relay	In underhood fuse block. See Fig. 13 .
F/PMP Micro Relay	In underhood fuse block. See Fig. 13 .
F/PMP SPD CONT Micro Relay	In underhood fuse block. See Fig. 13 .
Headlamp Relay	Behind glove box, mounted to underside of cross-car beam.
HORN Micro Relay	In underhood fuse block. See Fig. 13 .
IGN MAIN Mini Relay	In underhood fuse block. See Fig. 13 .
Park Lamp Relay	Behind right side of dash, on cross-car beam. See Fig. 42 .
Rear Compartment Lid Release Relay	Behind glove box, mounted to underside of cross-car beam. See Fig. 69 .
Rear Window Defogger Relay	Behind glove box, mounted to underside of cross-car beam. See Fig. 69 .
Retained Accessory Power (RAP) Relay	Behind glove box, mounted to underside of cross-car beam. See Fig. 69 .
Turn Signal/Hazard Flasher Module	Behind left side of dash, mounted on multi-purpose bracket, near BCM.

Buick Regal GS 2004 - CIRCUIT PROTECTION DEVICES

Buick Regal GS 2004 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Blower Motor Resistor Assembly	On blower motor assembly. See Fig. 16 .
Fusible Link From Generator	Left side of engine, on starter assembly. See Fig. 3 .
Fusible Link (3.1L VIN J)	At rear of starter. See Fig. 29 .
I/P Fuse Block	Behind right side of dash, in right door opening. See Fig. 1 .
Underhood Fuse Block	Mounted to right front strut tower. See Fig. 2 .

Buick Regal GS 2004 - CONTROL UNITS

Buick Regal GS 2004 CONTROL UNITS LOCATION

Component	Location
Blower Motor Control Processor (W/ Auto A/C)	Behind right side of dash, in HVAC module. See Fig. 1 .
Body Control Module (BCM)	Behind left side of dash, left of steering column. See Fig. 66 .
Body Control Module (BCM) Connector	Below left side of dash. See Fig. 71 .
Cruise Control Module (CCM)	Front of left strut tower. See Fig. 7 .
Cruise Control Module (CCM) Connector	Front left strut tower. See Fig. 7 .
Electronic Brake Control Module (EBCM)	At left side of engine compartment, near strut tower. See Fig. 7 .
Electronic Brake Control Module (EBCM) Connector	Left side of engine compartment. See Fig. 7 .
Express Open Connector	At sunroof motor. See Fig. 72 .
Heated Seat Control Module (Driver)	Below driver's seat. See Fig. 73 .
Heated Seat Control Module (Front Passenger)	Below right front seat.
Heater-A/C Control Module	Lower center of dash. See Fig. 17 .
Heater-A/C Control Module Connector	Lower center of dash. See Fig. 17 .
HVAC Control Module	Lower center of dash. See Fig. 19 .
HVAC Control Module Connector	Lower center of dash. See Fig. 19 .
Ignition Control Module (ICM) (3.1L VIN J)	Top right side of engine. See Fig. 26 .
Ignition Control Module (ICM) (3.8L VIN K)	Top front of engine. See Fig. 5 .
Ignition Control Module (ICM) (3.8L VIN 1)	Top front of engine. See Fig. 5 .
Inflatable Restraint IP Module	Right side of dash. See Fig. 47 .
Inflatable Restraint Sensing & Diagnostic Module Connector	Center of floor pan. See Fig. 75 .
Inflatable Restraint Sensing & Diagnostic Module (SDM)	Below carpet, under right front seat. See Fig. 50 .
Inflatable Restraint Side Impact Sensor-LH	In left side of driver's seat. See Fig. 47 .
Inflatable Restraint Steering Wheel Module	In steering wheel. See Fig. 47 .
Inflatable Restraint Steering Wheel Module Coil	Behind steering wheel, in column. See Fig. 48 .
Powertrain Control Module (PCM)	Left front side of engine compartment, in air cleaner assembly. See Fig. 30 .
Radio Antenna Module	On rear window header panel, above headliner. See Fig. 55 .
Remote Control Door Lock Receiver (RCDLR)	Behind instrument cluster. See Fig. 70 .
Sun Roof Module (Express Open)	Center rear of sun roof. See Fig. 72 .
Turn Signal/Hazard Flasher Module	Below left side of dash. See Fig. 66 .
Vehicle Communication Interface Module (VCIM)	On rear of left rear wheelhouse. See Fig. 51 .

