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.
2007 Saturn Sky Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Lighting DTCS
LIGHTING DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | DEFINITION |
|---|---|
| DTC B1480 | Battery Rundown Protection Circuit No Additional Information |
| DTC B2530 | Front Fog Lamps Control Circuit Short to Ground, or Open or Short to Voltage |
| DTC B2555 | Passenger Compartment Lamp Control Circuit Open or Short to Battery |
| DTC B2580 | Headlamp High Beam Control Circuit Short to Ground, or Open or Short to Voltage |
| DTC B2625 | Display Dimming Pulse Width Modulation (PWM) Output Circuit Short to Ground |
| DTC B2645 | Ambient Light Sensor Circuit Short to Ground/Battery, or Open |
| DTC B3903 | Stop Lamp Relay Circuit Short to Ground, or Open or Short to Voltage |
| DTC B3948 or B3949 | Front Turn Signal Circuits Short to Ground, or Open or Short to Voltage |
| DTC B3950 or B3951 | Rear Turn Signal Circuits Short to Ground, or Open or Short to Voltage |
| DTC C0277 | Brake Pedal Position Sensor Circuit |
| DTC C0278 | Brake Pedal Position Sensor Not Calibrated |
| DTC C0870 | Device Voltage Reference Output 1 Circuit Voltage Below/Above Threshold |
| DTC P0572 | Brake Switch Circuit 1 Low Voltage |
| DTC P0573 | Brake Switch Circuit 1 High Voltage |
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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