Inspection/Maintenance (I/M) System DTC Table

WARNING: This page is about a different car, the 2008 Cadillac CTS. 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 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	DTC P0420 or P0430
EVAP	DTC P0442 DTC P0446 DTC P0455 or P0497 DTC P0496
Oxygen Sensor	DTC P0130 or P0150 DTC P0131 or P0151 (w/o LLT) or DTC P0131 or P0151 (w/LLT) DTC P0132 or P0152 (w/o LLT) or DTC P0132 or P0152 (w/LLT) DTC P0133 or P0153 (w/o LLT) or DTC P0133 or P0153 (w/LLT) DTC P0137, P0138, P0140, P0157, P0158, or P0160 (w/o LLT) or DTC P0137, P0138, P0140, P0157, P0158, or P0160 (w/LLT) DTC P2096 or P2098 (w/o LLT) or DTC P2096 or P2098 (w/LLT) DTC P2097 or P2099 (w/o LLT) or DTC P2097 or P2099 (w/LLT) DTC P2232 or P2235 DTC P2270 or P2272 (w/o LLT) or DTC P2270 or P2272 (w/LLT) DTC P2271 or P2273 (w/o LLT) or DTC P2271 or P2273 (w/LLT)
Oxygen Sensor Heater	DTC P0030, P0031, P0032, P0036, P0037, P0038, P0050, P0051, P0052, P0056, P0057, or P0058 DTC P0135, P0141, P0155, or P0161