Buick Regal GS 2004 - MOTORS

Buick Regal GS 2004 MOTORS LOCATION

Component	Location
Air Temperature Actuator (Left)	Left side of HVAC module. See Fig. 69 .
Air Temperature Actuator (Right)	Right side of HVAC module. See Fig. 69 .
Blower Motor	Behind right side of dash, in HVAC module. See Fig. 1 .
Cooling Fan - Left Connector	On cooling fan assembly. See Fig. 25 .
Cooling Fan Motor (Left)	On left side of radiator.
Cooling Fan Motor (Right)	On right side of radiator.
Cooling Fan - Right Connector	On cooling fan assembly. See Fig. 25 .
Fuel Pump & Sender Assembly	In fuel tank. See Fig. 37 .
Idle Air Control (IAC) Valve (3.1L VIN J)	On throttle body assembly. See Fig. 31 .
Idle Air Control (IAC) Valve (3.8L VIN K)	On throttle body assembly.
Idle Air Control (IAC) Valve (3.8L VIN 1)	On throttle body assembly.
Rear Compartment Lid Lock Release Actuator	On rear compartment lid lock assembly. See Fig. 59 .
Seat Adjuster Motor Assembly	In seat bottom. See Fig. 73 .
Starter Solenoid "B" Terminal (3.1L VIN J)	At rear of starter. See Fig. 29 .
Starter Solenoid "S" Terminal (3.1L VIN J)	At rear of starter motor. See Fig. 29 .
Starter (3.1L VIN J)	Left side of engine. See Fig. 29 .
Starter (3.8L VIN K)	Lower front of engine compartment. See Fig. 3 .
Sun Roof Motor	Center rear of sun roof module.
Sunroof Motor Connector	At sunroof motor. See Fig. 72 .
Window Motor-Driver	In driver's door. See Fig. 61 .
Window Motor-RR	In right rear passenger door. See Fig. 62 .
Windshield Washer Pump	On right front corner of engine compartment, in washer fluid reservoir. See Fig. 78 .
Windshield Wiper Motor	On left side of firewall, below air inlet screen. See Fig. 79 .

