![]() ![]() Once the non-functional Allison TCM is removed and sent to UpFix for repair, UpFix typically services and returns the renewed TCM in a few days. The finished repair is ready to install out of the box with no additional programming needed. UpFix then uses software to confirm the TCM functions perfectly. However, the light could also mean other things, such as low fluid levels, that the transmission is overheating or the internal components have worn. If yours is, a defective TCM could make it turn on. But it does take a bit of experience to not damage anything on the. Transmission Warning Light Not every vehicle is equipped with a transmission warning light. Objectively, it is a fairly simple repair: simply remove the transmission pan, remove the valve body, unbolt the mechatronic or lead frame from the valve body and install the new one. “We apply improved thermal paste to better control any future heat issues, we replace key microprocessors updated with the latest firmware specific to the vehicle and the vehicle’s VIN, then our techs inspect and repair all connectors, clean and inspect, and seal the unit.” The 6R80 mechatronic / lead frame is located inside of the transmission on the 6R80 valve body. “We start by removing the conformal coating from specific areas, a step to prevent future problems,” said Ernest Martynyuk, UpFix auto electronics division lead. To repair this internal failure, UpFix has developed a repair process as follows: Read more: Six best practices to optimize preventive maintenance Specifically, the Allison TCM is used with Duramax diesel engines with engine RPO codes LBZ, LMM, LML, LLY, and LGH.Īccording to UpFix, the Allison A50/T14 fourth generation TCMs have the highest failure rate and is caused by the TCM’s circuit board conformal coating failing due to heat and vibration, leading to transmission issues. Even if you don't have an XJ yet you're still welcome to be part of the /r/CherokeeXJ community.UpFix is offering a new Allison automatic transmission control module (TCM) repair service for 2009-2015 GM HD trucks.Īccording to the company, documented Allison TCM failures affect 2009-2015 Chevrolet/GMC 2500/3500 HD trucks, some 20 Chevrolet Kodiak vehicles, and GMC Topkick C4500-C6500 trucks. is the best online shopping platform where you can buy Allison PTS TCM Transmission. As long as it's an XJ or MJ.įeel free to post Jeep Part write ups or Cherokee Tech questions. Transmission electron microscopic image of an isolate from a case. TCM Transmission Control Module (P/N 29551869) OEM in My Website. Post your Cherokee pictures here whether its Bone Stock or a Mall Crawler. Message the Mods to circumvent this.įollow up with the resolution to your problem. TCM-Transmission Control 2001-2005 AL5 TCM, Allison 1000 2006-2010 A40, A46, A50 TCM, Allison 1000 2011-2016 A50, T14 TCM, Allison 1000 Product Categories. If you are unsure what to use please ask the moderators.Īll accounts less than 24 hours old will be automatically blocked. All posts must be by Homo Sapiens.Īll posts shall use imgur or some other reddit-friendly hosting platform. No Bots Whatsoever No metric conversions, no haikus, no wikibots. If you have questions about this, please message the mods. TCM, and is set when the PCM (Powertrain Control Module) detects a signal from the TCM (Transmission Control Module) that is inaccurate, implausible. No endorsement or criticism for a political party or person. No Politics No politically charged bumper stickers, flags, decals, or dog whistles. Your TCM also works with the engine, transmission fluid temperature sensor, brake pedal position sensor, throttle position sensor, and in some cases, the turbine sensor. If you think your project is of special interest to the community, please message the Mods first. A transmission control module (TCM) controls your transmission functions and shifting. As was mentioned above, your transmission control module will likely be on or very near the transmission. Do not solicit money from the community, do not sell your Jeep here, and do not post multiple parts of a project in separate threads. Don't be a jerk to people who are asking for help, or are trying to help you.ĭo not spam. Try to upload photos using imgur or any photo viewer that's reddit friendly.īe Nice Self-explanatory. Owning an XJ means you're part of the Jeep family (regardless of what Wrangler owners say) so be respectful to your fellow Jeepers. The transmission control module is a sophisticated processor that receives signals from the drivetrain and outputs changes to maintain adequate speed, temperature and shifting. ![]()
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