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U1000 Diagnostic Trouble Code Discussion for April 2011

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2003 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC52F83
U1000: Class 2 Communication Malfunction. ... the intial complaint, the cluster was not reading the correct information. I programmed this BCM via Tech 2. Everything went smooth and functioned correctly. Next day the car will intermittently not start and ERROR will show in the dash when the condition ...
April 04, 2011