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 900 (LIGHTING SYSTEMS)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 does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B257A | Headlamp Switch Input Signal Mismatch |
| DTC B1395 | Voltage Threshold |
| DTC B2530 | Front Fog Lamp Control Circuit |
| DTC B2540 | Rear Fog Lamp Control Circuit |
| DTC B2545 | Backup Lamps Circuit |
| DTC B2555 | Passenger Compartment Lamp Control Circuit |
| DTC B2575 | Headlamp Control Circuit |
| DTC B2580 | Headlamp High Beam Control Circuit |
| DTC B2585 | Park Lamp Control Circuit |
| DTC B2600 | Daytime Running Lamp Control Circuit |
| DTC B2610 | Passenger Compartment Dimming 1 Circuit |
| DTC B2615 | Passenger Compartment Dimming 2 Circuit |
| DTC B2625 | Display Dimming Pulse Width Modulation (PWM) Output Circuit |
| DTC B2645 | Ambient Light Sensor Circuit |
| DTC B2652 | Passenger Compartment Dimming 3 |
| DTC B3445 | Stop Lamp Circuit |
| DTC B3600 | Voltage Threshold |
| DTC B3884 | Center High Mounted Stop Lamp (CHMSL) Circuit |
| DTC B3891 | Trailer Fog Lamps 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.