Buick Regal GS 2004 - SENDING UNITS & SENSORS

Buick Regal GS 2004 SENDING UNITS & SENSORS LOCATION

Component	Location
A/C Refrigerant Pressure Sensor	At left front strut tower, on A/C liquid line. See Fig. 7 .
A/C Refrigerant Pressure Sensor Connector	Left side of engine compartment. See Fig. 6 .
Air Temperature Sensor-Inside	At left side of dash, below instrument cluster. See Fig. 20 .
Air Temperature Sensor-Inside Connector	Behind center of dash. See Fig. 20 .
Ambient Outside Air Temperature Sensor	Front of radiator support. See Fig. 18 .
Ambient Light Sensor	On top right side of dash, near defogger outlet. See Fig. 9 .
Ambient Outside Air Temperature Sensor Connector	Right front of vehicle, behind bumper. See Fig. 1 .
Camshaft Position (CMP) Sensor (3.1L VIN J)	Top front of engine, below intake plenum. See Fig. 32 .
Camshaft Position (CMP) Sensor (3.8L VIN K)	Front of engine, above crankshaft pulley. See Fig. 5 .
Camshaft Position (CMP) Sensor (3.8L VIN 1)	Front of engine, above crankshaft pulley. See Fig. 5 .
Crankshaft Position (CKP) Sensor Connector	Above A/C compressor. See Fig. 29 .
Crankshaft Position (CKP) Sensor (3.8L VIN K)	Front of engine, behind harmonic balancer. See Fig. 5 .
Crankshaft Position (CKP) Sensor (3.8L VIN 1)	Front of engine, behind harmonic balancer. See Fig. 5 .
Crankshaft Position (CKP) Sensor A (3.1L VIN J)	Front of engine, behind harmonic balancer. See Fig. 35 .
Crankshaft Position (CKP) Sensor B (3.1L VIN J)	Right side of engine, below exhaust manifold. See Fig. 36 .
Engine Coolant Temperature (ECT) Sensor (3.1L VIN J)	Top left side of engine, below throttle body. See Fig. 34 .
Engine Coolant Temperature (ECT) Sensor (3.8L VIN K)	Top left side of engine, below throttle body.
Engine Coolant Temperature (ECT) Sensor (3.8L VIN 1)	Top left side of engine, below throttle body.
Engine Oil Level Sensor (3.8L VIN K)	Behind starter motor. See Fig. 3 .
Engine Oil Level Sensor (3.8L VIN 1)	Lower front of engine compartment. See Fig. 4 .
Fuel Level Sensor	In fuel tank. See Fig. 37 .
Fuel Pump & Sender Assembly	In fuel tank.
Fuel Tank Pressure (FTP) Sensor	On top of fuel tank. See Fig. 37 .
Heated Oxygen Sensor (HO2S) 1 (3.1L VIN J)	In right side exhaust manifold. See Fig. 26 .
Heated Oxygen Sensor (HO2S) 2	In exhaust system, rear of catalytic converter. See Fig. 38 .
Inflatable Restraint Side Impact Sensor (Left Front)	At base of left "B" pillar. See Fig. 47 .
Intake Air Temperature (IAT) Sensor (3.1L VIN J)	Left front of engine compartment, in air cleaner duct. See Fig. 31 .
Intake Air Temperature (IAT) Sensor (3.8L VIN K)	Left front of engine compartment, in air cleaner duct.
Intake Air Temperature (IAT) Sensor (3.8L VIN 1)	Left front of engine compartment, in air cleaner duct.
Knock Sensor (KS) 1 (3.1L VIN J)	Lower left side of engine, above starter. See Fig. 14 .
Knock Sensor (KS) 1 (3.8L VIN K)	Right side of engine, in front of starter. See Fig. 3 .
Knock Sensor (KS) 1 (3.8L VIN 1)	Right side of engine, in front of starter. See Fig. 4 .
Knock Sensor (KS) 2	Lower right side of engine, below exhaust manifold. See Fig. 64 .
Manifold Absolute Pressure (MAP) Sensor (3.1L VIN J)	Top right side of engine, above valve cover. See Fig. 32 .
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. See Fig. 28 .
Mass Airflow (MAF) Sensor (3.1L VIN J)	Left side of engine, in air cleaner duct. See Fig. 31 .
Mass Airflow (MAF) Sensor (3.8L VIN K)	Top rear of engine, part of throttle body assembly.
Mass Airflow (MAF) Sensor (3.8L VIN 1)	Top rear of engine, part of throttle body assembly.
Rear Compartment Occupant Sensor	At left side of rear compartment.
Sun load Sensor	On top right side of dash, near defogger outlet. See Fig. 9 .
Throttle Position (TP) Sensor (3.1L VIN J)	On throttle body assembly. See Fig. 31 .
Throttle Position (TP) Sensor (3.8L VIN K)	On throttle body assembly.
Throttle Position (TP) Sensor (3.8L VIN 1)	On throttle body assembly.
Transmission Fluid Pressure (TFT) Manual Valve Position Switch Assembly	In transmission. See Fig. 44 .
Transmission Fluid Temperature Sensor	In transmission. See Fig. 44 .
Vehicle Speed Sensor (VSS)	On transaxle right axle case extension. See Fig. 43 .
Wheel Speed Sensor (WSS) (Left Front)	On left front wheel hub assembly. See Fig. 6 .
Wheel Speed Sensor (WSS) (Left Rear)	On left rear wheel hub assembly. See Fig. 24 .
Wheel Speed Sensor (WSS) (Right Front)	On right front wheel hub assembly. See Fig. 23 .
Wheel Speed Sensor (WSS) (Right Rear)	On right rear wheel hub assembly.

