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 2061 (CELLULAR SYSTEMS, ENTERTAINMENT SYSTEMS & NAVIGATION 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 is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B0000 | B0000 5A: Vehicle Speed Information Circuit Plausibility Failure |
| DTC B1024 | B1024 11: Circuit Board Temperature Sensor Above Maximum Threshold |
| DTC B1025, B1035, B1045, or B1055 | B1025 01: Audio Output 1 Left Front Circuit Short to Battery B1025 02: Audio Output 1 Left Front Circuit Short to Ground B1035 01: Audio Output 2 Right Front Circuit Short to Battery B1035 02: Audio Output 2 Right Front Circuit Short to Ground B1045 01: Audio Output 3 Left Rear Circuit Short to Battery B1045 02: Audio Output 3 Left Rear Circuit Short to Ground B1055 01: Audio Output 4 Right Rear Circuit Short to Battery B1055 02: Audio Output 4 Right Rear Circuit Short to Ground |
| DTC B1259 | B1259 02: Antenna Ground Circuit Short to Ground B1259 05: Antenna Ground Circuit Short to Battery or Open |
| DTC B1287 | B1287 01: Amplifier Control Signal Circuit Short to Battery B1287 02: Amplifier Control Signal Circuit Short to Ground B1287 04: Amplifier Control Signal Circuit Open |
| DTC B1288 | B1288 01: Video Display Mode Control Signal Short to Battery B1288 02: Video Display Mode Control Signal Short to Ground B1288 04: Video Display Mode Control Signal Open Circuit |
| DTC B1289 | B1289 01: Video Display Brightness Control Signal Short to Battery B1289 02: Video Display Brightness Control Signal Short to Ground B1289 04: Video Display Brightness Control Signal Open Circuit |
| DTC B1449 | B1449 03: Remote Device Voltage Below Threshold B1449 07: Remote Device Voltage Above Threshold |
| DTC B2455 | B2455 04: Cellular Phone Microphone Circuit Malfunction Open Circuit |
| DTC B2462 (Navigation Radio) | B2462 02: Global Positioning System (GPS) Short to Ground B2462 04: Global Positioning System (GPS) Open Circuit |
| DTC B2462 (Communication Interface Module) | B2462 02: Global Positioning System (GPS) Signal Short to Ground B2462 04: Global Positioning System (GPS) Signal Open Circuit |
| DTC B2470 | B2470 04: Cellular Phone Antenna Circuit Malfunction Open Circuit |
| DTC B2474 | B2474 07: Navigation Display Head Backlighting Performance |
| DTC B2476 or B2482 | B2476 04: Cellular Phone Select Service Switch Open Circuit B2476 59: Cellular Phone Select Service Switch Stuck Button B2482 00: Cellular Phone Select Service Switch Range/Performance |
| DTC B2485 | B2485 02: Wireless Communication Antenna Circuit Short to Ground B2485 04: Wireless Communication Antenna Circuit Open 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.