Conditions for Running the DTC

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

No ABS or TCS malfunctions present.
The calibration process is at least partially complete.
The vehicle speed is between 24-145 km/h (15-90 mph).