Question about 1998 Mitsubishi Eclipse

6 Answers

I have a 1998 RS Mitsbushi Eclispe 2.0 automatic 4. cyl

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  • Kelly Comstock
    Kelly Comstock Mar 31, 2011

    What is your problem?

  • Tania Nole
    Tania Nole Apr 01, 2011

    I need to replace my transmission control module, I need to know where this is located on my car and how to replace it .

  • Tania Nole
    Tania Nole Apr 02, 2011

    1998 mitshubshi eclispe RS just want info on my model and year..transmission module control detail on how to find and replace

  • Tania Nole
    Tania Nole Apr 02, 2011

    What is the strut tower, and is the intake air box the filter, I found a place that send the TCM already programmed with you car speck , is this good to do, they say send them the information they will set so all I would have to do is replace it and drive.?

  • Tania Nole
    Tania Nole Apr 02, 2011

    I was told that it was in front of my light on my passenger side.
    Do you have picture or diagram

  • Tania Nole
    Tania Nole Apr 04, 2011

    I need more info, this is not really helping much, do you have diagram of where to find this, 1998 Mitsubshi Eclispe RS Automatic FWD,

    Where is the Transmission Control Module for only my model, I keep getting different answers, does anyone really know not for any other model except my year and model

  • Tania Nole
    Tania Nole Apr 04, 2011

    Car is stuck in 2 and gear, I already got a diagnois...just want to do the repair myself, already have the part it pre-programmed so I can put it in if I can find where is part is located on my vehichle..( Transmission Control Module ) 1998 Mitsubishi Eclispe 2.0 engine , automatic

  • Tania Nole
    Tania Nole Apr 04, 2011

    Car is stuck in 2 and gear, I already got a diagnois...just want to do the repair myself, already have the part it pre-programmed so I can put it in if I can find where is part is located on my vehichle..( Transmission Control Module ) 1998 Mitsubishi Eclispe 2.0 engine , automatic can you send a diagram or some kind of picture, I have gotten so many different position answers , I not sure what to go by. I am getting fustrated. I have gotten answers about every model except mine , I need just information regarding my year and model please.

  • Tania Nole
    Tania Nole Apr 07, 2011

    Car is stuck in Second, I need an explanation on how to change the Transmission control module, and where it is located, on my model, so far no one can be clear on this if you have a picture on diagram that would be very helpful thanks. I have the module and now I need to replace the old with the new one, but dont know where it is located on my car, do you have any photos that can help or give me a very clear explanation

  • Tania Nole
    Tania Nole Apr 07, 2011

    is it the postive cable red or negative black to remove?

  • Tania Nole
    Tania Nole Apr 07, 2011

    do i have to remove the total console cover or can I just remove the sides and do I disconnec t the positive or negative battery cable?

  • Tania Nole
    Tania Nole Apr 08, 2011

    Yes the TCM was in that spot, it's been changed your help was the best...

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6 Answers

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  • Mitsubishi Master
  • 17,970 Answers

What is the problem?

Posted on Apr 04, 2011

  • ZJ Limited
    ZJ Limited Apr 07, 2011

    A604 Transmissions:
    The transmission above is a 4 speed front wheel drive automatic, that is all computer controlled. If your transmission starts shifting erratic or stays in second gear only, then make sure you or a shop run a scanner on the vehicle. You want to see if you have a sensor that has gone bad causing your problems. Also make sure you check the clutch volume index (c.v.i.). This helps determine the condition of the transmission. Chevy's and Ford's do not have this neat little feature.

    Vehicle's with A604 transmissions have chronic input and output speed sensor problems and also with the little wire connectors to those input and output speed sensors. The dealer offers a repair kit for these wires instead of buying a whole new wire harness.

    About the TRANSMISSION CONTROL MODULE location, check the next diagram or click over image to go to the Mitsubishi Automatic Transmission Diagnostic...




    Also, this could apply to your situation I think:
    "FAIL-SAFE FUNCTION
    If a problem which interferes with the continuous safe operation of the transaxle is identified, the TCM records a diagnostic trouble code in memory, all solenoids are turned off, and the module is switched to limp-in mode.

    When limp-in mode is started, the transaxle is locked in 2nd gear if a drive gear had previously been selected. Meanwhile, if P, R or N range was selected, operation is as usual.

    If the ignition key is turned to OFF and then back to ON again, limp-in mode is canceled (a record is retained)."

    I'd suggest you have the transmission control module scanned for diagnostic trouble codes. We need these to have a clue what's going on here. It could be something fairly simple, like a defective low temperature switch, which tells the transmission not to shift until the transmission fluid warms up.


    Keep us updated.

  • ZJ Limited
    ZJ Limited Apr 08, 2011

    About what asnwer (or expert) is your comment?

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  • Mitsubishi Master
  • 1,940 Answers

The automatic transaxle control module is around the center console, close to the floor, to the right of the gas pedal. You will need to remove the plastic center console cover to access the TCM.

