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 1742 (DOOR LOCK SYSTEM AND DOOR HANDLES)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 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1474 | B1474 02: Exterior Passenger Door Handle Switch Circuit Short to Ground |
| DTC B2730 | B2730 02: Trunk Release Switch Circuit Short to Ground |
| DTC B3062 or B3067 | B3062 02: Front Door Key Lock Switch Circuit Short to Ground B3067 02: Front Door Key Unlock Switch Circuit Short to Ground |
| DTC B3140 or B3150 | B3140 02: Unlock Switch Circuit Short to Ground B3150 02: Lock Switch Circuit Short to Ground |
| DTC B3618 | B3618 02: Exterior Trunk Release Switch Circuit Short to Ground |
| DTC B3849 | B3849 02: Exterior Door Handle Switch Circuit Short To Ground |
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.