Buick Regal GS 2004 - SOLENOIDS & SOLENOID VALVES

Buick Regal GS 2004 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
A/C Compressor Clutch Coil (3.8L VIN K & 3.8L VIN 1)	On front of compressor. See Fig. 15 .
A/C Compressor Clutch (3.1L VIN J)	On front of compressor. See Fig. 14 .
A/C Compressor Clutch (3.1L VIN J)	On front of A/C compressor. See Fig. 29 .
A/T Shift Lock Control Solenoid (Century)	In column shift. See Fig. 40 .
Evaporative Emissions (EVAP) Canister Purge Solenoid (3.1L VIN J)	Top right side of engine, behind ignition control module. See Fig. 31 .
Evaporative Emissions (EVAP) Canister Purge Solenoid (3.8L VIN K)	Top left side of engine, near center of valve cover.
Evaporative Emissions (EVAP) Canister Purge Solenoid (3.8L VIN 1)	Top right side of engine, near center of valve cover. See Fig. 28 .
Evaporative Emissions (EVAP) Canister Vent Solenoid Valve	Behind left side of rear fascia splash shield, in wheelwell. See Fig. 39 .
Evaporative Emissions (EVAP) Canister Vent Solenoid Connector	Left side of luggage compartment. See Fig. 12 .
Exhaust Gas Recirculation (EGR) Valve (3.1L VIN J)	Top rear of engine, near throttle body. See Fig. 31 .
Exhaust Gas Recirculation (EGR) Valve (3.8L VIN K)	On top right rear of engine.
Exhaust Gas Recirculation (EGR) Valve (3.8L VIN 1)	On top right rear of engine.
Fuel Injector 1	On intake manifold. See Fig. 33 .
Fuel Injector 2 (3.1L VIN J)	On intake manifold. See Fig. 33 .
Fuel Injector 2 (3.8L VIN K)	Right top of engine. See Fig. 27 .
Fuel Injector 2 (3.8L VIN 1)	Top right of engine. See Fig. 28 .
Fuel Injector 3 (3.1L VIN J)	On intake manifold. See Fig. 33 .
Fuel Injector 4 (3.1L VIN J)	On intake manifold. See Fig. 33 .
Fuel Injector 4 (3.8L VIN K)	Right top of engine. See Fig. 27 .
Fuel Injector 4 (3.8L VIN 1)	Top right of engine. See Fig. 28 .
Fuel Injector 5 (3.1L VIN J)	On intake manifold. See Fig. 33 .
Fuel Injector 6 (3.1L VIN J)	On intake manifold. See Fig. 33 .
Fuel Injector 6 (3.8L VIN K)	Right top of engine. See Fig. 27 .
Fuel Injector 6 (3.8L VIN 1)	Top right of engine. See Fig. 28 .
Ignition Lock Cylinder Control Actuator (Regal)	In steering column. See Fig. 8 .
Park Lock Solenoid	In steering column, near ignition key cylinder.
Pressure Control (PC) Solenoid Valve Assembly	In transmission assembly. See Fig. 43 .
Secondary Air Injection (AIR) Solenoid (3.8L VIN K)	On right side of engine, above exhaust manifold.
Secondary Air Injection (AIR) Solenoid (3.8L VIN I)	On right side of engine, above exhaust manifold.
Starter Solenoid "B" Terminal (3.8L VIN K)	At rear of starter motor. See Fig. 3 .
Starter Solenoid "B" Terminal (3.8L VIN 1)	Lower front of engine compartment. See Fig. 4 .
Starter Solenoid "S" Terminal (3.8L VIN K)	Lower front of engine compartment. See Fig. 3 .
Starter Solenoid "S" Terminal (3.8L VIN 1)	Lower front of engine compartment. See Fig. 4 .
Supercharger Boost Control Solenoid (3.8L VIN 1)	Top left rear of engine, above valve cover.
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve Assembly	In transmission assembly, on valve body. See Fig. 43 .
Vacuum Control Assembly	On right side of HVAC module. See Fig. 1 .
Vacuum/Electric Solenoid	On HVAC assembly. See Fig. 16 .
1-2, 3-4 Shift Solenoid (SS) Valve Assembly	In transmission assembly. See Fig. 43 .
2-3 Shift Solenoid (SS) Valve Assembly	In transmission assembly. See Fig. 43 .

