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 699 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 2.2L (L61) - 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 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
| System | DTCs Required to Set System Status to YES |
|---|---|
| If an I/M System Status indicator did NOT update to YES during the Inspection/Maintenance (I/M) System Check , review each indicator and reference this table to determine each DTC associated with the I/M System Status Indicator. Each DTC listed below has specific conditions that must be met for the diagnostic to run. Included in these conditions are additional DTCs which, if set, will inhibit these DTCs from running. Reviewing and operating the vehicle within the Conditions for Running for each DTC listed below will allow the I/M System Status Indicators to transition to YES. | |
| Catalyst | DTC P0420 |
| EVAP | DTC P0442 DTC P0443 or P0449 DTC P0446 DTC P0451, P0452, P0453, or P0454 DTC P0455 DTC P0496 |
| Oxygen Sensor | DTC P0131, P0132, P0137, or P0138 DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 |
| Oxygen Sensor Heater | DTC P0030, P0036, P0053, P0054, P0135, or P0141 |
| Secondary AIR Injection | DTC P0411 DTC P0412 or P0418 DTC P2430-P2433 DTC P2440 DTC P2444 |
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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.