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 MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1844 (DTC INDEX)INSTRUMENT PANEL DTCS
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Instrument Panel DTCS
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Instrument Panel 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.
INSTRUMENT PANEL DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | DEFINITION |
|---|---|
| DTC B2965 | Key In Ignition Circuit Open |
| DTC P0461 | Fuel Level Sensor 1 Performance |
| DTC P0462 | Fuel Level Sensor 1 Circuit Low Voltage |
| DTC P0463 | Fuel Level Sensor 1 Circuit High Voltage |
| DTC P0464 | Fuel Level Sensor 1 Circuit Intermittent |
| DTC P0520 | Engine Oil Pressure (EOP) Switch Circuit |
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.