Buick Regal GS 2004 - SWITCHES

Buick Regal GS 2004 SWITCHES LOCATION

Component	Location
A/T Shift Lock Control Switch (Regal)	Under center of console. See Fig. 41 .
Automatic Transmission Input Shaft Speed (A/T ISS) Sensor Assembly	On side of transmission assembly. See Fig. 43 .
Brake Fluid Level Switch	In brake fluid reservoir. See Fig. 7 .
Cruise Control Release Switch	Under left side of dash, on brake pedal bracket.
Engine Oil Level Switch (3.1L VIN J)	On bottom of engine oil pan.
Engine Oil Level Switch (3.8L VIN K)	On bottom of engine oil pan. See Fig. 65 .
Engine Oil Level Switch (3.8L VIN 1)	On bottom of engine oil pan. See Fig. 65 .
Engine Oil Pressure (EOP) Switch (3.1L VIN J)	Lower left side of engine, above starter. See Fig. 14 .
Engine Oil Pressure (EOP) Switch (3.8L VIN K)	Lower right side of engine, above transaxle. See Fig. 64 .
Engine Oil Pressure (EOP) Switch (3.8L VIN 1)	Lower right side of engine, above transaxle. See Fig. 64 .
Horn Switch "B" Connector	In steering wheel. See Fig. 49 .
Horn Switch Ground Connector	In steering wheel assembly. See Fig. 49 .
Ignition Switch	In steering column. See Fig. 8 .
I/P Compartment Lamp/Switch	In glove compartment box. See Fig. 67 .
Lever Assembly-Manual Shaft Detent With Shift Position Switch-Internal Mode Switch (IMS)	On top of transmission assembly. See Fig. 43 .
Park Brake Switch	On parking brake assembly. See Fig. 21 .
Park Brake Switch Connector	Left kick panel. See Fig. 21 .
Rear Compartment Lid Ajar Switch	On rear compartment lid lock assembly. See Fig. 59 .
Seat Belt Switch (Driver)	Part of driver's seat belt assembly. See Fig. 46 .
Stop Lamp Switch	On brake pedal support bracket. See Fig. 54 .
Sunroof Opening Position Switch (SOPS) Connector	At sunroof motor assembly. See Fig. 72 .
Transmission Fluid Pressure (TFT) Manual Valve Position Switch Assembly	In transmission assembly. See Fig. 43 .
Transmission Fluid Temperature (TFT) Sensor	In transmission assembly. See Fig. 43 .
Turn Signal/Multifunction Switch	In steering Column. See Fig. 8 .
Windshield Washer Fluid Level Switch	Right front corner of engine compartment, in washer fluid reservoir. See Fig. 78 .

Buick Regal GS 2004 - MISCELLANEOUS

Buick Regal GS 2004 MISCELLANEOUS LOCATION

Component	Location
Audio Amplifier	Under rear package shelf. See Fig. 58 .
Auxiliary Power Outlet (Regal)	In floor console. See Fig. 74 .
Battery Positive Cable At Starter(3.1L VIN J)	On back of starter motor. See Fig. 14 .
Blower Motor Resistor Assembly (W/ Man A/C)	Under right side of dash, in right side of HVAC module. See Fig. 1 .
Data Link Connector (DLC)	Under left side of dash, right of steering column. See Fig. 60 .
Battery	Right front of engine compartment. See Fig. 2 .
Cellular Telephone Antenna Connection	Left side of luggage compartment. See Fig. 52 .
Cellular Telephone Antenna	Left side of luggage compartment. See Fig. 51 .
Cellular Telephone Microphone	In front of head liner, near rear view mirror. See Fig. 51 .
Fixed Mass Antenna	Right side of luggage compartment. See Fig. 57 .
Generator (3.8L VIN K)	Top front of engine. See Fig. 27 .
Generator BAT Terminal (3.8L VIN K)	At rear of generator. See Fig. 27 .
Generator BAT Terminal (3.8L VIN 1)	At rear of generator. See Fig. 28 .
Generator Connector (3.8L VIN 1)	At rear of generator. See Fig. 28 .
Generator (3.1L VIN J)	Right front of engine compartment. See Fig. 26 .
Generator B+ (3.1L VIN J)	At rear of generator. See Fig. 26 .
Generator Connector (3.8L VIN K)	At rear of generator. See Fig. 27 .
Generator Connector (3.1L VIN J)	At rear of generator. See Fig. 26 .
Generator (3.8L VIN 1)	On top front of engine. See Fig. 28 .
Heated Oxygen Sensor (HO2S) 1 (3.8L VIN K)	Right side of engine. See Fig. 27 .
Heated Seat Back Element Connector	In seat back. See Fig. 73 .
Heated Seat Element-Cushion Cover Connector	In front seat cushion. See Fig. 73 .
Horn Assembly	Right front of vehicle. See Fig. 63 .
Ignition Coils (3.8L)	Top front of engine. See Fig. 5 .
Inflatable Restraint Steering Wheel Module Coil	In steering column, behind steering wheel. See Fig. 80 .
Navigation Antenna	At left "C" pillar. See Fig. 51 .
Positive Battery Lead (3.1L VIN J)	At starter. See Fig. 29 .
Radio Noise Suppressor	At upper right corner of rear window. See Fig. 56 .
Radio Noise Suppressor	At base of rear window. See Fig. 76 .
Rear Window Defogger Grid Connector	At base of rear window. See Fig. 77 .

