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 MANUALSCHEVROLET2007SUBURBAN C1500, 5.3 0REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1085 (ENGINE CONTROLS AND FUEL - 4.3L - TROUBLESHOOTING & DIAGNOSIS)INSPECTION/MAINTENANCE (I/M) SYSTEM DTC TABLE

2007 Chevrolet Suburban C1500, 5.3 0

Inspection/Maintenance (I/M) System DTC Table

2007 Chevrolet Suburban C1500, 5.3 0SECTION Inspection/Maintenance (I/M) System DTC Table

WARNING: This page is about a different car, the 2008 GMC Sierra and 2008 Chevrolet Silverado. 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) Complete System Set Procedure , 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 within the conditions are additional DTCs which, if set, may inhibit the DTCs listed below 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 Monitor	DTC P0420 or P0430 .
Evaporative Emission (EVAP)	DTC P0442 . DTC P0446 . DTC P0451, P0452, P0453, or P0454 . DTC P0455 . DTC P0496 .
Oxygen Sensor	DTC P0131, P0132, P0137, or P0138 . DTC P0133, P0134, P0140, P1133, P2270, P2271, P2A00, or P2A01 . DTC P0151, P0152, P0157, or P0158 . DTC P0153, P0154, P0160, P1153, P2272, P2273, P2A03, or P2A04 .
Oxygen Sensor Heater	DTC P0030, P0036, P0053, P0054, P0135, or P0141 . DTC P0050, P0056, P0059, P0060, P0155, or P0161 .

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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.