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 MANUALSCHEVROLET2001SUBURBAN C1500REPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL MODULESDIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC TROUBLE CODE (DTC) LIST
2001 Chevrolet Suburban C1500
Diagnostic Trouble Code (DTC) List
2001 Chevrolet Suburban C1500SECTION Diagnostic Trouble Code (DTC) List
Diagnostic Trouble Code (DTC) List
| DTC | Diagnostic Procedure | Module |
|---|---|---|
| B1000 | DTC B1000 | BCM |
| B1004 | DTC B1004 | BCM |
| B1007 | DTC B1007 | BCM |
| B1009 | DTC B1009 | BCM |
| B1397 | DTC B1397 | BCM |
| B1398 | DTC B1398 | BCM |
| B1477 | DTC B1477 in Retained Accessory Power | BCM |
| B1478 | DTC B1478 in Retained Accessory Power | BCM |
| B1480 | DTC B1480 in Engine Electrical | BCM |
| B2527 | DTC B2527 in Lighting Systems | BCM |
| B2577 | DTC B2577 in Lighting Systems | BCM |
| B2585 | DTC B2585 in Lighting Systems | BCM |
| B2613 | DTC B2613 in Lighting Systems | BCM |
| B2617 | DTC B2617 in Lighting Systems | BCM |
| B2618 | DTC B2618 in Lighting Systems | BCM |
| B2647 | DTC B2647 in Lighting Systems | BCM |
| B2648 | DTC B2648 in Lighting Systems | BCM |
| B2752 | DTC B2752 in Horns | BCM |
| B2947 | DTC B2947 in Theft Deterrent | BCM |
| B2948 | DTC B2948 in Theft Deterrent | BCM |
| B2957 | DTC B2957 in Theft Deterrent | BCM |
| B2958 | DTC B2958 in Theft Deterrent | BCM |
| B2960 | DTC B2960 in Theft Deterrent | BCM |
| B3031 | DTC B3031 in Theft Deterrent | BCM |
| B3033 | DTC B3033 in Theft Deterrent | BCM |
| B3102 | DTC B3102 in Keyless Entry | BCM |
| B3137 or B3138 | DTC B3137 or B3138 in Doors | BCM |
| B3147 or B3148 | DTC B3147 or B3148 in Doors | BCM |
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.