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.
2000 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE
Anti-Theft DTCS
ANTI-THEFT DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| B2947 | Passlock™ Sensor Power Circuit Low |
| B2948 | Passlock™ Sensor Power Circuit High |
| B2957 | Passlock™ Sensor Data Circuit Low |
| B2958 | Passlock™ Sensor Data Circuit High |
| B2960 | Passlock™ Sensor Data Incorrect But Valid |
| B2964 | Key In Ignition Circuit High |
| B3031 | Controller In Learn Mode |
| B3033 | System Indicates Tamper |
Factory Service Tools
Use the Manual With the Right Hardware
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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.