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.
2008 Chevrolet Chevy Express G2500, Van Cargo Extended, 6.0 KFACTORY OEM SERVICE PROCEDURE
Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| 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 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 |
Factory Service Tools
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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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