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 CODE INDEX
2001 Chevrolet Suburban C1500
Diagnostic Code Index
2001 Chevrolet Suburban C1500SECTION Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1000 | Module Has Detected An Internal Malfunction |
| DTC B1004 | KAM in the module has been reset |
| DTC B1007 | EEPROM data does not match |
| DTC B1009 | Inverse Copy Of The Digital Value Does Not Equal 0 |
| DTC B1397 | BCM 5 Volt Reference Output Circuit Is Less Than 4.75 Volts |
| DTC B1398 | BCM 5V Reference Circuit Above 5.25V |
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.