"Flash: 3.6L powertrain diagnostic and system enhancements this bulletin involves reprogramming the...

Bulletin number

18-057-16 REV. A

Component

Electrical system: software

Summary

"flash: 3.6l powertrain diagnostic and system enhancements this bulletin involves reprogramming the powertrain control module (PCM) with the latest available software. Customers may experience a malfunction indicator lamp (mil) illumination. Upon further investigation, a technician may find the following diagnostic trouble codes (dtcs) have been set: · p1d73 - ags performance - (active grill shutter). · p0171 - fuel system 1/1 lean. · p0174 - fuel system 2/1 lean. The technician may also find the following dtc stored in the anti-lock brake system (ABS) module memory: note: the diagnostic trouble code (dtc) is caused by a calibration in the PCM that is in conflict with the ABS module programming. The new software flash will correct this issue. · c121c-00 - torque request signal denied. This software release also includes: · transmission quick learn. · engine enhancements. "

Owners of these vehicles have filed 397 complaints in the electrical category.