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I have dodge charger 2012 trouble code U0101 Lost communication with TCM

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It is under warranty. unless you installed a radio, alarm or remote start.

Posted on May 09, 2014

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Posted on Jan 02, 2017

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SOURCE: Error code U0101: Lost Comm with TCM

i do have the same problem and i took the car to 5 differant mechanic an dget no solution the aaamco the petboys the mazda dealer another transmission specialist please let me know if u have any solution

Posted on Jul 11, 2010

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U0101 fault code kia cerato 2010 . For which sensor ?


No sensor , communication problem ! All the computers ,modules are all connected on a serial data communication network . U - codes pertain to a no communication problem .
U0101 Kia Lost Communication With Transmission Control Module this is a problem best left to the dealer !

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U0101-no communication with transmission control module


Devon, are you pulling the code with a VAGCOM or a generic code reader? If a battery disconnect and reset doesn't help it is likely a bad connector, wiring problem, or a computer issue. A vagcom unit will be useful in establishing comms with the TCM.

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What do these codes U0100, U0155, U0101 and P2187 mean for my mazda?


U0100 - Lost Communication with ECM/PCM "A"
U0155 - Lost Communication with Instrument Panel Cluster (IPC) Control Module
U0101 - Lost Communication with TCM
All of them are Geniric Codes 4 Mazda, I would say who ever was working on the car last, posobly forgot or missted 1 or 2 connection
plugs along the way near the last repairs. So just trace yr last steps 2 see if ther any unpluged connectors, cos looks like they all are part of same chane in that line.
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Hope that helpes you. Good luck.
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1 Answer

Tcm code u0101


TCM transmission control module. tells the trans when to shift up down or at all. may just need the module changed or hopefully not a short in the wires check the plugs on this also. dirty or corroded wires/plugs also cause this,

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Toyota codes u0100 and u0101


U0100 means lost of communication with ECM/PCM
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Code u0100 and u0101 2008 aveo


U0100 is lost communication with the PCM (on board computer that controls everything) the U0101 is no communication with the TCM (transmission Control Module. I have read where a lot of people have had no luck trying to fix this and the delaers charge big bucks for it. typically the problem starts shortly after being jump started or having to jump start someone else and hooking the cables up properly. it can also just happen over time which is another of the many reasons i hate new cars. one fix i saw was to remove the positive battery cable and let it sit for 15-30 minutes then ground the positive cable out for 20 seconds before reconnecting it to the battery again, this may not work and if it doesn't it will require either the TCM be replaced or the dealer to have to dig into your car and charge you big time for the work. hope that helps

little side note i have seen some of these error messages cleared up by cleaning up the ground contacts for the TCM and even one fella had some luck replacing the speed control sensor in his and the lights all went away and it ran fine after that.

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The U0101 means "Lost Communication with TCM"
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4 Answers

Error code U0101: Lost Comm with TCM


i do have the same problem and i took the car to 5 differant mechanic an dget no solution the aaamco the petboys the mazda dealer another transmission specialist please let me know if u have any solution

Jan 02, 2010 | 2006 Mazda 3

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