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U1255 Diagnostic Trouble Code Discussion for August 2007

Class 2 Communication Malfunction


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Trouble Ticket Help Requests for DTC U1255
Help Request Posted
2001 Chevrolet Impala 3.4L No Start VIN: 2GIWF52E11
U1255: Class 2 Communication Malfunction. ... checked codes and got all the codes listed. Customer stated that when it would not crank the radio did not work either. I could not duplicate the problem so I performed the tsb for tightening bcm terminals and cleaned the grounds for the bcm and the ones a...
August 03, 2007
2001 Chevrolet Impala 3.4L No Start VIN: 2GIWF52E11
U1255: Class 2 Communication Malfunction. ... checked codes and got all the codes listed. Customer stated that when it would not crank the radio did not work either. I could not duplicate the problem so I performed the tsb for tightening bcm terminals and cleaned the grounds for the bcm and the ones a...
August 03, 2007