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 MANUALSCHEVROLET2002AVALANCHE 2500, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 605 (REMOTE KEYLESS ENTRY SYSTEM)
2002 Chevrolet Avalanche 2500, RWD
Section 605 (Remote Keyless Entry System)
2002 Chevrolet Avalanche 2500, RWDSECTION Section 605 (Remote Keyless Entry System)
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
- Schematic And Routing Diagrams
- Component Locator
- Diagnostic Information And Procedures
- Diagnostic Starting Point - Keyless Entry
- Diagnostic System Check - Remote Keyless Entry
- Scan Tool Data List
- Scan Tool Data Definitions
- DTC B3109: 3 Consecutive Low Battery Signals From The Same Programmed Transmitter
- Symptoms - Keyless Entry
- Second Operation Inoperative with Transmitter
- Panic Mode Inoperative
- Keyless Entry System Inoperative
- Repair Instructions
- Description And Operation
- Special Tools And Equipment
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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.