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U1300 Diagnostic Trouble Code Discussion for September 2015

Class 2 Data Line Short To Ground


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Trouble Ticket Help Requests for DTC U1300
Help Request Posted
2006 GMC Canyon SLE 2.8L No Start, Cuts out, MIL Lamp on VIN: 1GTCS14826
U1300: Class 2 Data Line Low Voltage. ... restart at the time, finally got it started and drove it in, had several communication codes in several modules, started it up w no problems , sat over the weekend and yesterday it wouldn't start, The key chime was going off even with the key out, acting f...
September 22, 2015