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U0140 Diagnostic Trouble Code Discussion for June 2013

Lost Communication With BCM

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Trouble Ticket Help Requests for DTC U0140
Help Request Posted
2007 GMC Sierra 1500 SLT 6.0L No Start VIN: 2GTFK13Y87
U0140: Lost communication with the BCM. ... tech's. This truck came in for a brake job. It was on the rack for the weekend in neutral so the key was off as far back as possible. (Alternator light on but the ignition system off). Brake job was performed and the battery was dead. Charged the battery a...
June 05, 2013