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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.3 T, 4L60E/M30REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1527 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B1025, B1035, B1045, OR B1055DIAGNOSTIC FAULT INFORMATION
2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30
Diagnostic Fault Information
2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30SECTION Diagnostic Fault Information
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Left Front Speaker Output (+)/Left Front Low Level Audio Signal (+) | B1025 02, * | 1 | B1025 01, * | - |
| Left Front Speaker Output (-)/Left Front Low Level Audio Signal (-) | B1025 02, * | 1 | B1025 01, * | - |
| Right Front Speaker Output (+)/Right Front Low Level Audio Signal (+) | B1035 02, * | 1 | B1035 01, * | - |
| Right Front Speaker Output (-)/Right Front Low Level Audio Signal (-) | B1035 02, * | 1 | B1035 01, * | - |
| Left Rear Speaker Output (+)/Left Rear Low Level Audio Signal (+) | B1045 02, * | 1 | B1045 01, * | - |
| Left Rear Speaker Output (-)/Left Rear Low Level Audio Signal (-) | B1045 02, * | 1 | B1045 01, * | - |
| Right Rear Speaker Output (+)/Right Rear Low Level Audio Signal (+) | B1055 02, * | 1 | B1055 01, * | - |
| Right Rear Speaker Output (-)/Right Rear Low Level Audio Signal (-) | B1055 02, * | 1 | B1055 01, * | - |
| 1. No or reduced audio * Noticeable audio distortion possible. |
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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.