Flash: 3.6L Powertrain Diagnostic And System Enhancements.
This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest
available software.
A small number of customers may experience a Malfunction Indicator Lamp (MIL)
illumination. Upon further investigation the technician may find the following Diagnostic
Trouble Codes (DTCs) set in the PCM memory:
· P0335 - Crankshaft Position Sensor Circuit.
· P0456 - EVAP System Small Leak.
· P2610 - PCM Internal Engine Off Timer Performance.
In addition to the above DTCs, this software release also includes:
· Enhancements to the disable misfire monitor when P0335 is present.
· Add a global disable to small leak monitor when the fuel level is above 88%.
· Update small leak diagnostic to require 5 minutes of engine runtime and 120
minutes of engine off time.
· Updates to prevent false failure due to wrong ambient temperature reading.