Buick Regal GS 2004 - CONNECTORS

Buick Regal GS 2004 CONNECTORS LOCATION

Component	Location
C101 (Gray, 20 Pin)	Left side of engine compartment, on strut tower. See Fig. 6 .
C102 (Black, 16 Pin)	On right rear of engine compartment, near generator. See Fig. 26 .
C103 (Gray/Black, 2 Pin)	Behind right front fascia, below headlamp. See Fig. 1 .
C105 (Gray, 4 Pin)	On radiator, between left & right cooling fans. See Fig. 25 .
C106	Left front of vehicle, behind bumper. See Fig. 1 .
C107	Right front of vehicle, behind bumper. See Fig. 1 .
C110 (Black, 8 Pin)	On right top of engine, above fuel injector No. 3. See Fig. 5 .
C113 (Gray, 20 Pin)	Left side of engine compartment, top of transaxle. See Fig. 6 .
C120 (Gray, 2 Pin)	Lower right side of engine compartment, below battery tray. See Fig. 1 .
C125 (Black, 1 Pin)	On left rear corner of power steering pump. See Fig. 64 .
C126 (3.1L VIN J) (Gray, 2 Pin)	On top center of engine, below throttle body.
C126 (3.8L VIN K) (Gray, 2 Pin)	On top center of engine, below throttle body.
C126 (3.8L VIN 1) (Gray, 2 Pin)	On top center of engine, below throttle body.
C171 (Gray/Black, 2 Pin)	Near top of left front strut tower.
C172 (Gray/Black, 2 Pin)	Near top of right front strut tower.
C200 (Black/Gray, 56 Pin)	Behind right side of dash. See Fig. 1 .
C201 (Black, 48 Pin)	Behind dash, on right side of steering column. See Fig. 40 .
C203	In steering column. See Fig. 48 .
C204 (Natural, 10 Pin)	Behind right side of dash, near shroud.
C205 (Black, 4 Pin)	Behind dash, on right side of steering column. See Fig. 40 .
C206 (Black, 3 Pin)	Behind right side of dash, near C200.
C207 (Black, 2 Pin)	On right of steering column. See Fig. 40 .
C215 (Yellow, 2 Pin)	Behind dash, on right side of steering column. See Fig. 54 .
C216 (Yellow, 2 Pin)	Behind dash, on right side of steering column. See Fig. 54 .
C240 (Natural, 10 Pin)	In console, behind console shift. See Fig. 22 .
C241 (Natural, 2 Pin)	In console, behind console shift.
C242 (Black, 3 Pin)	Behind ashtray.
C290	Below right side of dash. See Fig. 10 .
C301 (Black, 40 Pin)	On left "A" pillar. See Fig. 11 .
C302 (Black, 40 Pin)	On right "A" pillar.
C311 (Black, 6 Pin)	Below driver seat. See Fig. 11 .
C312 (Black, 6 Pin)	Below passenger seat. See Fig. 75 .
C351 (Black, 10 Pin)	On left "B" pillar. See Fig. 11 .
C352 (Black, 10 Pin)	On right "B" pillar. See Fig. 62 .
C390 (Black, 8 Pin)	On right side of package shelf support. See Fig. 55 .
C395 (Black, 2 Pin)	Under right side of package shelf. See Fig. 55 .
C398 (Black, 3 Pin)	In rear headliner. See Fig. 55 .
C399	Top right side of rear package shelf. See Fig. 55 .
C401 (Gray, 6 Pin)	In rear compartment, behind left taillamp.
C402 (Gray, 6 Pin)	In rear compartment, behind right taillamp. See Fig. 12 .
C403 (Black, 8 Pin)	In rear compartment. See Fig. 53 .
C404	Left side of rear compartment. See Fig. 53 .
C405 (Gray, 12 Pin)	Rear compartment floor, forward of spare tire well.
C410 (Black, 8 Pin)	Right side of rear compartment, above wheelhouse.
C420 (Blue, 2 Pin)	In rear compartment, under center of package shelf. See Fig. 55 .
C915 (Black, 4 Pin)	In center of rear compartment lid applique. See Fig. 68 .

