18-073-16

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.