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 PROCEDURESDTC B1259DIAGNOSTIC FAULT INFORMATION
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Diagnostic Fault Information
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Diagnostic Fault Information
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.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ Voltage | - | 1 | - | - |
| Ground | - | 1 | - | - |
| Left Audio Signal (+) | 2 | 2 | 2 | - |
| Left Audio Signal (-) | 2 | 2 | 2 | - |
| Right Audio Signal (+) | 3 | 3 | 3 | - |
| Right Audio Signal (-) | 3 | 3 | 3 | - |
| Digital Radio Antenna Coax | B1259 02 | B1259 05 | B1259 05 | - |
| 1. No communication with DRR/XM not available 2. No or distorted audio from left side speakers when listening to digital radio 3. No or distorted audio from right side speakers when listening to digital radio |
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RENDER: 1.0x
NO RELATED
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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.