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U1300 Diagnostic Trouble Code Discussion for March 2013

Class 2 Data Line Short To Ground

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Trouble Ticket Help Requests for DTC U1300
Help Request Posted
2006 Cadillac CTS 3.6L Theft light VIN: 1G6DP57746
U1300: Class 2 Data Line Low Voltage. ... help, the vehicle runs good the problem is that the ignition key does no let you take the key off, and it has trac light, and security light on.. Has u1300 and p1629 present at all times if i erase code it throws right away back on, i checked all the power...
March 18, 2013