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 MANUALSCHEVROLET2002SILVERADO 1500 HD, RWDREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSKEYLESS ENTRY SYSTEM
2002 Chevrolet Silverado 1500 HD, RWD
Keyless Entry System
2002 Chevrolet Silverado 1500 HD, RWDSECTION Keyless Entry System
- Schematic & Routing Diagrams
- Component Locator
- Diagnostic Information & Procedures
- Diagnostic Starting Point - Keyless Entry
- Diagnostic System Check - Remote Keyless Entry
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B3102: Keyless Entry Serial Data Circuit Shorted To Ground
- Symptoms - Keyless Entry
- Visual/Physical Inspection
- Panic Mode Inoperative
- Keyless Entry System Inoperative
- Door Unlock Function Inoperative With Transmitter
- Door Lock Function Inoperative With Transmitter
- Repair Instructions
- Description & Operation
- Special Tools & 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.