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D
Lv 4
D asked in Cars & TransportationCar MakesDodge · 8 years ago

U0101 Lost Communication With Transmission Control Module (TCM)?

Check Engine light code. Simplify for me to understand please?

3 Answers

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  • Ted
    Lv 6
    8 years ago
    Favorite Answer

    Check and clean all connectors to the transmission, check the ground at the transmission control module and the connections to it. Something in the wiring is not letting the signal from the transmission control module display it's results to the master electronic control module. It's a problem in the wiring harness somewhere between the transmission and the TCM or the TCM and the ECM.

    Source(s): 35 years ASE GM master tech
  • Anonymous
    7 years ago

    check and clean the connectors of the transmission .... 2 check the trans,,,, control module connectors ..........Tcm check & in the last Ecm

  • 5 years ago

    i got the error on 2006 C350 mercedes benz. I just wanted to know as to where do i find the the TCM

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