Conditions For Setting DTC

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 Pontiac Grand Prix, 2003 Pontiac Bonneville, 2003 Chevrolet Monte Carlo, 2003 Chevrolet Impala, and 2003 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

The EGR position sensor parameter is 0.28 volt more than the EGR Learned Minimum Position parameter when the Desired EGR Position parameter is commanded to zero percent for 0.5 second.
The EGR Position Sensor parameter is more than 40 percent and is steady for 0.5 second after a test failure and before the next test will be run.
The conditions are met 4 times.