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U0140 Diagnostic Trouble Code Discussion for May 2014

Lost Communication With BCM

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Trouble Ticket Help Requests for DTC U0140
Help Request Posted
2008 Buick Enclave CXL 3.6L MIL Lamp on, limp mode VIN: 5GAEV23788
U0140: EBCM- Lost Communication With Body Control Module. ... 2008 Buick enclave that will basiclly go into limp mode but it is so random that we cant get it to act up. The problem has been going on for about 2 years and there was a different tech on this Buick before he quit and i started to work on it about 2 month...
May 16, 2014