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 DIAGNOSISBODY & FRAMEDOOR LOCKSANTI-THEFT SYSTEMDIAGNOSTIC 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 |
|---|---|---|
|
IMPORTANT:
Before you use this table, diagnose P0601, P0602, P0604, and P0606. Refer to Diagnostic System Check - Theft Deterrent . |
||
| B2947 | DTC B2947 | BCM |
| B2948 | DTC B2948 | BCM |
| B2957 | DTC B2957 | BCM |
| B2958 | DTC B2958 | BCM |
| B2960 | DTC B2960 | BCM |
| B2973 | Content Theft Deterrent (CTD) Does Not Disarm with Key Lock | BCM |
| B3031 | DTC B3031 | BCM |
| B3033 | DTC B3033 | BCM |
| P1626 | DTC P1626 | PCM |
| P1631 | DTC P1631 | PCM |
| PXXXX Other PCM DTCs Refer to the following procedure: DTC P0192 in Engine Controls - 6.6L |
||
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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.