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U1301 Diagnostic Trouble Code Discussion for January 2013

Class 2 Data Line Short To Voltage


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Trouble Ticket Help Requests for DTC U1301
Help Request Posted
2008 Chevrolet Trailblazer LT 4.2L Stall VIN: 1GNDT13S28
U1301: Class 2 communication circuit low voltage. I need some help here, this trailblazer was towed in with a start, then stall issue. When it showed up, it was a no start, no ground from the ecm to the starter relay. Replaced the ecm, sent it to dealer for flashing, came back with a start, then stall after a...
January 07, 2013
2008 Chevrolet Trailblazer LT 4.2L Stall VIN: 1GNDT13S28
U1301: Class 2 communication circuit low voltage. I need some help here, this trailblazer was towed in with a start, then stall issue. When it showed up, it was a no start, no ground from the ecm to the starter relay. Replaced the ecm, sent it to dealer for flashing, came back with a start, then stall after a...
January 07, 2013