Flash: DTC P0405 / P0406 - MIL Light On
This bulletin involves reprogramming the Engine Control Module (ECM) with new software.
A small number of customers may report the MIL light is on. On further inspection
Diagnostic Trouble Code (DTC), P0405 - EGR POSITION SENSOR CIRCUIT LOW and/or
P0406 - EGR POSITION SENSOR CIRCUIT HIGH may be found.