"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.**"
