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

Bulletin number

18-073-16

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. 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."

Owners of these vehicles have filed 55 complaints in the electrical category.