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 1769 (KEYLESS ENTRY SYSTEM AND REMOTE FUNCTIONS)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 B3119 | B3119 00: Keyless Entry Antenna 1 Performance - LF Door Antenna |
| DTC B3120 | B3120 00: Keyless Entry Antenna 2 Performance - RF Door Antenna |
| DTC B3121 | B3121 00: Keyless Entry Antenna 3 Performance - Rear Compartment Antenna |
| DTC B3122 | B3122 00: Keyless Entry Antenna 4 Performance - Console Active Antenna |
| DTC B3123 | B3123 00: Keyless Entry Antenna 5 Performance - Console Passive Antenna |
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.