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.
2002 Saturn L300FACTORY OEM SERVICE PROCEDURE
Lighting DTCS
LIGHTING DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B1482 | BATTERY RUNDOWN PROTECTION SHORTED TO GROUND |
| DTC B2622 | DISPLAY DIMMING PWM INPUT CIRCUIT LOW |
| DTC B2623 | DISPLAY DIMMING PWM INPUT CIRCUIT HIGH |
| DTC B2627 | DISPLAY DIMMING PWM OUTPUT CIRCUIT LOW |
| DTC B2628 | DISPLAY DIMMING PWM OUTPUT CIRCUIT HIGH |
| DTC B2575 | HEADLAMP CONTROL CIRCUIT MALFUNCTION |
| DTC B2577 | HEADLAMP CONTROL CIRCUIT LOW |
| DTC B2578 | HEADLAMP CONTROL CIRCUIT HIGH |
| DTC B2585 | PARKLAMP CONTROL CIRCUIT MALFUNCTION |
| DTC B2587 | PARKLAMP CONTROL CIRCUIT LOW |
| DTC B2588 | PARKLAMP CONTROL CIRCUIT HIGH |
| DTC B2600 | DAYTIME RUNNING LAMP CONTROL #1 CIRCUIT MALFUNCTION |
| DTC B2602 | DAYTIME RUNNING LAMP CONTROL #1 CIRCUIT LOW |
| DTC B2603 | DAYTIME RUNNING LAMP CONTROL #1 CIRCUIT HIGH |
| DTC B2640 | DELAYED EXTERIOR LIGHTING CONTROL CIRCUIT MALFUNCTION |
| DTC B2647 | AMBIENT LIGHT SENSOR CIRCUIT LOW |
| DTC B2662 | PARK LAMP SWITCH CIRCUIT MALFUNCTION |
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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