Conditions for Updating the I/M System Status

WARNING: This page is about a different variant/trim than selected.

NOTE: New vehicles may not report an Inspection/Maintenance System Check pass or fail status for certain post catalyst oxygen sensor or heated oxygen sensor 2 diagnostics prior to 700 miles. After replacing a catalytic converter on a vehicle with greater than 700 miles, it may require up to an additional 700 miles to prevent a false failure status.

Each system monitor requires at least one and sometimes several, diagnostic tests. The results of these tests are reported by a DTC. A system monitor completes when either all DTCs comprising the monitor have run and passed or any DTC comprising the monitor has illuminated the malfunction indicator lamp (MIL). Once the monitor completes, the Inspection/Maintenance System Status or Data will indicate YES in the Completed or Value column. For example, when the Misfire Monitoring System Status display indicates YES, all of the misfire components have been diagnosed. The Inspection/Maintenance System Status or Data will indicate NO in the Completed or Value column when any of the required DTCs for that system have not run. The following is a list of conditions that would set the Inspection/Maintenance System Status or Data indicators to NO:

The vehicle is new from the factory and has not yet been driven through the necessary drive conditions to complete the system monitor.
The battery has been disconnected or discharged below operating voltage.
The control module power or ground has been interrupted.
The control module has been reprogrammed.
The control module DTCs have been cleared as part of a service procedure.