Technical Bulletin
(Update Programming for Stored in ECM Fault Memory issues):
The MIL ON with NOx Sensor fault P2201 and/or Exhaust Gas Temperature Sensor faults P050E, P2080, P244C and/or P2478 stored in fault memory due to the Diagnostic strategy being to sensitive. The production solution to this issue was Improved software implemented for model year 2013.
This document discusses the "Fault Codes" necessary to diagnosis, and potential remedy of the issue. The fault codes for checking warranty coverage for servicing the vehicle are also available.
