Conditions For Running DTC

WARNING: This page is about a different car, the 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, 2002 Chevrolet Monte Carlo, and 2002 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

The engine load is less than 87 percent.
The engine speed is less than 5000 RPM.
The vehicle speed is greater than 10 MPH.
A misfire DTC is occurring and is requesting the MIL to be illuminated.