Buick Regal GS 2004 - GROUNDS

Buick Regal GS 2004 GROUNDS LOCATION

Component	Location
G100	Right side of engine compartment, at base of battery. See Fig. 2 .
G101	Front left side of radiator support. See Fig. 1 .
G111 (3.1L VIN J)	Lower left front of engine, on transaxle stud, left of starter. See Fig. 6 .
G111 (3.8L VIN K)	Right front of engine, on ignition control module bracket. See Fig. 5 .
G111 (3.8L VIN 1)	Right front of engine, on ignition control module bracket. See Fig. 5 .
G113 (3.1L VIN J)	Lower right front of engine, on transaxle stud, left of starter. See Fig. 6 .
G113 (3.8L VIN K)	Lower right front of engine, on transaxle stud, left of starter. See Fig. 3 .
G113 (3.8L VIN 1)	Lower right front of engine, on transaxle stud, left of starter. See Fig. 4 .
G171	Left side of engine compartment, below master cylinder. See Fig. 7 .
G200	Behind right side of dash compartment. See Fig. 1 .
G201	Below dash, left side of steering column.
G203	Below dash, right side of steering column. See Fig. 9 .
G301	Inside left door sill, forward of left front seat. See Fig. 11 .
G401	Inside rear compartment, below left side of rear window trim panel. See Fig. 12 .
G402	Inside rear compartment, below right side of rear window trim panel.

