Code Enable Criteria

WARNING: This page is about a different car, the 2001 GMC Savana, 2001 Chevrolet RV Cutaway, 2001 Chevrolet Cutaway, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Ignition voltage is more than 11.7 volts.
Commanded EGR position is more than zero percent.
EGR flow test is not active.
Desired EGR does not change more than 20 percent.

Vehicle must be driven. DTC sets when the difference between desired EGR position and EGR position sensor is more than 10 percent for more than 13 seconds.