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U1000 Diagnostic Trouble Code Discussion for August 2007

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2000 Buick Century Custom 3.1L No Start VIN: 2G4WS52J3Y
U1000: Class 2 Communication Malfunction. ... that is making me go in circles. Came in for a no start, customer stated that they had to jump it twice. Thinking charging system problem I had them park it in front of the shop. When I got to it found the battery was only at 10.6 after charging. Installed...
August 28, 2007