U1255 Diagnostic Trouble Code Discussion for August 2014
Class 2 Communication Malfunction
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| Help Request | Posted | |
| 2003 Chevrolet Impala 3.4L No Start VIN: 2G1WF52EX3 U1255: Class 2 Communication Malfunction. ... until I jump the starter relay, then no fuel after a second. Scanned for codes and the PCM won’t communicate with the scanner. All other modules communicate and most have codes for missing class 2 serial data. (U1000, U1255,... |
August 05, 2014 |
