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.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 798 (LIGHTING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Diagnostic Code Index
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1482 | Battery Rundown Protection Circuit Low |
| DTC B2532 | Front Fog Lamps Control Circuit Low |
| DTC B2533 | Front Fog Lamps Control Circuit High |
| DTC B2575 | Headlamp Control Circuit |
| DTC B2577 | Headlamp Relay Output Circuit Low |
| DTC B2578 | Headlamp Relay Output Circuit High |
| DTC B2585 | Park Lamp Circuit |
| DTC B2587 | Park Lamp Relay Output Circuit Low |
| DTC B2588 | Park Lamp Relay Output Circuit High |
| DTC B2600 | Daytime Running Lamp Control Circuit |
| DTC B2602 | Daytime Running Lamp Circuit Low |
| DTC B2603 | Daytime Running Lamp Circuit High |
| DTC B2622 | Display Dimming Pulse Width Modulation (PWM) Input Circuit Low |
| DTC B2623 | Display Dimming Pulse Width Modulation (PWM) Input Circuit High |
| DTC B2627 | Display Dimming Pulse Width Modulation (PWM) Output Circuit Low |
| DTC B2628 | Display Dimming Pulse Width Modulation (PWM) Output Circuit High |
| DTC B2647 | Ambient Light Sensor Circuit Low |
| DTC B2662 | Park Lamp Relay Output Circuit Low |
| DTC B2743 | Fog Lamp Switch Circuit High |
| DTC P0504 | Brake Switch Circuit 1-2 Correlation |
| DTC P1574 (ECMw/L61) | Stop Lamp Switch Circuit |
| DTC P1574 (PCMw/L66) | Stop Lamp Switch Circuit |
| DTC P1574 (TCMw/L61w/MN5) | Stop Lamp Switch Circuit |
RENDER: 1.0x
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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.