Conditions for Running the DTC

The engine is running.
The Ignition 1 Signal voltage parameter is more than 11 volts.
The EGR command will be disabled if the start-up engine coolant temperature (ECT) is less than 5°C (41°F), and will not enable until the ECT is more than 75°C (167°F).
The EGR valve is commanded to 0 percent for 20 seconds after the EGR valve has been commanded to open more than 40 percent for 0.5 second.
The EGR flow test is not running.