Conditions For Setting DTC

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, and 2002 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

EGR position sensor is 0.29 volts more than the EGR learned minimum position when the desired EGR position is commanded to 0 percent.
The vehicle must be driven.
The condition has to be present 3 times.