Go With God

Chrysler and Jeep Vehicles

have many Modules that Auto Configure.

      New and Rebuilt OEM modules are not configured out of the box. At every key on

       cycle these modules look on the vehicles network to find all other communicating

       modules. Then it is determined how every module is configured, and using this information

       the new module "auto configures" to allow it to work properly with the vehicles systems.

           This is often called "Plug and Play". Then additional Initializing and Programing is

        performed by C & e.

        This can and does lead to critical issues if a tech installs a used module for test 

        purposes.

    .  
         If a module out of another vehicle is installed for test purposes, on the next key cycle
         all modules may rewrite this new VIN and other variant files to match. One or more

         modules may have to be replaced if this occurs. These "was" working modules,

         programming may not salvage them. You will now have several shiny door stops.

         A PCM is the only module that (in most cases) can be swapped out for test purposes

         with out damaging other modules. But, nine out of ten vehicles have an immobilizer

         system that will prevent the used PCM module from starting, so it may be a wast

         of diagnostic time. Call for details.

         As a general rule of thumb, when working on non Can Network vehicles

         it is critical to not plug in a used BCM or ABS module.

              Can Network  vehicals are very susceptible to damage. The PCM can be

         swapped out with a used one, but now a Factory OEM scanner must be used

         to rewrite the VIN, setup the Immobilizer and program it to the most current

         calibration. Then perform reconfiguration on several modules.

         Warning on CAN Network vehicles

         If any other module is swapped out with a used one, system damage will

         occur. Call for details.

         Finding a list of which vehicles have a Can Network and which ones do not,

         is hard to locate. Below is a chart listing what models first had a Can Network

         and the year. Hope it helps.

              2004    

         Durango

         2005

         Grand Cherokee

         Dakota

         300, Magnum

         2006

         Commander

         PT Cruiser

         Charger

         Liberty

         Ram

         2007

         Crossfire

         Sprinter

         Caliber

         Compass

         Nitro

         Avenger, Sebring

         Wrangler

         Aspen

         Pacifica

        2008

        Viper

        Town & Country

        Caravan

        Patriot

        2009

        All

        Critical Information on Chrysler and Jeep Modules

   C& e Auto Tech

714 356-7481

kenelliott@ceautotech.com