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.
2003 Buick Century BaseFACTORY OEM SERVICE PROCEDURE
Lighting DTCS
LIGHTING DIAGNOSTIC TROUBLE CODE (DTCS) LIST
| DTC | Description |
|---|---|
| DTC B1482 | Inadvertent Power Short to Ground |
| DTC B2533 | Front Fog Lamps Control Circuit High |
| DTC B2552 | Backup Lamps Control Circuit Low |
| DTC B2553 | Backup Lamps Control Circuit High |
| DTC B2559 | Courtesy Lamps Ground Open |
| DTC B2577 | Headlamp Control Circuit Low |
| DTC B2578 | Headlamp Control Circuit High |
| DTC B2587 | Parklamp Control Circuit Low |
| DTC B2588 | Parklamp Control Circuit High |
| DTC B2603 | DRL Control #1 Circuit High |
| DTC B2608 | DRL Control #2 Circuit High |
| DTC B2617 | Pass Compartment Dimming #2 Circuit Low |
| DTC B2618 | Pass Compartment Dimming #2 Circuit High |
| DTC B2647 | Ambient Light Sensor Circuit Low |
| DTC B2648 | Ambient Light Sensor Circuit High |
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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