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U0101 Diagnostic Trouble Code Discussion for November 2016

Lost Communication With TCM


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Trouble Ticket Help Requests for DTC U0101
Help Request Posted
2006 Mercury Mountaineer Premier 4.6L MIL Lamp on, No Communication VIN: 4M2EU48806
U0101: Lost Communication with TCM - Reported from TCM PCM. Second post in as many days, glad I get 4... This Mountaineer has an incredibly intermittent issue of setting the listed communication codes from assorted modules. Problem was originally a concern about the TRAC light coming on at startup. Had voltage and comm...
November 02, 2016
2011 Ford F-150 XL 5.0L No Start VIN: 1FTFW1EF3B
U0101: t case. Hi,I have this truck that is an intermittent no start, no crank. When this happens I lose communication with a lot of modules,the ECM, ABS, DSPM, Airbag, park aid,transmission, trailer brake control,modules and a few others, it also sets at least 16 communicat...
November 14, 2016
2006 Mercury Mountaineer Premier 4.6L MIL Lamp on, No Communication VIN: 4M2EU48806
U0101: Lost Communication with TCM - Reported from TCM PCM. Second post in as many days, glad I get 4... This Mountaineer has an incredibly intermittent issue of setting the listed communication codes from assorted modules. Problem was originally a concern about the TRAC light coming on at startup. Had voltage and comm...
November 29, 2016