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U1000 Diagnostic Trouble Code Discussion for March 2014

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2006 Chevrolet Express 3500 LS 6.0L No Start VIN: 1GBJG31U86
U1000: Class 2 data link fault. This vehicle cannot start from the key , we can start it by the starter relay. Also we have no communication the the abs unit and the body control module. Also customer stated that the reduce power sign comes up . Any help will be aprreciated.
March 18, 2014