Conditions for Running the DTC

P0403, P0404, and P042E

• DTCs P0112, P0113, P0405, P0406, P0502, P0562, and P0563 are not set.
• The engine is running.
• The intake air temperature (IAT) is between 3-80°C (37-176°F).
• The ignition voltage is between 11-16 volts.
• The Desired EGR position is greater than 0 percent and does not change more than 3 percent - DTC P0404 only.
• The DTCs run continuously when the above conditions are met.

P0405 and P0406

• The engine is running.
• The ignition voltage is between 11-16 volts.
• The DTC runs continuously when the above conditions are met.