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U1000 Diagnostic Trouble Code Discussion for December 2014

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2003 Chevrolet Malibu LS 3.1L No Start VIN: 1G1NE52J43
U1000: Class 2 Communication Malfunction. ... had a u1000 code for loss of communication, after reading tech helps determined that the failure may be the ignition switch installed gm switch still no start now had new codes show up as well as the u1000 code had b2965 for key in circuit problem, b2958 f...
December 09, 2014