Code Enable Criteria

• Commanded EGR position zero percent.
• Engine speed is less than 5000 RPM.
• EGR valve has been commanded to cycle greater than 61 percent 4 times.
• Ignition voltage is greater than 11 volts.

DTC sets when EGR position is greater than 4 percent for greater than 20 seconds.

Or,

• Commanded EGR position zero percent.
• Engine speed is greater than 5000 RPM.
• EGR valve has been commanded to cycle greater than 61 percent 4 times.
• Ignition voltage is greater than 11 volts.

DTC sets when EGR position is greater than 7.8 percent for greater than 20 seconds.