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U0101 Diagnostic Trouble Code Discussion for October 2011

Lost Communication With TCM

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Trouble Ticket Help Requests for DTC U0101
Help Request Posted
2006 Chevrolet Cobalt LS 2.2L No Communication VIN: 1G1AK55F96
U0101: Lost communication with TCM. ... it had been wrecked and repaired with a check engine light on with about 20 codes including a PCM error code. We replaced the pcm only to find a couple of communication codes. This is were the real trouble starts. When checking for codes in the PCM we fin...
October 05, 2011