Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1997 Buick Century CustomFACTORY OEM SERVICE PROCEDURE
Connector Terminal Identification
- *Please Read This First*
- Connectors C-100 To C-430
- Accessory Switch
- Accessory Time Delay (Rap) Relay
- Automatic Transaxle
- Blower Motor
- Body Control Module (BCM)
- Brake Motor
- Crankshaft Position Sensor (CKP)
- Data Link Connector
- Daytime Running Lamp
- Door Lock Connectors
- Driver Information Display
- Driver Seat
- Electric Actuator (HVAC System)
- Century & Regal
- Left Hand (HVAC System A/C Front, Manual Controls/Manual Temperature Control, Auxiliary Temperature Control)
- Left Hand (HVAC System, A/C Front, Automatic Temperature Control, Auxiliary Temperature Control)
- Right Hand (HVAC System, A/C Front, Automatic Temperature Control, Auxiliary Temperature Control)
- Right Hand (HVAC System, A/C Front, Manual Temperature Control, auxiliary Temperature Control)
- Cutlass Supreme, Lumina & Monte CARLO
- Grand PRIX
- Century & Regal
- Electronic Brake Control Relay
- Electronic Traction Control
- Exhaust Gas RECIRCULATION (EGR) Valve
- Fog Lamp
- Fore/Aft Lumbar
- Fuel Tank
- Generator
- Hazard Lamp/Turn Signal
- Headlamp
- Heated Oxygen Sensor (Ho2S)
- Heater-A/C Control
- Century & Regal
- Cutlass Supreme, Lumina & Monte CARLO
- Heater-A/C Control C1 (HVAC System, A/C Front, Electronic Controls)
- Heater-A/C Control C2 (HVAC System, A/C Front, Electronic Controls)
- Heater-A/C Control C3 (HVAC System, A/C Front, Electronic Controls)
- Heater-A/C Control (HVAC System, A/C Front, Automatic & Auxiliary Temperature Control)
- Heater-A/C Control C1 (Chevrolet)
- Heater-A/C Control C2 (Chevrolet)
- Grand PRIX
- Idle Air Control (IAC) Valve
- Ignition Control (Ic) Module
- Mobile Telephone
- Passenger Heater-A/C
- Passenger Seat
- Rear Compartment
- Rearview Mirror
- Rear Window Defogger
- Remote Control Door Locks
- Seat Belt/Ignition Key & Lamps
- Splice Pack
- STOPLAMP Switch
- Theft Deterrent System
- Transaxle
- UNDERHOOD (Uh) Electrical
- Vacuum/Electric Solenoid
- Window Switch
- Century & Regal
- Cutlass Supreme, Lumina & Monte CARLO
- Window Switch, Left Hand (Chevrolet 2 Door)
- Window Switch, Right Front (Chevrolet 2 Door)
- Window Switch, Right Hand (Chevrolet 4 Door)
- Window Switch C1, Left Front (Chevrolet)
- Window Switch C2, Left Front (Chevrolet)
- Window Switch, Left Rear & Right Rear (Chevrolet)
- Window Switch C1, Left Front (Oldsmobile)
- Window Switch C2, Left Front (Oldsmobile)
- Window Switch, Left Front (Oldsmobile 2 Door)
- Window Switch, Left Rear (Oldsmobile)
- Window Switch, Right Front (Oldsmobile)
- Window Switch, Right Rear (Oldsmobile)
- Grand PRIX
- Windshield Wiper
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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