Conditions for Setting the DTC

P0403 

The ECM detects an electrical malfunction in the EGR solenoid high control circuit or the EGR solenoid low control circuit for more than 10 seconds.

P0404 

The difference between the EGR Position Sensor and the desired EGR Position is more than 15 percent for more than 34 seconds.

P0405

• The EGR position sensor is less than 0.11 volts for more than 5 seconds.
• The above condition is met for more than 20 seconds.

P0406 

The EGR position sensor voltage is more than 4.77 volts for more than 18 seconds.

P042E

• The EGR position sensor is 0.4 volt more than the EGR Learned Minimum Position when the Desired EGR Position is commanded to 0 percent for 24 seconds.
• The EGR position sensor is more than 30 percent and is steady for 5 seconds after a test failure and before the next test will be run.
• The above conditions are met 4 times.