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 MANUALSCHEVROLET2001CAB & CHASSIS SILVERADO 2D PICKUP, 8.1 G, 4WD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXLIGHTING SYSTEM - DIAGNOSTIC TROUBLE CODES
2001 Chevrolet Cab & Chassis Silverado 2D Pickup, 8.1 G, 4WD, Automatic
Lighting System - Diagnostic Trouble Codes
2001 Chevrolet Cab & Chassis Silverado 2D Pickup, 8.1 G, 4WD, AutomaticSECTION Lighting System - Diagnostic Trouble Codes
LIGHTING SYSTEM - DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B1480 | No Voltage On Courtesy Lamps Supply Voltage Circuit When Expected |
| DTC B2527 | Front Fog Lamp Switch Signal Circuit Shorted To Ground |
| DTC B2577 | Headlamp Relay Coil Supply Voltage Circuit Shorted To Ground |
| DTC B2585 | Short To Ground In Interior Park Lamps Supply Voltage Circuit Or Open In Park Lamp Relay Control Circuit |
| DTC B2613 | Instrument Panel Lamp Supply Voltage Circuit Shorted To Battery Voltage |
| DTC B2617 | Courtesy Lamp Relay Coil Control Circuit Open Or Shorted To Ground |
| DTC B2618 | Courtesy Lamp Relay Coil Control Circuit Open Or Shorted To Ground |
| DTC B2642 | Ground Illumination Relay Control Circuit Open Or Shorted To Ground |
| DTC B2643 | Ground Illumination Relay Control Circuit Shorted To Battery Voltage |
| DTC B2647 | Ambient Light Sensor Signal Circuit Open Or Shorted To Ground |
| DTC B2648 | Ambient Light Sensor Signal Shorted To The Battery |
RENDER: 1.0x
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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.