Buick Regal GS 2004 - SPLICES

Buick Regal GS 2004 SPLICES LOCATION

Component	Location
SP205	Behind data link connector. See Fig. 60 .
S101	Cooling fan jumper harness, 20 cm from left connector to engine cooling fan motor.
S102	Cooling fan jumper harness, 20 cm from left connector to engine cooling fan motor.
S103	Cooling fan jumper harness, 19.5 cm from right connector to engine cooling fan motor.
S104	Cooling fan jumper harness, 19.5 cm from right connector to engine cooling fan motor.
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 powertrain control module breakout.
S109 (3.1L VIN J)	Fuel injector wiring harness, top of engine, 2 cm from fuel injector No. 2 breakout.
S109 (3.8L VIN K)	Engine wiring harness, top left of engine, 6 cm from C110 breakout.
S109 (3.8L VIN 1)	Engine wiring harness, top left of engine, 6 cm from C110 breakout.
S115	Automatic transaxle wiring harness, inside transaxle housing, 19 cm from C113.
S121	Fuel injector jumper harness, midway between fuel injector No. 3 breakout & MAP sensor breakout.
S124	Forward lamp wiring harness, below left headlamp, 7 cm from left headlamp breakout.
S144	ICM harness, 12 cm from ignition control module.
S145	ICM harness, 18 cm from ignition control module.
S167	Engine wiring harness, left side of engine compartment, 4 cm from powertrain control module breakout.
S202	I/P wiring harness, right side of steering column, 19 cm from radio breakout.
S203	I/P wiring harness, above instrument cluster, 4 cm from foglamp switch, instrument cluster breakout.
S205	I/P wiring harness, below dash, near C201, 14 cm from G201 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.
S221	I/P wiring harness, right side of steering column, 17 cm from data link connector 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.
S231	I/P wiring harness, 33 cm from HVAC control module connector.
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 SP205 breakout.
S241	I/P wiring harness, lower dash, below radio, 15 cm from radio breakout.
S242	I/P wiring harness, lower dash, below radio, 22 cm from radio breakout.
S249	I/P wiring harness, near steering column, 4 cm from C201 breakout.
S258	I/P wiring harness, 4 cm left of HVAC control module breakout.
S263	I/P wiring harness, near blower motor, 4 cm from door lock relay breakout.
S264	I/P wiring harness, 4 cm from C200 breakout.
S267	I/P wiring harness, right side of dash, below glove compartment, 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.
S283	I/P wiring harness, left side of steering column, 4 cm from headlamp switch breakout.
S291	I/P wiring harness, 7 cm from data link connector breakout, toward C201.
S292	I/P wiring harness, midway between headlamp switch breakout & back-up lamp relay 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.
S302	Main body wiring harness, 4 cm from SDM breakout, toward C312.
S303	Body wiring harness, on floor, under driver's seat, 10 cm from C311 breakout.
S307	Body wiring harness, on floor, near center of vehicle, 20 cm from C325.
S314	Body wiring harness, below right side of front passenger seat, 4 cm from G302 breakout.
S315	Body wiring harness, below right front passenger seat, 35.5 cm from C311 breakout.
S323	Body wiring harness, on top of tunnel between front seat, 10 cm from C250 breakout.
S326	Body wiring harness, below right front seat, 60 cm from C312 breakout.
S330	Driver seat adjuster wiring harness, 20 cm from C311 breakout.
S333	Passenger seat wiring harness, 20 cm from C312 breakout.
S334	Front floor console wiring harness in console.
S335	Front floor console wiring harness, inside console, 6.5 cm from auxiliary power outlet breakout.
S336	Front floor console wiring harness, inside console, 20 cm from C240.
S382	Headliner wiring harness, left side of windshield header, 4 cm from left sunshade mirror breakout.
S383	Headliner wiring harness, left side of windshield header, 10.5 cm from left sunshade mirror breakout.
S385	Headliner wiring harness, 13 cm from right sunshade mirror breakout.
S386	Headliner wiring harness, 6.5 cm from right sunshade mirror breakout.
S392	Headliner wiring harness, 6.5 cm from dome light breakout.
S400	Body wiring harness, 4 cm from rear compartment courtesy lamp breakout.
S402	Right taillamp wiring harness, 3 cm from P402.
S403	Left taillamp wiring harness, 3 cm from P401.
S406	Body wiring harness, right side of rear compartment, 4 cm from right radio speaker breakout.
S408	Body wiring harness, right side of rear compartment, 33 cm from C390 breakout.
S409	Body wiring harness, below rear window panel between C405 & C405 breakout, 10 cm from C405 breakout.
S410	Body wiring harness, left floor, under rear seat, 7 cm from C405 breakout.
S414	Body wiring harness, near right side of rear compartment, 5 cm from C420 breakout.
S416	CHMSL wiring harness, center of rear package shelf, 38.5 cm from CHMSL.
S417	CHMSL wiring harness, center of rear package shelf, 20.5 cm from CHMSL.
S418	Main body wiring harness, 7 cm from rear compartment courtesy lamp breakout.
S424	Main body wiring harness, 9 cm from rear compartment courtesy lamp 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 master window switch breakout.
S506	Left front door wiring harness, 4 cm from driver door lock switch breakout.
S604	Right front door wiring harness, in right front door, 8 cm from front passenger window switch breakout.
S606	Left front door wiring harness, 4 cm from driver door lock switch breakout.
S904	Back-up lamp wiring harness, in rear compartment lid, 6.5 cm from P915.
S905	Rear compartment lid wiring harness, in rear compartment lid, 38 cm from P932.
S915	Back-up lamp wiring harness, in rear compartment lid, 29.5 cm from P915.
S919	Back-up lamp wiring harness, in rear compartment lid, 31 cm from P915.