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.
2009 GMC Canyon 4D Pickup, 2.9 9FACTORY OEM SERVICE PROCEDURE
Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B2957, B2958, B2960, or B3033 | B2957: Security System Sensor Data Circuit Low B2958: Security System Sensor Data Circuit High B2960: Security System Sensor Data Incorrect but Valid B3033: Security System Indicates Tamper |
| DTC B3031 (North America, except Canada) | B3031: Security System Controller In Learn Mode |
| DTC B3031 (Canada, Europe, Middle East, and Asia) | B3031: Security System Controller In Learn Mode |
| DTC B3055 | B3055: No Transponder Modulation or No Transponder |
| DTC B3060 | B3060: Unprogrammed Transponder Identification Code Received |
| DTC B3935 | B3935: Transponder Authentication Error |
| DTC B3976 | B3976: Unconfigured Transponder |
| DTC P1630 | P1630: Theft Deterrent Learn Mode Active |
| DTC P1631 | P1631: Theft Deterrent Fuel Enable Signal Not Correct |
Factory Service Tools
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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.
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