Question about 2005 Jeep Liberty Renegade

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3.7L V6 engine on help locating the TCM on my 05 liberty renegade

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  • Jeep Master
  • 20,706 Answers

The SM covers this.
chapter 21, page 39, 42RLE

Control of the transmission is accomplished by
fully adaptive electronics. Optimum shift scheduling
is accomplished through continuous real-time sensor
feedback information provided to the Transmission
Control Module (TCM) portion of the Powertrain
Control Module (PCM).


there is no TCM box, all by itself.
do not play with the PCM. leave it alone, and win
yes take measurements and scan it.
did scan it first. seems not.
if you did and there are codes, DTC, the report them.

you must scan it first. after checking fuses.

Posted on Dec 09, 2016

  • 2 more comments 
  • _-__-___-_
    _-__-___-_ Jan 01, 2017

    the exception is if car is in Europe
    with diesel and has its own special trans
    and its very own, special sep. TCM
    But most liberties there are called cherokees. so i guess you are in USA>


    if in usa.
    log in to Mitchell DIY,
    read the book it there.
    end yet another useless, easter egg hunt.
    or next time why not read the parts list on your USA car.
    seen here
    costs NOTHING
    posted over 500 times now.
    learn to look for parts here
    omg there is no TCM. (not in a box)
    but is there, none the less.
    its now in the PCM.
    http://www.factorychryslerparts.com/prod...

  • _-__-___-_
    _-__-___-_ Jan 02, 2017

    why not post symptoms first
    and not play the easter egg game.
    The TCM is not bad,
    99.9% of the time.
    so..... leave it alone or risk making it bad.
    a fact.

    here are some pointers on a/t box.
    1: check levels 1st,
    2: then check fuses, (we test them)
    3 then scan it, next the PCM will tell you all errors from TCM brain section.
    it will. do so. now.
    or its all just guessing and kids games.

    you scan it or they do ,
    pick one.

  • Anonymous Jan 02, 2017

    if you like finding parts all day
    the USA car sparts are all there.
    just answer the questions on the right.


    http://www.factorychryslerparts.com/prod...

  • Anonymous Jan 02, 2017

    all the parts are there, all 4000+
    and there locations clearly shown
    if you try to find TCM it will fail
    it not there, (unless in say Europe)
    most cars moved the TCM to the ECU
    and renamed it to PCM for that fact.
    they did that to save a fortune on computers
    not needed and because modern cars the ECU is not fast enough to do but, at same time.
    speed, pure and raw.

    Id say your box is 42RLE
    if you looked at the service manual
    its there in all chapter on that box.
    and the schematic shows the wires going to the PCM to trans solenoids.
    proof, of , NO TCM BOX now.
    now, i covered this all ways.

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