TCM - Transmission Control Module????? Show Junior Member Thread Starter
Join Date: Aug 2011 Location: Portland, Oregon Posts: 62 Likes: 0 Received 0 Likes on 0 Posts Model: Cherokee 2001 Cherokee Sport - I'm having some issues with my transmission. Its not wanting to shift into 4th gear....but sometimes it does. I took it into the shop and they replaced the range sensor and told me it was fixed. It was not. Now they are telling me its the Transmission Control Module. I'm thinking I'd rather try and get one and install it myself. Electronics are not my specialty but I look at it as one more thing to learn about my jeep. I found a place that will send me a refurbished one pre-programmed http://carcomputerexchange.com/jeep/.../prod_334.html Any tips, advice, experiences to share?? Thanks Admin from the shadows
Join Date: Sep 2010 Location: Lantana, Fl Posts: 33,895 Year: 1996 Model: Cherokee (XJ) Engine: 4.Slow The TCU on your model year is an integrated part of the ECU. Only way to replace that is to replace the whole ECU. Have you ever had you trans fluid and filter changed? Senior Member
Join Date: Mar 2012 Location: FL. Posts: 615 Likes: 0 Received 0 Likes on 0 Posts Year: 2000 Model: Cherokee Quote: Originally Posted by Outlaw Star The TCU on your model year is an integrated part of the ECU. Only way to replace that is to replace the whole ECU. Have you ever had you trans fluid and filter changed? http://www.ebay.com/itm/98-01-Jeep-Cherokee-Transmission-Control-Module-Unit-TCM-TCU-56041386AB-/221325693849?_trksid=p2054897.l5667 Admin from the shadows
Join Date: Sep 2010 Location: Lantana, Fl Posts: 33,895 Year: 1996 Model: Cherokee (XJ) Engine: 4.Slow I'm pretty sure 01 had the integrated unit but i'll double check for yall. Member
Join Date: Jan 2013 Location: Lees Summit Posts: 125 Likes: 0 Received 0 Likes on 0 Posts Year: 1996 Model: Cherokee Engine: 4.0 ho Did you get your money back since they told you that was the problem fixed it and it wasn't? Junior Member Thread Starter
Join Date: Aug 2011 Location: Portland, Oregon Posts: 62 Likes: 0 Received 0 Likes on 0 Posts Model: Cherokee All fluids have been changed. No money back from the mechanic I went to.....I gave them a chance to try and fix it but I wasn't giving them any more money. The guy is giving me a the runaround...so I'm picking it up today. If I order the unit posted above on ebay...does it need to be reprogrammed? Thanks CF Veteran
Join Date: Aug 2010 Location: Canton, MI Posts: 8,357 Likes: 0 Year: 1999 Model: Cherokee Engine: 4.0 Quote: Originally Posted by CHRONIC_2001_XJ All fluids have been changed. No money back from the mechanic I went to.....I gave them a chance to try and fix it but I wasn't giving them any more money. The guy is giving me a the runaround...so I'm picking it up today. If I order the unit posted above on ebay...does it need to be reprogrammed? Thanks That's a good part number for a '98-'01 XJ TCM in the Ebay view. I don't know what programming they're talking about, but yes, go for it. Do you know how to get at the TCM to change it? Make sure that before unplugging the TCM connector that you disconnect the battery negative post connector. Junior Member Thread Starter
Join Date: Aug 2011 Location: Portland, Oregon Posts: 62 Likes: 0 Received 0 Likes on 0 Posts Model: Cherokee Not sure where its located. Under the dash some where?? Driver side? Senior Member
Join Date: Mar 2012 Location: FL. Posts: 615 Likes: 0 Received 0 Likes on 0 Posts Year: 2000 Model: Cherokee No programming needed. CF Veteran
Join Date: Aug 2010 Location: Canton, MI Posts: 8,357 Likes: 0 Year: 1999 Model: Cherokee Engine: 4.0 Quote: Originally Posted by prcherokee To get at this, remove the trim panel and kick panel from under the steering column. Junior Member Thread Starter
Join Date: Aug 2011 Location: Portland, Oregon Posts: 62 Likes: 0 Received 0 Likes on 0 Posts Model: Cherokee Cool Thank you...thats what I will do. CF Veteran
Join Date: Aug 2010 Location: Canton, MI Posts: 8,357 Likes: 0 Year: 1999 Model: Cherokee Engine: 4.0 Keep in mind that it was the same shop that hoodwinked you on your NSS is the same shop that determined that the TCM needs to be replaced. Newbie
Join Date: Jul 2013 Location: Raleigh, NC Posts: 2 Likes: 0 Received 0 Likes on 0 Posts Year: 2000 Model: Cherokee Engine: 4.0L Quote: Originally Posted by CCKen Keep in mind that it was the same shop that hoodwinked you on your NSS is the same shop that determined that the TCM needs to be replaced. After some exhaustive diagnosing and research I am 99.9% sure I need to replace the TCM. All with the help of CCKen's posts! Does the TCM need to be programmed to my specific rig or can I just plug n' play? A while back I replaced the PCM and it had to be programmed with my VIN, mileage etc. I'm guessing that's not the case with the TCM but I'd just like to be certain. Admin from the shadows
Join Date: Sep 2010 Location: Lantana, Fl Posts: 33,895 Year: 1996 Model: Cherokee (XJ) Engine: 4.Slow Quote: Originally Posted by jtm1202 After some exhaustive diagnosing and research I am 99.9% sure I need to replace the TCM. All with the help of CCKen's posts! Does the TCM need to be programmed to my specific rig or can I just plug n' play? A while back I replaced the PCM and it had to be programmed with my VIN, mileage etc. I'm guessing that's not the case with the TCM but I'd just like to be certain. If its a Renix, just plug n play. If its the H.O., the TCU is integrated with the ECU. CF Veteran
Join Date: Aug 2010 Location: Canton, MI Posts: 8,357 Likes: 0 Year: 1999 Model: Cherokee Engine: 4.0 The TCM does not need to be programmed. Here's what the TCM looks like installed ('98-'01 XJ).
Can I drive with a faulty TCM?If you ever have a problem with your transmission control module, you'll need to have it inspected right away. A bad TCM will spell trouble for your vehicle and your ability to drive it.
Is it hard to replace a transmission control module?How is the transmission control module replaced? Replacing the TCM is normally easy since it has to first be accessed for diagnostics. The hardest part can be finding the TCM. In most vehicles, it's in the engine bay, but some manufacturers place it inside the car.
Is the TCM inside the transmission?While swapping out a box might seem simple, the TCM is located inside the transmission in many modern cars, trucks, and SUVs.
What can cause a transmission control module to fail?A transmission control module is an electronic device and a burnt circuit is the reason for its failure in most cases. It can be a faulty resistor or transistor on a printed circuit board. Any qualified technician or an experienced car mechanic can fix the problem.
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1997 jeep cherokee transmission control module
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