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 MANUALSGMC2001SONOMA 2D PICKUP, 2.2 5, AUTOMATICREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXBODY CONTROL MODULE DTCS
2001 GMC Sonoma 2D Pickup, 2.2 5, Automatic
Body Control Module DTCS
2001 GMC Sonoma 2D Pickup, 2.2 5, AutomaticSECTION Body Control Module DTCS
BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| B1000 | Body Control Module Malfunction |
| B1397 | Device Voltage Reference Out No. 1 Circuit Low |
| B1398 | Device Voltage Reference Out No. 1 Circuit High |
| B1477 | RAP Circuit Low |
| B1478 | RAP Circuit High |
| B1480 | Battery Rundown Protection Circuit Malfunction |
| U1000 & U1255 | CLASS 2 COMMUNICATION MALFUNCTION |
| U1001-U1254 | LOSS OF UXXX COMMUNICATIONS |
| U1300 | Class 2 Serial Data Link Low |
| U1301 | Class 2 Serial Data Link High |
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.