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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1512 (DTC INDEX)THEFT DETERRENT DTCS
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Theft Deterrent DTCS
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Theft Deterrent DTCS
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
THEFT DETERRENT DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | DEFINITION |
|---|---|
| DTC B0688 | Security System Indicator Circuit High |
| DTC B0689 | Security System Indicator Circuit Open |
| DTC B2947 | Security System Sensor Power Circuit Low |
| DTC B2948 | Security System Sensor Power Circuit High |
| DTC B2957 | Security System Sensor Data Circuit Low |
| DTC B2958 | Security System Sensor Data Circuit High |
| DTC B2960 | Security System Sensor Data Incorrect But Valid |
| DTC B3031 | Security System Controller In Learn Mode |
| DTC B3033 | Security System Indicates Tamper |
| DTC P1626 | Theft Deterrent Fuel Enable Signal Lost |
| DTC P1630 | Theft Deterrent Learn Mode Active |
| DTC P1631 | Theft Deterrent Start Enable Signal Not Correct |
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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.