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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 298 (ENGINE CONTROL SYSTEM - 3.6L (LY7) - TROUBLESHOOTING & DIAGNOSIS)INSPECTION/MAINTENANCE (I/M) SYSTEM DTC TABLE
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Inspection/Maintenance (I/M) System DTC Table
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Inspection/Maintenance (I/M) System DTC Table
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Inspection/Maintenance (I/M) System DTC Table
| System | DTCs Required to Set System Status to YES |
|---|---|
| Catalyst | DTC P0420 |
| EVAP | DTC P0442 DTC P0446 DTC P0455 DTC P0496 |
| Oxygen Sensor | DTC P0130 DTC P0131 DTC P0132 DTC P0133 DTC P0137 DTC P0138 DTC P0140 DTC P167A DTC P2096 DTC P2097 DTC P2195 DTC P2196 DTC P2231 DTC P2232 DTC P2237 DTC P2243 DTC P2251 DTC P2270 DTC P2271 |
| Oxygen Sensor Heater | DTC P0030 or P0036 DTC P0031 or P0037 DTC P0032 or P0038 DTC P0053 DTC P0135 DTC P0141 |
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.