Conditions for Running the DTC

The engine is running.
The Ignition 1 Signal voltage parameter is more than 11 volts.
The EGR valve is commanded to 0 percent for one second after the EGR valve has been commanded to open more than 40 percent for 0.5 seconds.
The EGR command will be disabled if the startup 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).