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U0140 Diagnostic Trouble Code Discussion for October 2011

Lost Communication With BCM


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Trouble Ticket Help Requests for DTC U0140
Help Request Posted
2006 Chevrolet Cobalt LS 2.2L No Communication VIN: 1G1AK55F96
U0140: Lost Communication with BCM. ... 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
2006 Chevrolet Cobalt LS 2.2L No Communication VIN: 1G1AK55F96
U0140: Lost Communication with BCM. ... 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