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U1255 Diagnostic Trouble Code Discussion for March 2005

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1255
Help Request Posted
2000 Chevrolet Impala 3.4L No Start, Stall VIN: 2G1WF55E5Y
U1255: Class 2 Communication Malfunction. the following this is for all of the tech 2 users. along with the b1626 no other problems could be found. checking the systems with the tech ii found this courious item. under bcm data/security there is a listing as follows, lockout timer status 2550 sec, auto...
March 21, 2005