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U0140 Diagnostic Trouble Code Discussion for September 2013

Lost Communication With BCM


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Trouble Ticket Help Requests for DTC U0140
Help Request Posted
2006 Pontiac Torrent 3.4L No Start VIN: 2CKDL73F36
U0140: Lost Communication With BCM. Calling all GM techs with programming experience- We replaced EGR valve and tube with updated ones per TSB. Then I went to reprogram the PCM per the TSB. The vehicle was not entered in the database, so I needed to call ACDelco help desk, and eventually they go...
September 06, 2013