Conditions For Setting DTC

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Sierra, 2002 GMC Savana Special, 2002 GMC Savana Camper Special, and 2002 GMC Savana. However, it is still accessible from the selected car via links, so may be relevant.

The vehicle must be driven.
The difference between the desired EGR position and the EGR position sensor is more than 10 percent.
The condition is present for more than 13 seconds.