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U1301 Diagnostic Trouble Code Discussion for August 2018

Class 2 Data Line Short To Voltage


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Trouble Ticket Help Requests for DTC U1301
Help Request Posted
2008 Buick LaCrosse CXS 3.6L No Start VIN: 2G4WE58788
U1301: high volts class 2 serial data. ... engine on dash comes on with head lights, radio comes on but makes a audible bump noise through the speakers. No crank at all. I can communicate with the pcm no problem, only code is a u1301. When i do a system scan with my modis, it gets stuck on bcm...
August 27, 2018