Posted on Apr 03, 2011

  • Jeremy Moore
    Jeremy Moore Apr 04, 2011

    The following link is a diagram of where the TCM, or Transaxle Control Module is located:http://www.4shared.com/photo/Pn-Y6uxg/19...

  • Jeremy Moore
    Jeremy Moore Apr 07, 2011

    You should be able to remove the TCM by removing the drivers side plastic console side cover. Disconnect the negative battery cable, and then the positive cable.

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  • Mitsubishi Master
  • 6,993 Answers

Hello,

You didn't state the problem with your 1998 RS Mitsbushi Eclispe 2.0 automatic 4. cyl.

I look forward to your reply....

Bye for now.

Posted on Apr 01, 2011

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  • Master
  • 2,187 Answers

Hi there. In order to help you better. Can I get the exact issue you are having? Thanks

Posted on Apr 04, 2011

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  • Expert
  • 176 Answers

Can you elaborate on your problem, and is the check engine light on?

Posted on Apr 02, 2011

  • TXTEXAN Apr 02, 2011

    Your transmission control module is in front(closer to headlights) of your driver side strut tower, behind your intake air box.



    It's actually quite exposed, and the procedure for replacement is short:



    Disconnect negative battery cable, unbolt the module bracket, remove connectors, and replace with new unit, reverse for install.



    It becomes difficult when resetting the transmission because it may have to be done by the dealership or a shop that has a computer with the ability to re-learn the Mitsubishi transmission controller. A typical charge might be 1.0 to 1.5 hrs.



    Regards,

    TXTEXAN

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  • Mitsubishi Master
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Removal instructions for the ECM/TCM (which contains the TCM as well) for a 1999 Eclipse

Be sure to unplug the Negative battery cable before removing the unit!!! The ECM for engine control and transmission control is located under the console area near the firewall of engine compartment inside the car. To find it you must remove the small plastic decorative caps and remove the Phillips head screws on both sides of center console area. This area is under the shifter and emergency brake. After removing screws from both sides, remove the trim panels on both sides to expose the areas under the console. Now look toward the front of the car in the center, under the stereo & A/C area of dash. The ECM is sitting upside-down with 3 plugs in it. It is gold in color and the size is approximately 6"x5"x1.5". You will need a 10mm or 12mm socket or wrench to unscrew the 3 fasteners holding the ECM in place. It is in there tight, so take your time. To remove the 3 plugs connecting the ECM to the wiring harness, you must depress the small tab in the center of each plug and pull down or in an outward motion. The new ECM must be programmed by the dealer for your particular car to function properly.

Posted on Apr 01, 2011

  • 1 more comment 
  • yadayada
    yadayada Apr 01, 2011

    Please excuse me but the TCU/TCM are separate in the 1998 model year, just had to dig a little deeper to find that out. So here is the removal information on the TCU/TCMin the 1998 Eclipse.



    1990-99 Eclipse/Laser/Talon auto transmission controller ECM TCU removal directions:

    If you have an Mitsubishi vehicle 1989-1994 with AT (automatic transmission), you will have a TCU or transmission control unit. These computers are also failure-prone. We can test and repair most TCUs 1989-1994 as well. The TCU for most Mitsubishi's is located behind the stereo dash area towards the front of the engine control ECM usually, closer to the firewall. The TCU is set differently in that it is laying flat or horizontal as apposed to the ECM, which is normally vertical and upside-down. The other possibility is under the emergency brake area. NOTE: not all the aforementioned cars have problems with the TCU's. Call for more info. Look for the unit towards the front of the center console near the firewall. It is attached to a mounting bracket that should be removed first. There are mounting bolts near the firewall and the back of console. Be careful when removing the unit with mounting bracket due to the wiring harness attachment. Remove the Two or three plugs by depressing in center of tab and pulling away from the unit.

    1990-99 Eclipse/Laser/Talon auto transmission controller ECM TCU removal directions:

    If you have an Mitsubishi vehicle 1989-1994 with AT (automatic transmission), you will have a TCU or transmission control unit. These computers are also failure-prone. We can test and repair most TCUs 1989-1994 as well. The TCU for most Mitsubishi's is located behind the stereo dash area towards the front of the engine control ECM usually, closer to the firewall. The TCU is set differently in that it is laying flat or horizontal as apposed to the ECM, which is normally vertical and upside-down. The other possibility is under the emergency brake area. NOTE: not all the aforementioned cars have problems with the TCU's. Call for more info. Look for the unit towards the front of the center console near the firewall. It is attached to a mounting bracket that should be removed first. There are mounting bolts near the firewall and the back of console. Be careful when removing the unit with mounting bracket due to the wiring harness attachment. Remove the Two or three plugs by depressing in center of tab and pulling away from the unit.

  • yadayada
    yadayada Apr 02, 2011

    Hello

    I gave you the details on hwo to find and replace, di you read my second post?

  • yadayada
    yadayada Apr 02, 2011

    TCU stands for Transmission Control Unit.

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